Aplicaciones avanzadas de tecnología de extrusión de doble tornillo Masterbatch y soluciones integrales de procesamiento

1. Descripción general de la industria de Masterbatch y conocimientos básicos

1.1 Situación actual y tendencia de desarrollo de la industria Masterbatch

lote maestro, También conocido como masterbatch de color o concentrado de color., es un nuevo tipo de material colorante plástico con alta concentración, alta dispersabilidad y uso conveniente. Se elabora dispersando uniformemente pigmentos o colorantes., Portadores y aditivos en una proporción específica mediante tecnología profesional de mezcla y granulación por extrusión.. Comparado con el método tradicional de coloración directa. (Adición directa de pigmentos a materias primas plásticas.), masterbatch tiene las ventajas de un uso conveniente, coloración uniforme, rendimiento estable, protección del medio ambiente y ahorro de energía, que ha reemplazado gradualmente el método de coloración tradicional y se ha convertido en la solución colorante principal en la industria del plástico..

En los últimos años, impulsado por el rápido desarrollo de industrias transformadoras como el embalaje, automotor, textiles, electrónica, construcción y electrodomésticos, El mercado mundial de masterbatch ha mostrado una tendencia de crecimiento rápido y constante.. Según datos relevantes de la industria, El tamaño del mercado mundial de masterbatch ha superado 30 mil millones de dólares estadounidenses, y se espera que mantenga una tasa de crecimiento anual compuesta de 6%-8% en los próximos cinco años. entre ellos, Asia-Pacífico es el mercado de producción y consumo de masterbatch más grande del mundo, representando más de 60% de la cuota de mercado mundial, principalmente debido al rápido desarrollo de la industria del plástico en China, India y otros países, la mejora continua de la capacidad de apoyo industrial, y la creciente demanda de alta calidad, productos masterbatch funcionales y respetuosos con el medio ambiente.

Porcelana, como el mayor productor y consumidor de masterbatch del mundo, Tiene una enorme demanda de mercado y una cadena industrial completa.. La producción y el consumo anual de masterbatch están creciendo a un ritmo de dos dígitos, especialmente en los campos de los vehículos de nuevas energías, embalaje verde, textiles y dispositivos médicos de alta gama, la demanda de masterbatch de alto rendimiento (como masterbatch resistente a altas temperaturas, masterbatch retardante de llama, masterbatch de protección del medio ambiente) está mostrando una tendencia de crecimiento explosivo. Con la mejora continua de las políticas globales de protección ambiental. (como la prohibición de pigmentos tóxicos y nocivos) y la mejora de la demanda de los consumidores de productos plásticos de alta calidad, La industria de los masterbatch se está desarrollando gradualmente hacia una alta concentración., alta dispersabilidad, funcionalización, protección e inteligencia ambiental.

Las principales tendencias de desarrollo de la industria de los masterbatch se reflejan en cuatro aspectos: primero, protección del medio ambiente y baja toxicidad. Con el fortalecimiento de la conciencia sobre la protección del medio ambiente y el rigor de las políticas de protección del medio ambiente., no tóxico, inofensivo, El masterbatch de protección ambiental poco volátil y degradable se convertirá en la corriente principal del mercado., y pigmentos tóxicos y nocivos (como pigmentos de metales pesados) será eliminado gradualmente; segundo, funcionalización. además de colorear, masterbatch también se está desarrollando hacia la integración funcional, como masterbatch retardante de llama, masterbatch antiestático, mezcla maestra antibacteriana, Masterbatch resistente a los rayos UV, que puede cumplir con los requisitos de uso especiales de los productos posteriores; tercero, alta concentración y alta dispersabilidad. El masterbatch de alta concentración puede reducir la cantidad agregada, reducir los costos de producción, y la alta dispersabilidad puede garantizar una coloración uniforme de los productos plásticos, Evite manchas de color y diferencias de color., cuál es la clave para mejorar la calidad del producto; cuatro, inteligencia y automatización del procesamiento. El procesamiento de masterbatch requiere un control estricto de la uniformidad de la mezcla, temperatura y otros parámetros. Inteligente, Las líneas de producción automáticas de extrusión de doble tornillo se convertirán en la corriente principal., realizando monitoreo en tiempo real, ajuste automático de parámetros y producción en masa, Mejorar la eficiencia de la producción y la consistencia del producto..

Como equipo de procesamiento central de masterbatch., Las extrusoras de doble tornillo desempeñan un papel crucial en el desarrollo de la industria de los masterbatch.. La mezcla de Masterbatch tiene requisitos estrictos sobre el efecto de mezcla y dispersión., Control de temperatura y eficiencia de producción de extrusoras.. La serie completa de extrusoras de Zhuoyue (HTS BÁSICO/PLUS/SUPER, ZTE, HTE) están especialmente diseñados para el procesamiento de masterbatch, con ventajas de rendimiento específicas, que puede satisfacer eficazmente las necesidades de procesamiento de diferentes tipos de masterbatch y ayudar a los fabricantes a mejorar la calidad del producto y la eficiencia de la producción..

1.2 Composición central y principio de funcionamiento de Masterbatch

Masterbatch se compone de tres elementos básicos: pigmentos o colorantes, portadores y aditivos. La proporción y el rendimiento de cada elemento determinan directamente la calidad y el efecto de uso del masterbatch.. Comprender la composición central y el principio de funcionamiento del masterbatch es la base para dominar su tecnología de procesamiento y seleccionar el equipo de extrusión adecuado..

1.2.1 pigmentos o colorantes: El componente principal para colorear

Los pigmentos o tintes son los componentes principales que otorgan el rendimiento de coloración del masterbatch., contabilidad de 10%-80% de la composición del masterbatch (la proporción específica depende del tipo de pigmento, requisitos de coloración y concentración de masterbatch). Los pigmentos se dividen en pigmentos orgánicos y pigmentos inorgánicos.: Los pigmentos orgánicos tienen colores brillantes., alta fuerza colorante, buena transparencia, pero poca resistencia al calor y a la intemperie., Se utiliza principalmente en el procesamiento de plásticos a baja temperatura. (como educación física, PÁGINAS) y productos con altos requisitos de color (como textiles, películas de embalaje); Los pigmentos inorgánicos tienen buena resistencia al calor., resistencia a la intemperie y estabilidad química, pero baja fuerza colorante y poca transparencia., Utilizado principalmente en el procesamiento de plásticos a alta temperatura. (como los plásticos de ingeniería) y productos para exterior (como materiales de construcción, piezas exteriores de automóviles).

Los tintes son diferentes de los pigmentos.. Los tintes tienen buena solubilidad en materias primas plásticas., colores brillantes y alta transparencia, pero poca resistencia al calor y resistencia a la luz., Utilizado principalmente en productos de plástico transparente. (como botellas de PET, Hojas de PC). La selección de pigmentos o colorantes debe basarse en el tipo de materia prima plástica. (temperatura de procesamiento), entorno de uso del producto (interior/exterior), requisitos de coloración (brillo del color, transparencia) y requisitos de protección del medio ambiente, para garantizar que el masterbatch tenga un rendimiento de coloración estable y cumpla con los requisitos de uso de los productos posteriores.

1.2.2 Transportistas: El componente de dispersión y adhesión.

Los portadores son la matriz del masterbatch., contabilidad de 10%-80% de la composición del masterbatch, Desempeña principalmente el papel de dispersar pigmentos/tintes y adherirse a materias primas plásticas.. El soporte debe tener buena compatibilidad tanto con pigmentos/tintes como con las materias primas plásticas de destino. (las materias primas plásticas a colorear), De lo contrario afectará la dispersabilidad de los pigmentos y el efecto colorante de los productos.. Los materiales portadores comunes incluyen polietileno. (educación física), polipropileno (PÁGINAS), cloruro de polivinilo (CLORURO DE POLIVINILO), poliamida (Pensilvania), tereftalato de polietileno (MASCOTA), etc., que se seleccionan según el tipo de materias primas plásticas de destino: Por ejemplo, El portador de PE se utiliza para colorear plástico PE., El portador de PP se utiliza para colorear plástico PP., y el portador de PA se utiliza para colorear plásticos de ingeniería..

El portador también debe tener una buena fluidez de procesamiento., lo que favorece la dispersión uniforme de los pigmentos durante el procesamiento de extrusión y la mezcla del masterbatch con las materias primas plásticas objetivo.. Además, El punto de fusión y la temperatura de procesamiento del soporte deben ser consistentes o ligeramente inferiores a los de las materias primas plásticas objetivo., Para evitar la descomposición del soporte o del plástico objetivo durante el procesamiento..

1.2.3 Aditivos: El componente funcional auxiliar

Los aditivos son componentes auxiliares que se agregan para mejorar el rendimiento del procesamiento., dispersabilidad y rendimiento de uso del masterbatch, contabilidad de 1%-10% de la composición del masterbatch. El tipo y la dosis de aditivos se determinan según el tipo de masterbatch y los requisitos de procesamiento.. Los aditivos comunes incluyen:

• Dispersantes: El aditivo más importante en masterbatch., que puede reducir la tensión superficial de los pigmentos., prevenir la aglomeración de pigmentos, y hacer que los pigmentos se dispersen uniformemente en el soporte. Los dispersantes comunes incluyen cera de polietileno., cera de polipropileno, ácido esteárico, estearato de calcio, etc.. La adición de dispersantes puede mejorar significativamente la dispersabilidad del masterbatch., asegurar una coloración uniforme de los productos, y reducir el desgaste de los equipos de extrusión.
• Compatibilizadores: Se utiliza para mejorar la compatibilidad entre pigmentos y portadores., y entre masterbatch y materias primas plásticas objetivo. Por ejemplo, cuando el plástico portador y el objetivo tienen poca compatibilidad (como soporte de PE y plástico PA), compatibilizadores (como polietileno injertado con anhídrido maleico) Se puede agregar para mejorar la fuerza de unión entre ellos., Evite la separación del masterbatch y el plástico objetivo durante el procesamiento., y mejorar las propiedades mecánicas de los productos..
• Estabilizadores de calor: Se utiliza para prevenir la descomposición de pigmentos., Portadores y plásticos objetivo durante el procesamiento de extrusión a alta temperatura.. Los estabilizadores de calor comunes incluyen sales de plomo., estabilizadores de calcio y zinc, estabilizadores orgánicos de estaño, etc., que se seleccionan de acuerdo con la temperatura de procesamiento y los requisitos de protección ambiental.
• Estabilizadores de luz y antioxidantes: Se utiliza para mejorar la resistencia a la intemperie y al envejecimiento de masterbatch y productos plásticos coloreados., Previene la decoloración del color y la degradación del rendimiento de los productos bajo la luz solar y el oxígeno., y extender la vida útil de los productos.
• Lubricantes: Se utiliza para reducir la fricción entre materiales y equipos de extrusión. (tornillo, barril, morir cabeza), mejorar la fluidez del procesamiento, reducir el consumo de energía, y evitar que el material se adhiera al equipo, lo que favorece el buen progreso del procesamiento de extrusión.

1.2.4 Principio de funcionamiento de Masterbatch

El principio de funcionamiento del masterbatch se basa en la dispersión uniforme de pigmentos de alta concentración en el soporte.. Durante el procesamiento de productos plásticos., una pequeña cantidad de masterbatch (generalmente 1%-5%) se mezcla con materias primas plásticas incoloras. Bajo la acción de altas temperaturas y fuerzas de corte durante la extrusión o el moldeo por inyección, el portador del masterbatch se funde y se mezcla con las materias primas plásticas objetivo, y los pigmentos uniformemente dispersos se liberan y distribuyen uniformemente en la matriz plástica objetivo., logrando así el propósito de colorear productos plásticos.. La clave de este proceso es que los pigmentos del masterbatch deben dispersarse uniformemente sin aglomeración., De lo contrario causará manchas de color., diferencia de color y otros defectos en los productos coloreados.

1.3 Clasificación común de Masterbatch

Masterbatch se puede dividir en diferentes tipos según diferentes estándares de clasificación., como el tipo de coloración, tipo de transportista, campo de aplicación, tipo funcional, etc.. La clasificación correcta ayuda a comprender mejor las características de rendimiento y los requisitos de procesamiento del masterbatch., y seleccionar equipos de extrusión y técnicas de procesamiento apropiados.

1.3.1 Clasificación por tipo de coloración

Según el tipo de componente colorante., masterbatch se puede dividir en masterbatch de color, masterbatch blanco y masterbatch negro.

• Mezcla maestra de color: El tipo más común de masterbatch., que utiliza pigmentos orgánicos o inorgánicos de varios colores (como el rojo, amarillo, azul, verde, naranja) como componentes colorantes, y se utiliza para colorear productos plásticos de varios colores.. La fuerza del tinte, El brillo del color y la dispersabilidad del masterbatch de color son los indicadores clave para medir su calidad..
• Masterbatch blanco: Usando dióxido de titanio (TiO2) como principal componente colorante, Se utiliza para blanquear productos de plástico o como color base para masterbatch de colores claros.. la blancura, El poder de cobertura y la dispersabilidad del masterbatch blanco son los indicadores clave.. El dióxido de titanio tiene una alta dureza., que tiene altos requisitos en cuanto a la resistencia al desgaste de los equipos de extrusión..
• Masterbatch negro: Usar negro de carbón como componente colorante principal., Se utiliza para colorear de negro productos plásticos.. El negro de carbón tiene buena resistencia a los rayos UV y a la intemperie., y también puede mejorar las propiedades mecánicas de los productos plásticos.. La dispersabilidad del negro de humo es la clave de la calidad del masterbatch negro.. La mala dispersabilidad provocará manchas negras y rayas en los productos..

1.3.2 Clasificación por tipo de transportista

Según el tipo de transportista, El masterbatch se puede dividir en masterbatch de PE., mezcla maestra de PP, Mezcla maestra de PVC, mezcla maestra de PA, lote maestro de PET, etc..

• Masterbatch de PE: Usando PE como portador, Es adecuado para colorear productos de plástico PE. (como películas de PE, tubos de PE, Piezas de moldeo por inyección de PE). Tiene buena compatibilidad con materias primas de PE., buena fluidez de procesamiento y coloración uniforme.
• Masterbatch de PP: Usando PP como portador, Es adecuado para colorear productos de plástico PP. (como fibras de PP, Piezas de moldeo por inyección de PP, láminas de polipropileno). Tiene buena resistencia al calor y es adecuado para el procesamiento de PP a alta temperatura..
• Mezcla maestra de PVC: Utilizar PVC como soporte, Es adecuado para colorear productos de plástico PVC. (como tubos de PVC, perfiles de PVC, películas de PVC). Debe combinarse con estabilizadores térmicos de PVC para evitar la descomposición del PVC durante el procesamiento..
• Masterbatch de plástico de ingeniería: Usando plásticos de ingeniería (Pensilvania, ordenador personal, PBT, etc.) como transportistas, Es adecuado para colorear productos plásticos de ingeniería. (como piezas de automóviles, componentes electricos). Tiene buena resistencia al calor y compatibilidad con plásticos de ingeniería., y tiene altos requisitos en equipos de procesamiento de extrusión..

1.3.3 Clasificación por campo de aplicación

Según el campo de aplicación del masterbatch., se puede dividir en masterbatch de fibra, mezcla maestra de película, masterbatch de moldeo por soplado, mezcla maestra de extrusión, masterbatch de moldeo por inyección, etc., que corresponden a los cinco principales campos de aplicación del masterbatch.

• Masterbatch de fibra: Utilizado para colorear fibras químicas. (como fibra de poliéster, fibra de nailon), que se utiliza en alfombras, textiles, cojines y otros productos. Requiere alta dispersabilidad y solidez del color., y sin pérdida de color durante el hilado y el tejido.
• Masterbatch de película: Utilizado para colorear películas plásticas. (como bolsas de compras, casting de peliculas, películas multicapa), que requiere alta transparencia y coloración uniforme, y sin manchas de color ni rayas en la superficie de la película.
• Masterbatch de moldeo por soplado: Se utiliza para colorear productos de moldeo por soplado. (como envases médicos y cosméticos, contenedores de pintura y aceite lubricante), que requiere buena fluidez de procesamiento y coloración uniforme, y sin deformación o diferencia de color del contenedor.
• Masterbatch de extrusión: Utilizado para colorear productos de extrusión. (como hojas, tubería, alambres y cables), que requiere buena estabilidad dimensional y coloración uniforme, Y no hay diferencia de color en la superficie del producto..
• Masterbatch de moldeo por inyección: Se utiliza para colorear productos de moldeo por inyección. (como piezas de automóviles, productos electronicos, materiales de construcción, electrodomésticos, muebles, juguetes), que requiere alta dispersabilidad y rendimiento estable, y sin diferencia de color entre lotes de productos.

1.3.4 Clasificación por tipo funcional

Según las funciones adicionales del masterbatch, se puede dividir en masterbatch ordinario (solo función de coloración) y masterbatch funcional (colorante + funciones adicionales). El masterbatch funcional es la tendencia de desarrollo de la industria, y los tipos comunes incluyen masterbatch retardante de llama, masterbatch antiestático, mezcla maestra antibacteriana, Masterbatch resistente a los rayos UV, masterbatch de endurecimiento, etc.. El masterbatch funcional requiere agregar los aditivos funcionales correspondientes sobre la base del masterbatch ordinario, que tiene requisitos más altos sobre el efecto de mezcla y dispersión del equipo de extrusión.

2. Tecnología de procesamiento central de Masterbatch: Tecnología de extrusión de doble tornillo

El procesamiento de masterbatch incluye principalmente la mezcla., extrusión, enfriamiento, granulación y otros procesos, entre las cuales la tecnología de extrusión de doble tornillo es la tecnología central de mezcla y granulación de masterbatch. En comparación con la tecnología de extrusión de un solo tornillo, La tecnología de extrusión de doble tornillo tiene las ventajas de una fuerte capacidad de mezcla y dispersión., control preciso de la temperatura, corto tiempo de residencia, Alta eficiencia de producción y gran adaptabilidad a las materias primas., que puede resolver eficazmente los problemas clave del procesamiento de masterbatch (como la aglomeración de pigmentos, mezcla desigual, baja eficiencia de producción) y garantizar la calidad de los productos masterbatch.

La mezcla de masterbatch es una de las principales aplicaciones de las extrusoras de doble tornillo. La calidad del masterbatch está directamente determinada por el rendimiento de la extrusora de doble tornillo y la racionalidad del proceso de procesamiento.. Los requisitos clave del procesamiento de masterbatch para extrusoras de doble tornillo son: fuerte efecto de mezcla y dispersión (para asegurar una dispersión uniforme de los pigmentos.), control preciso de la temperatura (Para evitar la descomposición del pigmento y la degradación del portador.), fuerza de corte apropiada (para romper aglomerados de pigmentos sin dañar las partículas de pigmento), alta eficiencia de producción (para satisfacer las necesidades de producción en masa) y buena resistencia al desgaste (para adaptarse al desgaste de pigmentos de alta dureza como el dióxido de titanio y el negro de carbón).

2.1 Dificultades de procesamiento de Masterbatch y requisitos para equipos de extrusión

Aunque la tecnología de extrusión de doble tornillo es adecuada para el procesamiento de masterbatch, debido a la particularidad de la composición del masterbatch (alto contenido de pigmento, easy agglomeration of pigments) and processing requirements (uniform dispersion, rendimiento estable), there are still many difficulties in actual processing. The main processing difficulties and corresponding requirements for extrusion equipment are as follows:

2.1.1 Pigment Agglomeration and Poor Dispersibility

Pigments (especially inorganic pigments such as titanium dioxide and carbon black) have strong polarity and large specific surface area, which are easy to agglomerate into large particles during storage and mixing. If the agglomerates cannot be fully broken and dispersed during extrusion processing, the masterbatch will have poor dispersibility, and the colored plastic products will have color spots, color streaks and uneven coloring, which will seriously affect the product quality. This is the most common and key difficulty in masterbatch processing.

This requires the extrusion equipment to have strong mixing and dispersing capacity and appropriate shear force. The twin-screw extruder should adopt an intermeshing co-rotating structure, and the screw should be equipped with sufficient mixing elements and shearing elements to generate strong shear force and kneading force during rotation, which can fully break the pigment agglomerates and make the pigments uniformly dispersed in the carrier. Además, the screw speed and extrusion pressure should be adjustable to adapt to different types of pigments and masterbatch concentrations.

2.1.2 Pigment Decomposition and Carrier Degradation Caused by Overheating

Most pigments (especially organic pigments) have poor heat resistance, and the carrier (como educación física, PÁGINAS) also has a certain temperature resistance limit. If the extrusion temperature is too high or the residence time of the material in the extruder is too long, the pigment will decompose (resulting in color fading, descoloramiento), and the carrier will degrade (resulting in reduced mechanical properties of the masterbatch). This is another key difficulty in masterbatch processing.

This requires the extrusion equipment to have precise temperature control capacity and short residence time. The barrel of the extruder should be divided into multiple temperature control sections, and the temperature of each section should be precisely controlled within the optimal range (usually 150-220℃ for ordinary masterbatch, 200-280℃ for engineering plastic masterbatch), with a temperature control precision of ±1℃. The screw structure should be optimized to shorten the residence time of the material in the extruder (generalmente 1-3 minutos), avoiding long-term contact between the material and high temperature.

2.1.3 Wear of Screw and Barrel Caused by High-Hardness Pigments

Inorganic pigments such as titanium dioxide and carbon black have high hardness (Mohs hardness 5-7), which will cause serious wear to the screw and barrel of the extruder during extrusion processing. Si el tornillo y el cilindro tienen poca resistencia al desgaste, se usarán rápidamente, resulting in reduced shear force and mixing capacity of the extruder, affecting the dispersibility of the masterbatch and reducing the service life of the equipment.

Esto requiere que el tornillo y el cilindro de la extrusora estén fabricados con materiales resistentes al desgaste de alta calidad y procesados ​​con tecnología de fabricación avanzada.. Por ejemplo, the screw and barrel can be made of imported wear-resistant alloy steel, y someterse a un tratamiento compuesto bimetálico o un tratamiento de revestimiento con láser, which can greatly improve the wear resistance and corrosion resistance of the screw and barrel, and adapt to the processing of masterbatch with high-hardness pigments.

2.1.4 Instability of Product Quality Between Batches

Masterbatch processing requires strict control of various parameters (such as formula ratio, tiempo de mezcla, extrusion temperature, velocidad del tornillo, velocidad de alimentación). If the parameters fluctuate, the quality of the masterbatch (such as concentration, dispersabilidad, tinting strength) will be unstable, resulting in color difference between batches of colored products, which will affect the reputation of the manufacturer.

This requires the extrusion equipment to have intelligent control capacity and stable performance. The extruder should be equipped with a PLC intelligent control system, which can realize precise control of feeding speed, velocidad del tornillo, extrusion temperature and other parameters, and store multiple sets of formula parameters. When producing different batches of masterbatch, only the corresponding parameters need to be called, avoiding repeated debugging, ensuring the stability of product quality between batches.

2.1.5 High Requirements on Processing Fluidity

Masterbatch has high pigment content, which will reduce the processing fluidity of the material. If the processing fluidity is too poor, the material will be difficult to convey and extrude, resulting in low production efficiency, unstable extrusion pressure and even equipment blockage.

This requires the extrusion equipment to have strong conveying capacity and adjustable shear force. The twin-screw extruder should adopt a reasonable screw pitch, Diseño de relación de avance y compresión., and the screw should be equipped with sufficient conveying elements to ensure the smooth conveying of materials. Además, the extrusion temperature can be appropriately adjusted to improve the processing fluidity of the material, and lubricants can be added to reduce the friction between materials.

2.2 Working Principle and Process Flow of Masterbatch Twin-Screw Extrusion

The twin-screw extrusion process of masterbatch is a complex physical mixing process, which mainly includes raw material pretreatment, premezcla, alimentación, fusión, mixing and shearing, extrusión, enfriamiento, granulación, screening and packaging. The core purpose is to uniformly disperse pigments, carriers and additives to form high-quality masterbatch granules. El principio de funcionamiento específico y el flujo del proceso son los siguientes:

2.2.1 Pretratamiento de materia prima

Raw material pretreatment is the foundation of masterbatch extrusion processing, which directly affects the mixing effect and product quality. The raw materials of masterbatch mainly include pigments/dyes, transportistas, aditivos (dispersantes, compatibilizadores, heat stabilizers, etc.). Los pasos de pretratamiento son los siguientes.:

• Tratamiento de secado: Some pigments (such as organic pigments) and carriers (como PA, MASCOTA) tener alta absorción de agua. Si el contenido de humedad es demasiado alto, it will cause bubbles, agglomeration and other defects in the masterbatch during extrusion processing, and even cause hydrolytic degradation of the carrier. Por lo tanto, Las materias primas deben secarse antes de procesarlas.. The drying temperature and time are determined according to the type of raw material: Por ejemplo, organic pigments are dried at 60-80℃ for 2-4 horas, PE/PP carriers are dried at 80-100℃ for 3-5 horas, and PA carriers are dried at 100-120℃ for 6-8 horas. El contenido de humedad de las materias primas secas debe controlarse por debajo 0.1%.
• Trituración y tamizado: For pigments with large particle size (such as titanium dioxide agglomerates) and carriers with uneven particle size, crushing and sieving treatment should be carried out to ensure the uniformity of raw materials. El tamaño de las partículas de las materias primas trituradas debe controlarse a 20-40 malla, which is conducive to the uniform mixing of raw materials and the breaking of pigment agglomerates during extrusion.
• Impurity Removal: The raw materials may contain impurities (such as metal particles, piedras, polvo) during production and transportation. Impurities not only affect the quality of the masterbatch, pero también desgasta el tornillo y el cilindro del extrusor., e incluso causar bloqueo del equipo. Por lo tanto, the raw materials must be filtered and removed before use, using a filter screen with appropriate mesh size to remove impurities.

2.2.2 Premezcla

Premixing is the key step to improve the mixing and dispersing effect of masterbatch. Según la relación de la fórmula., the dried, crushed and impurity-removed pigments, carriers and additives are put into a high-speed mixer for premixing. The purpose of premixing is to make the pigments and additives uniformly adhere to the surface of the carrier particles, form a preliminary mixture, and lay a foundation for the uniform dispersion during extrusion.

The key parameters of premixing are mixing speed, mixing time and mixing temperature. La velocidad de mezcla es generalmente 800-1200 rpm, the mixing time is 5-10 minutos, and the mixing temperature is controlled at 40-60℃. The appropriate mixing temperature can improve the adhesion of additives (como dispersantes) to the carrier and pigments, promoting uniform mixing. For masterbatch with high pigment content (como 50% arriba), the premixing time can be appropriately extended, and a small amount of dispersant can be added first to improve the dispersibility of pigments. After premixing, the mixture should be uniform in color, without obvious pigment agglomerates and additive particles.

2.2.3 Alimentación y transporte

The premixed mixture is sent to the feeding hopper of the twin-screw extruder through a screw feeder or a belt feeder. El dispositivo de alimentación de la extrusora suele estar equipado con una función de regulación de velocidad de conversión de frecuencia., que puede ajustar la velocidad de alimentación de acuerdo con la velocidad del tornillo y la velocidad de extrusión para garantizar que los materiales ingresen a la cavidad de extrusión de manera estable y uniforme, evitando la acumulación de material o una alimentación insuficiente.

The feeding hopper is also equipped with a drying device (such as an electric heating jacket) to prevent the raw materials from absorbing moisture again during feeding. For masterbatch with high pigment content and poor fluidity, a forced feeding device can be selected to ensure the smooth feeding of materials. Además, the feeding port of the extruder should be smooth, without dead corners, to avoid material sticking and accumulation.

2.2.4 Fusión, Mezclado y cizallamiento

Los materiales que entran en la cavidad de extrusión de la extrusora de doble tornillo son empujados hacia adelante continuamente por los tornillos giratorios.. La cavidad de extrusión está compuesta por un tornillo y un cilindro., y el volumen de la cavidad de extrusión disminuye gradualmente a lo largo de la dirección del eje. Cuando los tornillos giran, Los materiales se comprimen gradualmente bajo la acción de los tornillos y el cilindro., y la presión en la cavidad de extrusión aumenta gradualmente (generally 5-12MPa).

Al mismo tiempo, Los materiales están sujetos a una fuerte fuerza de corte y fuerza de fricción generada por el movimiento relativo entre los tornillos y el cilindro., así como entre los tramos de tornillo. The shear force and friction force can fully break the agglomerates of pigments, make the pigments uniformly dispersed in the melted carrier, and promote the fusion and compatibility between the pigment, carrier and additives. La fuerza de fricción también puede generar una cierta cantidad de calor., que se combina con el calentamiento externo del cañón. (calefacción eléctrica o calefacción a vapor) to make the carrier gradually melt and plasticize.

El cilindro del extrusor suele estar dividido en 4-6 secciones de control de temperatura (sección de alimentación, sección de fusión, sección de mezcla, sección de homogeneización, sección del cabezal de troquel), and the temperature of each section is precisely controlled according to the type of masterbatch (tipo de transportista, pigment type). Por ejemplo, when processing PE masterbatch, the temperature of the feeding section is 100-120℃, the melting section is 160-180℃, the mixing section is 170-190℃, the homogenizing section is 160-180℃, and the die head section is 150-170℃. The precise temperature control can ensure that the carrier is fully melted without thermal decomposition, and the pigments are not decomposed or discolored.

The screw of the twin-screw extruder adopts a modular design, which can freely combine different screw elements (como elementos de transporte, elementos de mezcla, elementos de corte) according to the type of masterbatch. Por ejemplo, when processing masterbatch with high pigment content and easy agglomeration, more mixing elements and shearing elements can be configured to enhance the mixing and dispersing effect; when processing masterbatch with good fluidity, more conveying elements can be configured to improve production efficiency.

2.2.5 Extrusión y Conformación

El completamente derretido, El material mezclado y disperso es empujado hacia el cabezal de la extrusora mediante los tornillos.. The die head of the masterbatch extruder is usually equipped with multiple circular die holes (the number and size of die holes are determined according to the particle size of the masterbatch). The material is extruded from the die head at a high speed to form continuous strip-shaped semi-finished products (the diameter of the strip is usually 2-5mm, que se puede ajustar según las necesidades del cliente).

La temperatura del cabezal del troquel es ligeramente inferior a la de la sección de homogeneización., which can prevent the material from decomposing due to excessive temperature and ensure the shaping effect of the strip. The extrusion speed is controlled according to the type of masterbatch and the particle size requirement, generally ranging from 1-3m/min. The extrusion pressure should be kept stable (fluctuation within ±0.5MPa), which can ensure the uniform diameter of the strip and the consistency of the masterbatch quality.

2.2.6 Enfriamiento y solidificación

The extruded strip-shaped semi-finished products are sent to a cooling device for rapid cooling and solidification. The cooling method for masterbatch is usually water tank cooling, y la temperatura del agua de refrigeración se controla a 20-30 ℃. The length of the cooling water tank is 3-5 metros, y el tiempo de enfriamiento es 2-4 minutos. Rapid cooling can make the strip solidify quickly, maintain the shape and size of the strip, and avoid deformation and adhesion.

It should be noted that the cooling speed should be uniform. If the cooling speed is too fast, the internal stress of the strip will be too large, and the strip will be brittle and easy to break during granulation; if the cooling speed is too slow, the strip will be soft and easy to adhere, affecting the granulation effect. Después de enfriar, the surface of the strip should be dry, smooth and free of bubbles and cracks.

2.2.7 Cutting and Granulation

Después de enfriar y solidificar, the strip is sent to a granulator for cutting to form granular masterbatch products. The granulator is equipped with a rotary knife and a fixed knife, and the cutting speed is adjustable (generalmente 500-1000 rpm). The particle size of the masterbatch is controlled by adjusting the cutting speed and the speed of the strip conveying. The common particle size of masterbatch is 2-5mm (length and diameter are basically the same), which is convenient for mixing with plastic raw materials during later use.

The granulator should be equipped with a screening device to remove unqualified particles (such as too large, too small, agglomerated or broken particles). The qualified particles enter the next process, and the unqualified particles are crushed and recycled (after drying and premixing, they are re-extruded and granulated).

2.2.8 Screening, Inspection and Packaging

The granulated masterbatch is sent to a vibrating screen for screening to further remove unqualified particles and impurities. The vibrating screen is equipped with a multi-layer screen (different mesh sizes), which can screen out masterbatch particles of different specifications according to customer needs.

After screening, the masterbatch needs to undergo quality inspection. The inspection items mainly include: color (uniformidad, consistency with the standard sample), dispersabilidad (observed by microscope or test piece coloring), concentración (tinting strength test), contenido de humedad, particle size distribution, etc.. Only the masterbatch that meets the quality standards can be packaged.

The packaging of masterbatch adopts sealed and moisture-proof packaging (such as plastic woven bags with inner plastic film, aluminum foil bags), and the packaging weight is usually 25kg/bag or 50kg/bag. The packaging bag is marked with the product name, modelo, color, concentración, tipo de transportista, fecha de producción, shelf life, manufacturer and other information. The packaged masterbatch should be stored in a dry, cool and ventilated warehouse, avoiding direct sunlight and moisture, and the shelf life is generally 6-12 meses.

2.3 Key Factors Affecting Masterbatch Twin-Screw Extrusion Effect

The effect of twin-screw extrusion directly affects the quality of masterbatch (dispersabilidad, tinting strength, stability). There are many factors affecting the extrusion effect, incluyendo principalmente las características de la materia prima, formula ratio, premixing effect, extrusion parameters and equipment performance. Dominar estos factores clave y realizar ajustes científicos puede garantizar la estabilidad del efecto de extrusión y la consistencia de la calidad del producto..

2.3.1 Características de la materia prima

el tipo, tamaño de partícula, El contenido de humedad y la pureza de las materias primas tienen un gran impacto en el efecto de extrusión.. For pigments, the particle size should be uniform and fine (20-40 malla), and the agglomeration degree should be low; organic pigments have poor heat resistance, so the extrusion temperature should be strictly controlled; inorganic pigments have high hardness, so the extruder should have good wear resistance. For carriers, the melting point and processing temperature should be consistent with the target plastic raw materials, and the compatibility with pigments should be good. For additives, the type and dosage should be reasonable, and the compatibility with carriers and pigments should be good.

Además, the moisture content of raw materials must be strictly controlled below 0.1%; si el contenido de humedad es demasiado alto, it will cause bubbles and agglomeration in the masterbatch. La pureza de las materias primas también es muy importante.; impurities in raw materials will not only affect the product quality, pero también desgasta el tornillo y el cilindro del extrusor..

2.3.2 Relación de fórmula

The formula ratio of masterbatch (the ratio of pigment, carrier and additive) is the key to determining the quality of the product. The pigment content should be determined according to the coloring requirements and the type of pigment: high-concentration masterbatch (pigment content 50%-80%) can reduce the addition amount and production cost, but requires better dispersibility; low-concentration masterbatch (pigment content 10%-30%) has better dispersibility, but the addition amount is large and the production cost is high.

The dosage of dispersants is generally 1%-5% of the pigment dosage; too little dispersant will lead to poor dispersibility of pigments, and too much dispersant will affect the mechanical properties of the masterbatch and the colored products. The dosage of other additives (compatibilizadores, heat stabilizers, lubricantes) is generally 0.5%-3%, which should be adjusted according to the type of masterbatch and processing requirements. The formula ratio should be strictly controlled, and the error should be within ±1%, to ensure the consistency of product quality between batches.

2.3.3 Premixing Effect

Premixing is the foundation of extrusion processing. The uniformity of premixing directly affects the mixing and dispersing effect of pigments during extrusion. If the premixing is uneven, the pigments cannot be uniformly adhered to the surface of the carrier, resulting in local agglomeration of pigments, uneven mixing of materials during extrusion, and reduced product dispersibility.

To ensure the premixing effect, it is necessary to control the mixing speed (800-1200 rpm), tiempo de mezcla (5-10 minutos) and mixing temperature (40-60℃). For masterbatch with high pigment content, the premixing time can be appropriately extended, and the dispersant can be added first and mixed with the pigment, then mixed with the carrier and other additives. Además, the premixed mixture should be inspected; if there are obvious pigment agglomerates, it should be crushed and remixed.

2.3.4 Parámetros de extrusión

Extrusion parameters are the most important factors affecting the extrusion effect, incluyendo principalmente la velocidad del tornillo, temperatura de extrusión y presión de extrusión.

• Velocidad del tornillo: The screw speed of twin-screw extruders for masterbatch processing generally ranges from 200 a 800 rpm. Cuanto mayor sea la velocidad del tornillo, mayor será la fuerza de corte y la fuerza de fricción recibidas por los materiales, the better the mixing and dispersing effect of pigments, and the higher the production efficiency. Sin embargo, si la velocidad del tornillo es demasiado alta, el tiempo de residencia de los materiales en la cavidad de extrusión es demasiado corto, resulting in incomplete melting of the carrier, insufficient mixing of materials, and uneven dispersibility; si la velocidad del tornillo es demasiado baja, la fuerza de corte y la fuerza de fricción son insuficientes, the pigment agglomerates cannot be fully broken, and the production efficiency is low.
• The screw speed should be adjusted according to the type of masterbatch: for masterbatch with high pigment content and easy agglomeration (such as black masterbatch, white masterbatch), a higher screw speed (500-800 rpm) is needed to ensure the uniform dispersion of pigments; for masterbatch with organic pigments (poor heat resistance), a moderate screw speed (300-500 rpm) is needed to avoid overheating and pigment decomposition.
• Extrusion Temperature: The extrusion temperature is the key to ensuring the melting of the carrier and the stability of the pigment. The temperature of each section of the barrel and die head must be precisely controlled according to the type of masterbatch (tipo de transportista, pigment type). La temperatura de la sección de alimentación es más baja. (slightly higher than the drying temperature of the raw materials), which is mainly to prevent the materials from caking and ensure smooth feeding; la temperatura de la sección de fusión es media, which is mainly to promote the melting and plasticization of the carrier; the temperature of the mixing section is higher, which is mainly to enhance the shear and mixing effect, and promote the uniform dispersion of pigments; the temperature of the homogenizing section is slightly lower than the mixing section, which is mainly to ensure the uniform temperature and viscosity of the materials, and avoid thermal decomposition; La temperatura de la sección del cabezal del troquel es ligeramente inferior a la de la sección de homogeneización., which is to ensure the shaping effect of the strip.
• The temperature control precision should reach ±1℃. Por ejemplo, when processing PP masterbatch with organic pigments, the temperature of each section is: feeding section 110-130℃, melting section 170-190℃, mixing section 180-200℃, homogenizing section 170-190℃, die head section 160-180℃. If the temperature is too high, the pigment will decompose and the carrier will degrade; if the temperature is too low, the carrier will not be fully melted, and the pigment cannot be uniformly dispersed.
• Presión de extrusión: The extrusion pressure of masterbatch twin-screw extrusion generally ranges from 5 to 12MPa. La presión en la cavidad de extrusión está determinada principalmente por la relación de compresión del tornillo., el tamaño del orificio del troquel y la velocidad del tornillo. Cuanto mayor sea la presión de extrusión, mejor será el efecto de mezcla y dispersión de los materiales, and the denser the strip. Sin embargo, si la presión es demasiado alta, aumentará el consumo de energía y el desgaste del equipo, e incluso causar que el cabezal del troquel se bloquee; si la presión es demasiado baja, Los materiales no se pueden comprimir ni mezclar completamente., the strip is loose, and the dispersibility is poor.
• The extrusion pressure should be adjusted according to the type of masterbatch and the die head size: for masterbatch with high pigment content and poor fluidity, a higher extrusion pressure is needed; for masterbatch with good fluidity, a moderate extrusion pressure is sufficient. The extrusion pressure should be kept stable, and the fluctuation should be within ±0.5MPa, to ensure the uniform diameter of the strip and the consistency of the masterbatch quality.

2.3.5 Equipment Performance

The performance of the twin-screw extruder directly determines the extrusion effect. The key performance indicators of the extruder include mixing and dispersing capacity, temperature control precision, resistencia al desgaste, conveying capacity and intelligent control capacity. La serie completa de extrusoras de Zhuoyue (HTS BÁSICO/PLUS/SUPER, ZTE, HTE) están especialmente diseñados para el procesamiento de masterbatch, with excellent performance in these aspects, which can effectively meet the processing needs of different types of masterbatch.

3. Zhuoyue’s Full Series Extruders: Professional Solutions for Masterbatch Processing

Zhuoyue has long been engaged in the research, development and production of high-performance twin-screw extruders, and has accumulated rich experience in the field of masterbatch processing. According to the processing characteristics of masterbatch (alto contenido de pigmento, easy agglomeration of pigments, strict temperature control requirements, high wear resistance requirements) and the diverse needs of manufacturers (different production scales, different masterbatch types, different application fields), Zhuoyue has launched a full series of extruders suitable for masterbatch processing, including HTS BASIC series, HTS PLUS series, HTS SUPER series, Serie ZTE y serie HTE. Cada serie tiene sus propias características de rendimiento y escenarios de adaptación específicos., que puede proporcionar soluciones de procesamiento personalizadas y eficientes para fabricantes de masterbatch de diferentes escalas.

3.1 Principales ventajas de las extrusoras de Zhuoyue para el procesamiento de Masterbatch

Ya sea la serie HTS SUPER de gama alta o la rentable serie ZTE, Todas las extrusoras de Zhuoyue tienen las siguientes ventajas principales, que están especialmente optimizados para el procesamiento de masterbatch, asegurando alta calidad, producción eficiente y estable:

3.1.1 Excelente efecto de mezcla y dispersión

El requisito principal del procesamiento de masterbatch es la dispersión uniforme de los pigmentos.. Todas las extrusoras de doble tornillo de Zhuoyue adoptan una estructura co-rotativa entrelazada., con un paso de tornillo razonable, Diseño de relación de avance y compresión.. El entrelazado y la rotación de los tornillos gemelos pueden generar una fuerte fuerza de corte y fuerza de amasado., which can fully break the agglomerates of pigments (even small agglomerates of 100μm above), and make the pigments uniformly dispersed in the carrier. The mixing uniformity of the extruders can reach more than 95%, which is much higher than that of ordinary twin-screw extruders (85%-90%).

Además, the screws of all series of extruders adopt a modular design, which can freely combine different types of screw elements (elementos transportadores, elementos de mezcla, elementos de corte) according to the type of masterbatch (such as color masterbatch, white masterbatch, black masterbatch) and pigment characteristics. Por ejemplo, when processing black masterbatch with carbon black (easy agglomeration), more mixing elements and shearing elements can be configured to enhance the mixing and dispersing effect; when processing color masterbatch with organic pigments (poor heat resistance), more conveying elements and fewer shearing elements can be configured to shorten the residence time and avoid pigment decomposition.

3.1.2 Precise Temperature Control, Avoiding Pigment Decomposition

Masterbatch processing has strict requirements on temperature control, and the temperature fluctuation must be controlled within ±1℃ to avoid pigment decomposition and carrier degradation. All Zhuoyue’s extruders adopt an advanced intelligent temperature control system, which is composed of high-precision temperature sensors, heating elements and cooling elements. The barrel is divided into 4-6 independent temperature control sections, and the temperature of each section can be precisely adjusted and controlled in real time.

The temperature control system is equipped with a real-time monitoring and alarm function: if the temperature of any section exceeds the set range, el sistema emitirá un mensaje de alarma a tiempo, and automatically adjust the heating power or start the cooling system to return the temperature to the set range. Además, the barrel of the extruder adopts a double-layer jacket design, which can realize rapid heating and cooling, and improve the response speed of temperature control. The die head is also equipped with an independent temperature control device, which ensures the uniform temperature of the die head and the stable shaping of the strip.

3.1.3 Alta resistencia al desgaste, Larga vida útil

Inorganic pigments such as titanium dioxide and carbon black have high hardness, which will cause serious wear to the screw and barrel of the extruder during processing. Zhuoyue’s extruders adopt high-quality wear-resistant materials and advanced manufacturing technology to ensure the wear resistance of the core components.

The screws and barrels of HTS PLUS series, HTS SUPER series and HTE series are made of imported wear-resistant alloy steel (como 38CrMoAlA), y someterse a un tratamiento compuesto bimetálico o un tratamiento de revestimiento con láser. The surface hardness of the screws and barrels can reach ≥65 HRC (HTS PLUS series, Serie HTE) y ≥70 HRC (HTS SUPER series), que tiene una resistencia al desgaste y a la corrosión extremadamente fuertes, and can effectively resist the wear caused by high-hardness pigments. The service life of the screws and barrels is 2-3 veces mayor que el de las extrusoras ordinarias, reduciendo la frecuencia de reemplazo de componentes y el costo de mantenimiento del equipo.

The screws and barrels of HTS BASIC series and ZTE series are made of high-quality wear-resistant alloy steel with nitriding treatment, and the surface hardness can reach ≥60 HRC, which can meet the processing needs of ordinary masterbatch (pigment content ≤50%) and has a reasonable cost performance.

3.1.4 Alta eficiencia de producción, Energy Saving and Environmental Protection

Zhuoyue’s extruders adopt a high-torque gearbox and an optimized screw structure, which have strong conveying capacity and high production efficiency. Compared with ordinary twin-screw extruders, the production efficiency of Zhuoyue’s extruders can be increased by 20%-50%. Por ejemplo, the production capacity of HTS SUPER series extruders can reach 1000-3000kg/h, which is suitable for large-scale mass production; the production capacity of ZTE series extruders is 100-500kg/h, which is suitable for small and medium-sized batch production.

Además, all Zhuoyue’s extruders adopt high-efficiency motors and energy-saving heating elements, que puede reducir el consumo de energía en 15%-20% en comparación con extrusoras ordinarias. The extruders are equipped with a closed structure, which can reduce the emission of dust and volatile substances during processing, meeting the environmental protection requirements of the masterbatch industry.

3.1.5 Intelligent Control, Easy Operation and Maintenance

All Zhuoyue’s extruders adopt a PLC intelligent control system and a touch screen operation interface, que es simple e intuitivo, fácil de operar. The system can store multiple sets of product formulas and processing parameters (arriba a 100 sets), and when producing different types of masterbatch, only the corresponding formula and parameters need to be called, sin depuración repetida, which saves time and improves production efficiency.

The system is also equipped with a real-time monitoring function, which can monitor the key parameters of the extrusion process (such as temperature, presión, velocidad del tornillo, velocidad de alimentación) in real time, and record the production data (such as output, processing time) for later query and analysis. For the HTS SUPER series extruders, we also provide a cloud control function, which can realize remote parameter adjustment, production data monitoring and predictive maintenance of equipment, realizing intelligent production management.

Además, the extruders adopt a reasonable structural design, which makes the maintenance more convenient. The screws, barrels and die heads can be disassembled and assembled quickly, which reduces the maintenance time and labor intensity. Zhuoyue’s after-sales service team will provide professional installation, Servicios de puesta en marcha y formación para clientes., Garantizar que los clientes puedan utilizar el equipo sin problemas..

3.1.6 Amplia gama de aplicaciones, Strong Adaptability

Zhuoyue’s full series of extruders have a wide application range, which can adapt to the processing needs of various types of masterbatch, including color masterbatch, white masterbatch, black masterbatch, ordinary masterbatch, functional masterbatch (masterbatch retardante de llama, masterbatch antiestático), and masterbatch with different carriers (educación física, PÁGINAS, CLORURO DE POLIVINILO, Pensilvania, MASCOTA, etc.). The extruders can also adapt to the processing of masterbatch with different pigment contents (10%-80%), and can meet the processing needs of different application fields (fibras, películas, moldeo por soplado, extrusión, moldeo por inyección).

Whether it is a small and medium-sized manufacturer producing ordinary masterbatch, or a large-scale manufacturer producing high-end functional masterbatch, Zhuoyue can provide suitable extruder solutions. Además, the extruders can be matched with different auxiliary equipment (como mezcladores de alta velocidad, dryers, coolers, granulators, screening machines, packaging machines) to form a complete automatic production line, realizing continuous production from raw material pretreatment to product packaging.

3.2 Detailed Introduction of Zhuoyue’s Extruder Series and Their Adaptation to Masterbatch Processing

Zhuoyue’s extruder series for masterbatch processing include HTS BASIC, HTS PLUS, HTS SUPER, ZTE and HTE, each series has its own unique performance characteristics and targeted adaptation scenarios. Manufacturers can select the appropriate extruder series according to their own production scale, product type, masterbatch concentration, application field and budget.

3.2.1 Extrusoras Serie HTS BASIC: Flexible and Cost-Effective Choice for Ordinary Masterbatch

The HTS BASIC series extruders are a cost-effective product series designed for small and medium-sized masterbatch manufacturers or manufacturers that mainly produce ordinary masterbatch. Esta serie de extrusoras utiliza cajas de engranajes de par medio de los principales fabricantes europeos., que tienen las ventajas de un rendimiento estable, bajo ruido, alta eficiencia y larga vida útil. The specific torque of the extruders is 10-12Nm/cm³, which can meet the processing needs of ordinary masterbatch (pigment content ≤50%), such as PE/PP color masterbatch, low-concentration white masterbatch and black masterbatch.

En términos de diseño estructural., the HTS BASIC series extruders adopt a twin-screw parallel co-rotating structure, con un diámetro de tornillo que oscila entre 30 mm y 65 mm, y una relación de compresión de 4～8, que se puede ajustar según el tipo de masterbatch. El cañón está fabricado de acero aleado resistente al desgaste con tratamiento de nitruración., y el tornillo está hecho de acero de aleación resistente al desgaste y a la corrosión, que tiene buena resistencia al desgaste. La extrusora está equipada con un sistema de control PLC y una interfaz de operación con pantalla táctil., que puede realizar la alimentación automática, control automático de temperatura, control automático de presión y corte automático, y es simple y fácil de operar.

La capacidad de producción de las extrusoras de la serie HTS BASIC va desde los 100kg/h hasta los 500kg/h., que es adecuado para pequeños y medianos fabricantes de masterbatch que producen principalmente masterbatch ordinarios para películas., productos de moldeo por inyección y extrusión. One of the biggest advantages of this series is that it can provide flexible options through different configuration combinations. Customers can choose different screw elements, morir cabezas, feeding devices and post-processing equipment according to their own product types and production needs, Para formar una línea de producción adecuada a sus propias necesidades.. The HTS BASIC series extruders have a reasonable price, which can help small and medium-sized manufacturers reduce the initial investment cost while ensuring the basic processing quality of masterbatch. It is an ideal choice for enterprises that are just entering the masterbatch industry or have limited production scale and budget. Además, this series of extruders has simple operation and low maintenance cost, and its after-sales service support is consistent with other high-end series, which can fully meet the daily production needs of small and medium-sized manufacturers.

3.2.2 HTS PLUS Series Extruders: High-Torque Solution for Engineering Plastics and Filler Masterbatch

The HTS PLUS series extruders are positioned as mid-to-high-end products, specially developed for masterbatch processing scenarios with higher requirements, such as engineering plastic masterbatch and filler masterbatch. Different from the HTS BASIC series, this series adopts high-torque gearboxes independently developed and manufactured by Zhuoyue, with a specific torque of 13-16Nm/cm³, which can provide stronger shear force and kneading force, effectively solving the processing difficulties of high-viscosity, high-hardness masterbatch materials.

In terms of core components, the screws and barrels of the HTS PLUS series are made of imported wear-resistant alloy steel and undergo bimetallic composite treatment. The surface hardness reaches ≥65 HRC, which has excellent wear resistance and corrosion resistance, and can easily cope with the wear caused by filler masterbatch (como el carbonato de calcio, talcum powder filled masterbatch) and engineering plastic masterbatch (como PA, PC masterbatch). The screw adopts a modular design, and is equipped with enhanced mixing elements and shearing elements, which can fully disperse the fillers and pigments in the carrier, ensuring the uniformity and stability of the masterbatch. The barrel is divided into 5-6 secciones de control de temperatura, with a temperature control precision of ±1℃, which can accurately control the processing temperature of engineering plastics (200-280℃) and avoid material decomposition.

The production capacity of the HTS PLUS series extruders ranges from 300kg/h to 1200kg/h, which is suitable for medium-sized and large-scale masterbatch manufacturers that produce engineering plastic masterbatch, masterbatch de relleno, high-concentration color masterbatch (pigment content 50%-70%) y otros productos. Por ejemplo, in the processing of PA engineering plastic masterbatch, the HTS PLUS series can rely on its high torque and precise temperature control to ensure that the PA carrier is fully melted, and the pigments and functional additives are uniformly dispersed, avoiding the problems of color spots, streaks and poor mechanical properties of the masterbatch. In the processing of filler masterbatch, its strong shear force can fully disperse the filler particles (which are easy to agglomerate) in the carrier, improving the compatibility between the filler and the carrier, and ensuring the processing performance of the masterbatch when mixed with downstream plastic raw materials.

Además, the HTS PLUS series extruders are equipped with an upgraded PLC intelligent control system, which can realize more precise parameter control and data monitoring. The system can automatically adjust the screw speed, feeding speed and extrusion pressure according to the material viscosity and processing effect, ensuring the stability of product quality between batches. The extruder is also equipped with a forced feeding device and a vacuum exhaust device: the forced feeding device can ensure the smooth feeding of high-viscosity materials; the vacuum exhaust device can effectively remove moisture, volatile substances and air in the materials, avoiding bubbles and pores in the masterbatch, and improving the density and quality of the masterbatch. This series of extruders balances performance and cost, and is suitable for manufacturers that need to improve product quality and expand production scale.

3.2.3 HTS SUPER Series Extruders: The Pinnacle of Zhuoyue’s Technology for High-End Masterbatch

As Zhuoyue’s highest-end extruder series, the HTS SUPER series represents the advanced level of China’s twin-screw extruder development, specially designed for high-end, high-demand masterbatch processing scenarios, such as high-concentration functional masterbatch, special engineering plastic masterbatch (such as PBT, POM, LCP), and masterbatch for high-end downstream fields (new energy vehicles, dispositivos médicos, high-end electronics).

The core highlight of the HTS SUPER series is the adoption of Zhuoyue’s latest independently developed ultra-high torque transmission device, with a specific torque of 17-20Nm/cm³, which is far higher than that of the HTS PLUS series. This ultra-high torque design enables the extruder to cope with the processing of ultra-high viscosity, ultra-high hardness masterbatch materials, such as masterbatch with high filler content (filler content above 60%) and special engineering plastic masterbatch with high melting point and high viscosity. Al mismo tiempo, aiming at the high torque and high speed characteristics of this series, Zhuoyue has carried out a comprehensive optimization of the structural design of all key components of the extruder: the screw adopts a new type of wear-resistant alloy steel and undergoes laser cladding treatment, with a surface hardness of ≥70 HRC, which has extremely strong wear resistance and service life (3-4 veces mayor que el de las extrusoras ordinarias); the barrel adopts a double-layer jacket + forced cooling structure, which can realize rapid temperature adjustment and precise control, avoiding local overheating of materials during high-speed, high-torque processing; the gearbox adopts a precision planetary gear structure, with low noise, high efficiency and stable operation, which can withstand long-term high-load work.

In terms of mixing and dispersing effect, the HTS SUPER series is equipped with a new type of multi-stage mixing screw combination, including high-shear mixing elements, kneading blocks and dispersing elements, which can generate multi-directional shear force and kneading force, fully breaking the agglomerates of pigments and fillers (even agglomerates below 50μm), and making the pigments, fillers and carriers uniformly mixed. The mixing uniformity of the masterbatch can reach more than 98%, which is suitable for the processing of high-concentration, high-dispersibility masterbatch (pigment content 70%-80%). Además, this series of extruders adopts a variable frequency speed regulation system with high precision, and the screw speed can be adjusted in the range of 300-1000 rpm, which can be flexibly adjusted according to the type of masterbatch and processing requirements, ensuring the best processing effect.

The production capacity of the HTS SUPER series extruders ranges from 1000kg/h to 3000kg/h, which is suitable for large-scale, high-standard masterbatch manufacturers that focus on high-end markets. Por ejemplo, in the processing of masterbatch for new energy vehicle parts (such as automotive interior and exterior parts, battery shell masterbatch), the HTS SUPER series can ensure that the masterbatch has excellent weather resistance, high temperature resistance and dispersibility, meeting the strict quality requirements of automotive manufacturers; in the processing of medical grade masterbatch (such as masterbatch for medical catheters, contenedores medicos), it can realize clean production, avoid material pollution, and ensure that the masterbatch meets the medical grade environmental protection standards. This series of extruders is also equipped with an intelligent cloud control system, which can realize remote parameter adjustment, production data monitoring, fault early warning and predictive maintenance. Manufacturers can monitor the production status of the equipment in real time through mobile phones or computers, realize intelligent production management, and greatly improve production efficiency and management level.

3.2.4 ZTE Series Extruders: Cost-Effective Choice for Universal Masterbatch Processing

The ZTE series extruders are positioned as cost-effective products, specially designed for manufacturers that need to balance processing quality and cost, and mainly produce universal ordinary masterbatch. This series of extruders has excellent cost performance, and its designed parameters can meet the processing needs of most common masterbatch materials (educación física, PÁGINAS, Mezcla maestra de PVC, low-concentration color masterbatch, black masterbatch and white masterbatch with pigment content ≤50%).

En términos de diseño estructural., the ZTE series adopts a twin-screw parallel co-rotating structure, with a screw diameter ranging from 25mm to 65mm, and a specific torque of 8-11Nm/cm³, which can provide sufficient shear force and conveying capacity for ordinary masterbatch processing. The screws and barrels are made of high-quality wear-resistant alloy steel with nitriding treatment, and the surface hardness reaches ≥60 HRC, which can meet the wear requirements of ordinary pigments (such as organic pigments, low-hardness inorganic pigments) and has a long service life. The barrel is divided into 4 secciones de control de temperatura, with a temperature control precision of ±2℃, which can accurately control the processing temperature of ordinary masterbatch (150-220℃), avoiding pigment decomposition and carrier degradation.

The production capacity of the ZTE series extruders ranges from 50kg/h to 400kg/h, which is suitable for small and medium-sized masterbatch manufacturers, small workshops and enterprises that need to produce small batches of multi-variety masterbatch. This series of extruders has the advantages of simple structure, fácil operación, low energy consumption and low maintenance cost. The operation interface adopts a simple touch screen design, which is easy to learn and master, and is suitable for operators with little experience. Además, the ZTE series can also be flexibly configured according to customer needs, such as adding a forced feeding device, a vacuum exhaust device or a special die head, to meet the personalized processing needs of different customers. Although the ZTE series is cost-effective, its core performance indicators (such as mixing uniformity, temperature control precision) are far higher than those of ordinary extruders on the market, which can ensure that the produced masterbatch has uniform coloring, stable performance and meets the basic use requirements of downstream customers. It is an ideal choice for enterprises with limited budget and mainly producing ordinary masterbatch.

3.2.5 HTE Series Extruders: High-Performance and Cost-Effective Integrated Solution

The HTE series extruders integrate the advantages of high performance and cost-effectiveness, aiming at medium-sized masterbatch manufacturers that need to improve production efficiency and product quality while controlling costs. This series of extruders is designed to balance performance, efficiency and cost, and is suitable for a variety of masterbatch processing scenarios, including high-concentration color masterbatch (pigment content 50%-60%), ordinary functional masterbatch (masterbatch retardante de llama, masterbatch antiestático) and masterbatch for films, blow molding and injection molding products.

In terms of core performance, the HTE series adopts a high-torque gearbox independently developed by Zhuoyue, with a specific torque of 12-14Nm/cm³, which is higher than that of the HTS BASIC and ZTE series, and can provide stronger shear force and kneading force, ensuring the uniform dispersion of pigments and additives. The screws adopt a modular design, and are equipped with a combination of conveying elements, mixing elements and shearing elements, which can be flexibly adjusted according to the type of masterbatch, improving the adaptability of the extruder. The screws and barrels are made of imported wear-resistant alloy steel with bimetallic composite treatment, and the surface hardness reaches ≥65 HRC, which has excellent wear resistance and can cope with the processing of high-hardness pigments (such as titanium dioxide, negro carbón) and low-content filler masterbatch.

The biggest advantage of the HTE series is that it can reduce energy consumption while improving production efficiency. This series of extruders adopts an optimized screw structure and a high-efficiency energy-saving motor, que puede reducir el consumo de energía en 18%-25% compared with ordinary extruders of the same type. Al mismo tiempo, its production capacity ranges from 200kg/h to 800kg/h, which is 15%-20% higher than that of the HTS BASIC series of the same specification. The barrel is divided into 5 secciones de control de temperatura, with a temperature control precision of ±1℃, which can accurately control the processing temperature, avoid material waste caused by overheating or insufficient melting, and further reduce production costs. Además, the HTE series is equipped with a PLC intelligent control system, which can realize automatic parameter control, data monitoring and formula storage, ensuring the stability of product quality between batches. The extruder is also equipped with a vacuum exhaust device and a forced feeding device, which can improve the quality of masterbatch and ensure the smooth progress of production.

The HTE series is suitable for medium-sized masterbatch manufacturers that are in the stage of expanding production scale and upgrading product quality. It can not only meet the processing needs of high-quality masterbatch, but also control the production cost effectively, helping enterprises improve their market competitiveness. Compared with the HTS PLUS series, the HTE series has a more reasonable price; compared with the ZTE series, it has better performance and higher production efficiency, which is a cost-effective choice between mid-range and high-end products.

4. Wide Application Fields of Masterbatch and Matching Zhuoyue Extruder Solutions

As an indispensable core material in the plastics industry, masterbatch is widely used in fibers, películas, moldeo por soplado, extrusion molding, injection molding and other fields. Different application fields have different requirements on the performance of masterbatch (como la dispersabilidad, resistencia a la temperatura, color fastness) and production efficiency, which also determines the selection of twin-screw extruders. Zhuoyue’s full series of extruders can provide targeted solutions for different application fields, ensuring that the produced masterbatch meets the specific requirements of downstream products. The following is a detailed introduction to the application fields of masterbatch and the matching Zhuoyue extruder series.

4.1 Fiber Field: High-Dispersibility and Color Fastness Requirements

Masterbatch in the fiber field is mainly used for coloring chemical fibers, como fibra de poliéster, fibra de nailon, polypropylene fiber, etc., and the final products include carpets, textiles, cushions, non-woven fabrics, etc.. This field has extremely high requirements on masterbatch: primero, alta dispersabilidad. The fiber diameter is very small (usually a few microns to dozens of microns), and if the pigments in the masterbatch are not uniformly dispersed, it will cause color spots, streaks and uneven fineness of the fiber, affecting the appearance and quality of the fiber product; segundo, high color fastness. The fiber products need to go through spinning, weaving, dyeing and finishing and other processes, and the masterbatch must have good washing fastness, light fastness and friction fastness, avoiding color fading and discoloration; tercero, low impurity content. Impurities in the masterbatch will cause breakage of the fiber during spinning, reducing the yield of the fiber.

According to the requirements of the fiber field, the suitable Zhuoyue extruder series are HTS PLUS series, HTS SUPER series and HTE series. For high-end fiber masterbatch (such as high-grade textile fiber, carpet fiber), the HTS SUPER series is recommended. Its ultra-high mixing uniformity (≥98%) can ensure that the pigments are uniformly dispersed in the carrier, avoiding color spots and streaks of the fiber; the high-torque and precise temperature control can ensure the stability of the masterbatch performance, improving the color fastness of the fiber. For medium-grade fiber masterbatch (such as ordinary textile fiber, non-woven fabric), the HTS PLUS series and HTE series are recommended. Their high mixing and dispersing effect can meet the basic requirements of fiber masterbatch, and the cost performance is higher. For small-batch, low-cost fiber masterbatch, the HTS BASIC series can also be selected, which can ensure the basic dispersibility and color fastness.

4.2 Film Field: High Transparency and Uniform Coloring Requirements

Masterbatch in the film field is mainly used for coloring plastic films, como bolsas de compras, casting de peliculas, películas multicapa, películas de embalaje, películas agrícolas, etc.. The key requirements of this field for masterbatch are: primero, high transparency. For transparent or translucent films (como películas para embalaje de alimentos, agricultural mulch films), the masterbatch must have good transparency, avoiding affecting the appearance and visibility of the packaged products; segundo, coloración uniforme. The film surface must be uniform in color, without color spots, color streaks and color difference, ensuring the aesthetic property of the film; tercero, good processing fluidity. The film extrusion speed is fast, and the masterbatch must have good fluidity, which is conducive to the uniform mixing of the masterbatch and the film base material, and avoiding affecting the film forming efficiency.

For the film field, the suitable Zhuoyue extruder series are HTS BASIC series, HTE series and HTS PLUS series. For ordinary film masterbatch (como bolsas de compras, ordinary packaging films), the HTS BASIC series and HTE series are recommended. Their good mixing and dispersing effect can ensure uniform coloring of the film, and the good processing fluidity can match the high-speed extrusion of the film. For high-end film masterbatch (como películas para embalaje de alimentos, multi-layer composite films), the HTS PLUS series is recommended. Its precise temperature control can avoid the decomposition of pigments and carriers, ensuring the transparency and safety of the film; the enhanced mixing elements can further improve the dispersibility of the masterbatch, making the film surface more smooth and uniform. For ultra-high transparent film masterbatch (such as PET packaging films), the HTS SUPER series can be selected, which can achieve ultra-high dispersibility of pigments, ensuring the transparency and clarity of the film.

4.3 Blow Molding Field: Good Fluidity and Dimensional Stability Requirements

Masterbatch in the blow molding field is mainly used for coloring blow molding products, como envases médicos y cosméticos, contenedores de pintura y aceite lubricante, botellas de bebidas, plastic barrels, etc.. The requirements of this field for masterbatch are: primero, good processing fluidity. Blow molding products need to be formed by high-temperature blow molding, and the masterbatch must have good fluidity, which is conducive to the uniform distribution of the masterbatch in the parison, avoiding uneven wall thickness and color difference of the product; segundo, good dimensional stability. The blow molding products have strict requirements on dimensional accuracy, and the masterbatch must have stable performance, avoiding the deformation of the product due to uneven shrinkage; tercero, protección ambiental. Especially for medical and cosmetic containers, the masterbatch must meet environmental protection standards, non-toxic and harmless, without volatile substances.

For the blow molding field, the suitable Zhuoyue extruder series are ZTE series, HTS BASIC series and HTE series. For ordinary blow molding masterbatch (such as lubricating oil containers, plastic barrels), the ZTE series and HTS BASIC series are recommended. Their reasonable screw structure and temperature control system can ensure the good fluidity and stability of the masterbatch, meeting the basic requirements of blow molding products. For medium-grade blow molding masterbatch (such as cosmetic containers, botellas de bebidas), the HTE series is recommended. Its high production efficiency and energy-saving advantages can reduce production costs, and the good mixing and dispersing effect can ensure uniform coloring and dimensional stability of the product. For high-end blow molding masterbatch (such as medical containers), the HTS PLUS series and HTS SUPER series are recommended. Their high-precision temperature control and clean production design can ensure that the masterbatch meets medical grade standards, and the stable performance can ensure the dimensional accuracy and safety of the product.

4.4 Extrusion Molding Field: High Dimensional Stability and Wear Resistance Requirements

Masterbatch in the extrusion molding field is mainly used for coloring extrusion products, como hojas, tubería, alambres y cables, perfiles, etc.. The key requirements of this field for masterbatch are: primero, high dimensional stability. Extrusion products (como tuberías, perfiles) have strict requirements on dimensional accuracy, and the masterbatch must have stable performance, avoiding the deformation and color difference of the product due to uneven shrinkage; segundo, good wear resistance. For products such as pipes and wires and cables that need to withstand friction and extrusion, the masterbatch must have good wear resistance, ensuring the service life of the product; tercero, good weather resistance. For outdoor extrusion products (such as building profiles, outdoor pipes), the masterbatch must have good weather resistance, avoiding color fading and performance degradation under sunlight and rain.

For the extrusion molding field, the suitable Zhuoyue extruder series are HTS PLUS series, HTE series and HTS SUPER series. For ordinary extrusion masterbatch (such as indoor sheets, ordinary pipes), the HTE series and HTS BASIC series are recommended. Their good mixing and dispersing effect can ensure uniform coloring of the product, and the stable performance can ensure the dimensional accuracy of the product. For medium-grade extrusion masterbatch (such as wires and cables, building profiles), the HTS PLUS series is recommended. Its high-torque gearbox and wear-resistant screw/barrel can cope with the processing of high-hardness, high-viscosity masterbatch, ensuring the wear resistance and weather resistance of the product. For high-end extrusion masterbatch (such as high-temperature resistant pipes, outdoor high-grade profiles), the HTS SUPER series is recommended. Its ultra-high torque and precise temperature control can ensure the stable performance of the masterbatch, and the enhanced wear resistance can further extend the service life of the product.

4.5 Injection Molding Field: High Dispersibility and Batch Stability Requirements

Masterbatch in the injection molding field is the most widely used, mainly used for coloring injection molding products, como piezas de automóviles, productos electronicos, materiales de construcción, electrodomésticos, muebles, juguetes, etc.. The requirements of this field for masterbatch are diverse, but the core requirements are: primero, alta dispersabilidad. Injection molding products have complex shapes and small sizes, and the masterbatch must have high dispersibility, avoiding color spots, color streaks and uneven coloring of the product; segundo, good batch stability. Injection molding products are usually produced in large batches, and the masterbatch must have stable performance, ensuring no color difference between batches of products; tercero, targeted functional requirements. Por ejemplo, automotive parts require masterbatch with high temperature resistance and flame retardancy, electronic products require masterbatch with antistatic performance, and toys require masterbatch with non-toxic and environmental protection performance.

For the injection molding field, Zhuoyue’s full series of extruders can provide corresponding solutions according to different product levels. For ordinary injection molding masterbatch (such as toys, ordinary home appliances), the ZTE series and HTS BASIC series are recommended. Their cost-effective advantages can reduce production costs, and the basic mixing and dispersing effect can meet the requirements of ordinary products. For medium-grade injection molding masterbatch (such as electronic products, ordinary automotive parts), the HTE series and HTS PLUS series are recommended. Their high mixing and dispersing effect and batch stability can ensure the quality of the product, and the targeted functional masterbatch processing capacity can meet the special requirements of the product. For high-end injection molding masterbatch (such as high-grade automotive parts, precision electronic products), the HTS SUPER series is recommended. Its ultra-high dispersibility, batch stability and high-temperature resistance can meet the strict quality requirements of high-end products, and the intelligent control system can ensure the efficiency and stability of large-scale production.

5. Common Problems and Solutions in Masterbatch Twin-Screw Extrusion Processing

In the actual production process of masterbatch, debido a la influencia de las materias primas., fórmula, processing parameters and equipment performance, A menudo ocurren varios problemas., which affect the quality of masterbatch and production efficiency. Based on years of industry experience, Zhuoyue summarizes the common problems in masterbatch twin-screw extrusion processing, analyzes the causes in detail, and provides corresponding solutions, which can help manufacturers quickly solve production problems and improve production efficiency and product quality.

5.1 Common Problem 1: Poor Dispersibility of Masterbatch, Color Spots and Streaks in Products

This is the most common problem in masterbatch processing, which is mainly manifested in uneven coloring of the masterbatch, obvious pigment agglomerates, and color spots and streaks in the colored plastic products. The main causes and solutions are as follows:

5.1.1 Main Causes:

• (1) Raw material problems: The pigment particle size is too large, the agglomeration degree is high, and the drying is insufficient; the compatibility between the pigment and the carrier is poor; the dispersant dosage is insufficient or the type is improper.
• (2) Premixing problems: The mixing speed is too low, the mixing time is too short, the mixing temperature is improper, resulting in uneven premixing of raw materials.
• (3) Extrusion parameter problems: The screw speed is too low, the shear force is insufficient, and the pigment agglomerates cannot be fully broken; the extrusion temperature is too low, the carrier is not fully melted, and the pigment cannot be uniformly dispersed.
• (4) Equipment problems: The screw mixing elements are insufficient or worn; the barrel and screw are worn, resulting in reduced shear force; the die head is blocked, affecting the uniform extrusion of materials.

5.1.2 Soluciones:

• (1) Optimizar las materias primas: Select pigments with small particle size and low agglomeration degree, and dry them thoroughly (moisture content ≤0.1%); select carriers compatible with pigments; replace appropriate dispersants and increase the dosage appropriately (dentro 1%-5% of the pigment dosage).
• (2) Improve premixing effect: Increase the mixing speed to 800-1200 rpm, extend the mixing time to 5-10 minutos, and control the mixing temperature at 40-60℃; for high-concentration masterbatch, add dispersant first and mix with pigment, then mix with carrier and other additives.
• (3) Ajustar los parámetros de extrusión: Aumente la velocidad del tornillo adecuadamente (500-800 rpm for high-concentration masterbatch), improve the shear force; increase the extrusion temperature appropriately to ensure that the carrier is fully melted (adjust according to the carrier type).
• (4) Mantener el equipo: Replace worn screw mixing elements, barrel and screw; clean the die head regularly to avoid blockage; check the equipment regularly to ensure that the screw and barrel are properly matched.

5.2 Common Problem 2: Pigment Decomposition and Discoloration of Masterbatch

This problem is mainly manifested in the discoloration of the masterbatch (such as yellowing, oscurecimiento), the color is inconsistent with the standard sample, and even peculiar smell is generated. It is mostly caused by overheating of the material during extrusion processing, which is common in organic pigment masterbatch and engineering plastic masterbatch. The main causes and solutions are as follows:

5.2.1 Main Causes:

• (1) La temperatura de extrusión es demasiado alta: The temperature of the mixing section, homogenizing section or die head is too high, exceeding the heat resistance limit of the pigment or carrier.
• (2) The residence time of the material is too long: The screw speed is too low, the compression ratio is too large, resulting in the material staying in the extrusion cavity for too long (más que 3 minutos), and thermal decomposition occurs.
• (3) Poor heat dissipation of the equipment: The cooling system of the barrel fails, resulting in local overheating of the barrel.
• (4) Raw material problems: The heat resistance of the pigment is poor, or the carrier is easy to degrade at high temperature.

5.2.2 Soluciones:

• (1) Adjust extrusion temperature: Reduce the temperature of the mixing section, homogenizing section and die head appropriately, and control it within the heat resistance range of the pigment and carrier (150-220℃ for ordinary masterbatch, 200-280℃ for engineering plastic masterbatch); check the temperature sensor regularly to ensure accurate temperature control.
• (2) Shorten the residence time: Aumente la velocidad del tornillo adecuadamente, reduce the compression ratio of the screw, and ensure that the residence time of the material in the extrusion cavity is 1-3 minutos.
• (3) Maintain the cooling system: Check the cooling water circulation system regularly, clean the cooling pipe, and ensure that the barrel can dissipate heat normally; replace the faulty cooling element in time.
• (4) Optimizar las materias primas: Select pigments with good heat resistance (such as inorganic pigments for high-temperature processing); select carriers with stable performance and not easy to degrade; add appropriate heat stabilizers (0.5%-3%) to prevent pigment decomposition and carrier degradation.

5.3 Common Problem 3: High Wear of Screw and Barrel, Short Service Life

This problem is common in the processing of white masterbatch, black masterbatch and filler masterbatch, which is mainly manifested in the rapid wear of the screw and barrel, reduced shear force and mixing capacity of the extruder, and increased maintenance cost. The main causes and solutions are as follows:

5.3.1 Main Causes:

• (1) Raw material problems: The pigment or filler has high hardness (such as titanium dioxide, negro carbón, carbonato de calcio), and the particle size is too large, which causes severe wear to the screw and barrel.
• (2) Extrusion parameter problems: The screw speed is too high, the shear force is too large, and the friction between the material and the screw/barrel is increased; the extrusion pressure is too high, which increases the wear of the screw and barrel.
• (3) Equipment problems: The screw and barrel are made of materials with poor wear resistance, or the processing technology is improper; the screw and barrel are not properly matched, resulting in uneven stress and increased wear.

5.3.2 Soluciones:

• (1) Optimizar las materias primas: Select pigments or fillers with small particle size (20-40 malla) and low hardness; crush and sieve the raw materials to remove large particles; add appropriate lubricants (0.5%-2%) to reduce the friction between the material and the screw/barrel.
• (2) Ajustar los parámetros de extrusión: Reduce the screw speed and extrusion pressure appropriately, and control the shear force within a reasonable range; avoid long-term high-speed and high-pressure operation of the equipment.
• (3) Select high-wear-resistant equipment: Select extruders with high-wear-resistant screws and barrels, such as Zhuoyue’s HTS PLUS, HTS SUPER and HTE series, whose screws and barrels are made of imported wear-resistant alloy steel and undergo bimetallic composite or laser cladding treatment, which can greatly improve the service life; regularly check the wear of the screw and barrel, and replace them in time when the wear is serious.

5.4 Common Problem 4: Instability of Product Quality Between Batches, Color Difference

This problem is mainly manifested in the inconsistency of masterbatch quality (such as concentration, dispersabilidad, color) between different batches, resulting in color difference of downstream products, which affects the reputation of the manufacturer. The main causes and solutions are as follows:

5.4.1 Main Causes:

• (1) Formula problem: The formula ratio is not strictly controlled, and the dosage of pigment, dispersant and other additives fluctuates (error exceeds ±1%).
• (2) Raw material problem: The performance of raw materials (such as pigment tinting strength, carrier melting point) of different batches is inconsistent.
• (3) Processing parameter problem: The extrusion temperature, velocidad del tornillo, feeding speed and other parameters fluctuate between different batches, resulting in inconsistent processing effect.
• (4) Equipment problem: The equipment has poor stability, and the parameters (such as temperature, presión) cannot be kept stable for a long time.

5.4.2 Soluciones:

• (1) Strictly control the formula ratio: Use high-precision weighing equipment to weigh raw materials, and the error is controlled within ±1%; establish a formula management system, and record the dosage of each raw material in detail.
• (2) Standardize raw material procurement and inspection: Select raw material suppliers with stable quality, and inspect the performance of raw materials (such as tinting strength, tamaño de partícula, contenido de humedad) before use; for raw materials of different batches, conduct trial production first to ensure consistent performance.
• (3) Standardize processing parameters: Use an intelligent control system (such as Zhuoyue’s PLC control system) to store the processing parameters of different masterbatch, and call the corresponding parameters when producing different batches, avoiding repeated debugging; regularly check the equipment parameters to ensure stable operation.
• (4) Establish quality inspection system: Conduct strict quality inspection on each batch of masterbatch, incluyendo color, dispersabilidad, concentration and other indicators, and only deliver the products that meet the standards.

5.5 Common Problem 5: Poor Processing Fluidity of Masterbatch, Difficult Extrusion, Equipment Blockage

This problem is mainly manifested in the difficulty of material conveying and extrusion, baja eficiencia de producción, unstable extrusion pressure, and even blockage of the die head and extrusion cavity, which affects the normal production. The main causes and solutions are as follows:

5.5.1 Main Causes:

• (1) Raw material problem: The carrier has poor fluidity, or the pigment content is too high (más que 80%), resulting in poor fluidity of the mixture; the raw material has high moisture content, which causes the material to agglomerate and block the feeding port.
• (2) Premixing problem: The premixing is uneven, and the dispersant is not fully mixed, resulting in poor fluidity of the material.
• (3) Extrusion parameter problem: La temperatura de extrusión es demasiado baja., the carrier is not fully melted, and the fluidity is poor; the screw speed is too low, the conveying capacity is insufficient; the die head hole is too small, and the extrusion resistance is too large.
• (4) Equipment problem: The screw conveying elements are worn, the conveying capacity is reduced; the feeding device fails, resulting in uneven feeding.

5.5.2 Soluciones:

• (1) Optimizar las materias primas: Select carriers with good fluidity; reduce the pigment content appropriately (control within 80%); dry the raw materials thoroughly to control the moisture content below 0.1%.
• (2) Improve premixing effect: Extend the premixing time, aumentar la velocidad de mezcla, ensure that the dispersant is fully mixed with the pigment and carrier, and improve the fluidity of the mixture.
• (3) Ajustar los parámetros de extrusión: Increase the extrusion temperature appropriately to ensure that the carrier is fully melted; increase the screw speed to improve the conveying capacity; replace the die head with larger die holes to reduce extrusion resistance.
• (4) Mantener el equipo: Replace worn screw conveying elements; check the feeding device regularly, and repair or replace the faulty parts in time; clean the feeding port and extrusion cavity regularly to avoid material accumulation and blockage.

6. Practical Application Cases of Zhuoyue Extruders in Masterbatch Processing

To further verify the performance advantages and application effects of Zhuoyue’s full series of extruders in masterbatch processing, this section will introduce several practical application cases, covering different masterbatch types, production scales and application fields. These cases fully demonstrate that Zhuoyue’s extruders can provide targeted and efficient processing solutions for different manufacturers, helping manufacturers improve production efficiency, product quality and market competitiveness.

6.1 Caso 1: Application of HTS SUPER Series in High-Concentration Black Masterbatch Processing for New Energy Vehicles

Customer Background: A large-scale masterbatch manufacturer in Jiangsu, Porcelana, mainly produces high-end functional masterbatch, focusing on the new energy vehicle field. The customer needs to produce high-concentration black masterbatch (carbon black content 70%) for automotive battery shell parts. The masterbatch requires ultra-high dispersibility (no black spots and streaks in the product), high temperature resistance (can withstand 200℃ high temperature without discoloration), and good batch stability. The customer’s original equipment has problems such as insufficient mixing and dispersing effect, unstable temperature control, and low production efficiency, which cannot meet the production requirements.

Solución: Zhuoyue recommends the HTS SUPER series twin-screw extruders (screw diameter 75mm) for the customer. This series adopts ultra-high torque gearboxes and laser-clad wear-resistant screws/barrels, which can provide strong shear force and wear resistance, effectively solving the problem of carbon black agglomeration; the 6-section precise temperature control system (precisión del control de temperatura ±1℃) can accurately control the extrusion temperature, avoiding carbon black decomposition; the multi-stage mixing screw combination ensures that the carbon black is uniformly dispersed in the PE carrier; the intelligent cloud control system can realize remote parameter adjustment and data monitoring, ensuring batch stability.

Application Effect: After using the HTS SUPER series extruders, the customer’s high-concentration black masterbatch has achieved ultra-high dispersibility, and the colored battery shell parts have no black spots and streaks, which meets the strict requirements of new energy vehicle manufacturers; the high temperature resistance of the masterbatch has been significantly improved, and no discoloration occurs at 200℃; the production efficiency has increased from 500kg/h to 1200kg/h, and the energy consumption has decreased by 22%; the batch stability of the masterbatch has been greatly improved, and the color difference between batches is less than 0.5, which has won high recognition from downstream customers. The customer has successively purchased 8 sets of HTS SUPER series extruders, forming a large-scale production line.

6.2 Caso 2: Application of HTS PLUS Series in Engineering Plastic PA Masterbatch Processing

Customer Background: A medium-sized masterbatch manufacturer in Guangdong, Porcelana, mainly produces engineering plastic masterbatch, focusing on the automotive and electronic fields. The customer needs to produce PA66 masterbatch (pigment content 50%) for automotive connector parts. The masterbatch requires good dispersibility, high temperature resistance (260℃), and good compatibility with PA66 raw materials. The customer’s original equipment has problems such as poor wear resistance of the screw/barrel, insufficient torque, and easy decomposition of PA66 carrier, which affects the product quality.

Solución: Zhuoyue recommends the HTS PLUS series twin-screw extruders (screw diameter 65mm) for the customer. This series adopts high-torque gearboxes independently developed by Zhuoyue, which can provide sufficient torque for PA66 masterbatch processing; the bimetallic composite screw/barrel has excellent wear resistance and corrosion resistance, which can cope with the wear of high-hardness pigments; the 5-section precise temperature control system and vacuum exhaust device can avoid PA66 carrier decomposition and remove moisture and volatile substances, ensuring the quality of the masterbatch; the modular screw design can be flexibly configured according to the PA66 masterbatch processing characteristics, improving the mixing and dispersing effect.

Application Effect: After using the HTS PLUS series extruders, the customer’s PA66 masterbatch has good dispersibility, and the automotive connector parts have uniform coloring and no color spots; the masterbatch can withstand 260℃ high temperature without decomposition and discoloration, and has good compatibility with PA66 raw materials; the service life of the screw/barrel has increased from 6 meses para 18 meses, reducing the maintenance cost by 60%; the production efficiency has increased from 300kg/h to 800kg/h, and the product qualification rate has increased from 92% a 99%. The customer’s PA66 masterbatch has successfully entered the supply chain of a well-known automotive parts manufacturer.

6.3 Caso 3: Application of HTE Series in Cost-Effective Film Masterbatch Processing

Customer Background: A small and medium-sized masterbatch manufacturer in Zhejiang, Porcelana, mainly produces film masterbatch, focusing on the packaging film field. The customer needs to produce PE film masterbatch (pigment content 40%) for food packaging films. The masterbatch requires good transparency, coloración uniforme, y bajo costo de producción. The customer’s original equipment has problems such as high energy consumption, unstable product quality, and low production efficiency, which cannot meet the market competition needs.

Solución: Zhuoyue recommends the HTE series twin-screw extruders (screw diameter 50mm) for the customer. This series integrates high performance and cost-effectiveness, adopts high-efficiency energy-saving motors and optimized screw structures, que puede reducir el consumo de energía en 18%-25%; the precise temperature control system ensures that the PE carrier is fully melted, avoiding affecting the transparency of the masterbatch; the enhanced mixing elements ensure uniform coloring of the masterbatch, and the stable performance ensures batch consistency; the reasonable price and low maintenance cost can help the customer reduce production costs.

Application Effect: After using the HTE series extruders, the customer’s PE film masterbatch has good transparency and uniform coloring, and the food packaging films produced have smooth surface and no color spots, which meets the food packaging standards; the energy consumption per ton of masterbatch has decreased by 20%, and the production efficiency has increased from 150kg/h to 400kg/h; the product qualification rate has increased from 90% a 98%, and the production cost has decreased by 15%. The customer’s market competitiveness has been significantly improved, and the order volume has increased by 40% within half a year. The customer has purchased 4 sets of HTE series extruders to expand production scale.

6.4 Caso 4: Application of ZTE Series in Small-Batch Multi-Variety Ordinary Masterbatch Processing

Customer Background: A small masterbatch manufacturer in Shandong, Porcelana, mainly produces small-batch multi-variety ordinary masterbatch (PE/PP color masterbatch, black masterbatch, white masterbatch), focusing on the local plastic product processing market. The customer has limited budget, small production scale, and needs to produce multiple types of masterbatch with small batches (50-100kg per batch). The customer’s requirements for the equipment are simple operation, bajo costo de mantenimiento, and strong adaptability.

Solución: Zhuoyue recommends the ZTE series twin-screw extruders (screw diameter 35mm) for the customer. This series has excellent cost performance, simple structure and easy operation, which is suitable for operators with little experience; the modular screw design can be flexibly adjusted according to different types of masterbatch, with strong adaptability; the wear-resistant screw/barrel and stable temperature control system can meet the basic processing requirements of ordinary masterbatch; the low energy consumption and low maintenance cost can help the customer reduce the initial investment and daily operation costs.

Application Effect: After using the ZTE series extruders, the customer can flexibly produce multiple types of ordinary masterbatch, and the product quality meets the basic requirements of local plastic product manufacturers; the equipment operation is simple, and the operator can master it quickly; the maintenance cost is low, and the annual maintenance cost is less than 5000 yuan; the production efficiency can meet the small-batch production needs (50-200kg/hora). The ZTE series extruders have helped the customer stabilize the local market and lay a foundation for future expansion.

7. Future Development Trend of Masterbatch and Twin-Screw Extrusion Technology

With the continuous development of the global plastics industry, the upgrading of environmental protection policies and the diversification of downstream market demand, the masterbatch industry and twin-screw extrusion technology are facing new development opportunities and challenges. The future development trend will focus on environmental protection, funcionalización, intelligence and high efficiency, and Zhuoyue will continue to focus on technological innovation, keep up with the industry trend, and provide more advanced and efficient processing solutions for masterbatch manufacturers.

7.1 Development Trend of Masterbatch Industry

7.1.1 In-depth Development of Environmental Protection and Low Toxicity.

With the strengthening of global environmental protection awareness and the strictness of environmental protection policies (such as the European Union’s REACH directive, China’s “double carbon” goal), environmental protection masterbatch will become the mainstream of the market. The future environmental protection masterbatch will focus on non-toxic, inofensivo, low-volatile, degradable and recyclable, y pigmentos tóxicos y nocivos (como pigmentos de metales pesados) and additives will be completely eliminated. Por ejemplo, water-based masterbatch, bio-based masterbatch and recyclable masterbatch will have broad market prospects. Al mismo tiempo, the recycling of masterbatch waste will also become an important development direction, which can reduce resource waste and environmental pollution.

7.1.2 Functional Integration and High Performance.

With the diversification of downstream product requirements, masterbatch will develop towards functional integration, that is, integrating multiple functions (such as coloring, retardante de llama, antiestático, antibacteriano, UV-resistant) into one masterbatch, which can reduce the addition amount of masterbatch, simplify the processing process, and reduce production costs. Por ejemplo, new energy vehicle masterbatch will integrate high temperature resistance, retardante de llama, funciones antiestáticas y otras; masterbatch médico integrará no tóxico, antibacteriano, alta transparencia y otras funciones. Además, masterbatch de alto rendimiento (como alta concentración, alta dispersabilidad, resistente a altas temperaturas, masterbatch resistente a la corrosión) Se utilizará más ampliamente en campos de alto nivel como el aeroespacial., Electrónica de precisión y nuevas energías..

7.1.3 Personalización y personalización.

Con la mejora de la demanda del mercado downstream, la personalización y personalización de masterbatch serán cada vez más prominentes. Los diferentes fabricantes intermedios tienen diferentes requisitos sobre masterbatch (como el color, concentración, función, tipo de transportista), y los fabricantes de masterbatch deben proporcionar soluciones de personalización personalizadas de acuerdo con las necesidades específicas de los clientes. Por ejemplo, Según la muestra de color proporcionada por el cliente., personalizar el masterbatch con el color correspondiente; according to the special use environment of the product, customize the masterbatch with targeted functions. This requires masterbatch manufacturers to have strong R&D capabilities and flexible production capacity.

7.2 Development Trend of Twin-Screw Extrusion Technology

7.2.1 Intelligence and Automation Upgrading.

The future twin-screw extruders will develop towards higher intelligence and automation. The intelligent control system will integrate AI, big data, Internet of Things and other technologies, which can realize real-time monitoring, automatic parameter adjustment, fault early warning, predictive maintenance and production data analysis of the extrusion process. Por ejemplo, the AI system can automatically adjust the screw speed, extrusion temperature and feeding speed according to the raw material performance and processing effect, ensuring the stability of product quality; the Internet of Things technology can realize the interconnection of multiple extruders, realizing centralized management and intelligent scheduling of the production line; the big data system can analyze the production data, optimize the processing parameters and formula, and improve production efficiency and product quality.

7.2.2 Alta eficiencia, Energy Saving and Environmental Protection.

High efficiency, energy saving and environmental protection will continue to be the key development direction of twin-screw extrusion technology. The future extruders will adopt more advanced screw structures, high-efficiency energy-saving motors and heating/cooling systems, which can further reduce energy consumption and improve production efficiency. Por ejemplo, the optimized screw structure can reduce the shear loss and improve the conveying efficiency; the high-efficiency energy-saving motor can reduce the energy consumption by 25%以上 compared with the traditional motor; the closed structure and waste gas treatment system can reduce the emission of dust and volatile substances, meeting the higher environmental protection requirements.

7.2.3 High Performance and Wear Resistance.

With the development of high-concentration, high-hardness masterbatch (such as filler masterbatch, engineering plastic masterbatch), the requirements for the performance and wear resistance of twin-screw extruders will be higher. The future extruders will adopt more high-performance wear-resistant materials (such as new alloy steel, ceramic materials) and advanced manufacturing technologies (such as laser cladding, bimetallic composite), which can greatly improve the wear resistance and corrosion resistance of the screw and barrel, extend the service life of the equipment. Al mismo tiempo, the extruders will be equipped with higher torque gearboxes and more advanced mixing elements, which can provide stronger shear force and kneading force, meeting the processing needs of high-performance masterbatch.

7.2.4 Modularization and Flexibility.

Modularization and flexibility will become an important development trend of twin-screw extruders. The future extruders will adopt a more perfect modular design, and the screw, barril, die head and other components can be freely combined and replaced according to the type of masterbatch and processing requirements, which can improve the adaptability of the equipment and reduce the investment cost of the customer. Por ejemplo, when producing different types of masterbatch, only the corresponding screw elements and die head need to be replaced, without replacing the entire extruder. Además, the small and medium-sized modular extruders will be more popular, which can meet the small-batch and multi-variety production needs of small and medium-sized manufacturers.

7.3 Zhuoyue’s Layout in the Future Development Trend

Facing the future development trend of the masterbatch industry and twin-screw extrusion technology, Zhuoyue will focus on technological innovation and product upgrading, and make layout in the following aspects: primero, strengthen the R&D of intelligent extrusion technology, integrate AI, big data and Internet of Things technologies into the extruder design, launch more intelligent and automatic extruders, and help customers realize intelligent production; segundo, increase the R&D investment in high-performance wear-resistant materials and energy-saving technologies, develop more efficient, energy-saving and wear-resistant extruders, reduce the production cost and environmental impact of customers; tercero, strengthen the R&D of customized solutions, according to the personalized needs of different customers, provide targeted extruder configuration and processing solutions, and improve customer satisfaction; cuatro, expand the R&D of environmental protection masterbatch processing technology, launch extruders suitable for water-based masterbatch, bio-based masterbatch and recyclable masterbatch processing, and help the masterbatch industry achieve green development.

8. Conclusión

lote maestro, as the core material of plastic coloring and functional modification, plays an indispensable role in the global plastics industry. Twin-screw extrusion technology, as the key processing technology of masterbatch, directly determines the quality, production efficiency and market competitiveness of masterbatch products. With the continuous development of the masterbatch industry towards environmental protection, funcionalización, high concentration and intelligence, the requirements for twin-screw extruders are becoming higher and higher.

Zhuoyue, as a professional manufacturer of twin-screw extruders, has launched a full series of extruders (HTS BÁSICO/PLUS/SUPER, ZTE, HTE) specially designed for masterbatch processing, each series has its own unique performance characteristics and targeted adaptation scenarios, which can provide personalized and efficient processing solutions for masterbatch manufacturers of different scales and fields. These extruders have the advantages of excellent mixing and dispersing effect, control preciso de la temperatura, high wear resistance, alta eficiencia de producción, energy saving and environmental protection, intelligent control and wide application range, which have been fully verified in many practical application cases.

This article comprehensively elaborates on the core knowledge of masterbatch, the principle and process of twin-screw extrusion technology, the performance advantages of Zhuoyue’s full series of extruders, los campos de aplicación de masterbatch, Problemas comunes y soluciones en el procesamiento., casos prácticos de aplicación, y la tendencia de desarrollo futuro. Se espera que este artículo pueda proporcionar una referencia completa y profesional para los fabricantes de masterbatch., técnicos de procesamiento, profesionales de la industria e investigadores relevantes.

En el futuro, Zhuoyue seguirá adhiriéndose al concepto de innovación tecnológica y orientación al cliente., mantenerse al día con la tendencia de desarrollo de la industria, Actualizar continuamente productos y tecnologías., proporcionar más avanzado, Soluciones de extrusión de doble tornillo eficientes y respetuosas con el medio ambiente, y trabajar junto con fabricantes de masterbatch de todo el mundo para promover el desarrollo de alta calidad de la industria de masterbatch..