Yéetel u séeba'anil ma'alo'ob u industriail plástico yóok'ol kaab, u k'áata'al yik'áalil plástico táan u bin u ya'abtal sáansamal, yéetel le ba'ax k'a'abéet uti'al u meyaj le productoo', kaambalil yo'osal u tojol yéetel protección ka'a jeets' xan táan u suut asab yéetel asab estrictos. Filler masterbatch, bey jump'éel aditivo funcional clave ti' le procesamiento plástico, ts'o'ok u utilizado ampliamente ti' jejeláas sikte producción plástico debido a u ventajas u xu'ulsiko'ob Baajux producción, ma'alo'obkíinsiko'ob u meyaj le producto yéetel ma'alo'obkíinsiko'ob u eficiencia le procesamiento. Táan k comprometidos u ts'aik líneas producción granulación avanzadas yéetel extrusoras ka'anal rendimiento utia'al u jejeláas tipos masterbatch llenador, ku k'ubik u yóol ti' ayik'al yaan ti' kaambalo'ob ti' investigación yéetel ma'alo'ob ma'alo'obtal extrusión yéetel fabricación, uti'al u ts'aik dirigido, soluciones procesamiento eficientes yéetel confiables utia'al u fabricantes masterbatch relleno, áantaj ti' le jejelas ma'alo'obkíinsiko'ob u eficiencia le producción, asegurar u ma'alobil le producto, yéetel u náajaltik jump'éel ventaja competitiva ti' le feroz ketlamo' k'íiwiko'.
Le artículo yaan u centrar u ti' le sikte masterbatch relleno, tu taamil u tsoolil le tuukulo'ob básicos, clasificación, tuukula' producción u masterbatch relleno, u noj meyaj le ma'alo'obtal extrusión ti' u producción granulación, le ventajas k serie extrusora yéetel u adaptación dirigida ti' le procesamiento masterbatch llenador, bey xan le sikte ka'anatako'ob específicos, bix u búukinta'al yéetel talamilo'ob yéetel soluciones náats'al ti' le producción. Yaan u complementar parámetros técnicos detallados, detalles le tuukula' yéetel ti'its chi'ibal le industria utia'al u enriquecer le contenido, chukpachtik le requisito recuento t'aano'ob ti' 3000-4000 t'aan, yéetel u ts'aik jump'éel k'a'ana'an yéetel j-ka'ansajo'ob uti'al le jejelas yéetel le máaxo'ob ku meyajo'ob ti' le industria masterbatch relleno.
1. Descripción general ti' le industria Filler Masterbatch yéetel características le producto
1.1 Situación actual yéetel tendencia ma'alo'ob u industria u relleno Masterbatch
Te' ts'ook ja'abo'oba', impulsado tumen le séeba'an ma'alo'ob u industrias abajo de le río bey le embalaje, kóonstruksion, automotriz, electrónica yéetel ba'alo'ob k'a'abéet sáansamal, u k'íiwiko' masterbatch u relleno global ts'o'ok u demostrado jump'éel tendencia tuméen constante. Le masterbatch relleno jach jump'éel bin yano'ob xooko'obo' compuesto ku beeta'al tumen mezcla, derretimiento, extrusión yéetel granulación rellenos inorgánicos (bey le carbonato de calcio, talco, sulfato de bario, etc.) yéetel portadores polímeros (bey le polietileno, polipropileno, cloruro de polivinilo, etc.) yéetel aditivos apropiados (bey le dispersantes, compatibilizadores, lubricantes, etc.) ti' jump'éel jaaj proporción. U meyaj jach u xu'ulul u tojol u beeta'al yik'áalil plástico ka' jo'op' u ma'alo'obkíinsiko'ob wa mantener le rendimiento básico ti' yik'áalil plástico.
Je'el bix u ya'alik le estadísticas datos pertinentes, le Buka'aj u ba'al u k'íiwiko' masterbatch llenador global ts'o'ok u superado 20 billones de dólares estadounidenses, yéetel ku pa'ta'al u mantener jump'éel tasa tuméen u 6%-9% ti' le próximos ja'abo'ob. ichil leti'obe', carbonato de calcio (CaCO3) le masterbatch relleno jach le bin yano'ob producto asab ampliamente utilizado, ku ts'áaik cuenta ti' asab ti' 60% ti' le k'íiwiko' masterbatch total u relleno, ku ts'o'okole' u talco relleno masterbatch, sulfato de bario (BaSO4) masterbatch relleno yéetel uláak' masterbatches relleno yaabilajech. Le región Asia-Pacífico jach le yóok'ol kaaba' asab nojoch k'íiwiko' producción yéetel jant p'áatalij masterbatch relleno, ku ts'áaik cuenta ti' asab ti' 50% ti' le cuota mercado mundial, ba'ax jach chuunil laat'a'an debido a le séeba'an ma'alo'ob le industria procesamiento plástico ti' China, India yéetel uláak' noj lu'umilo'ob, le nojoch k'áat chi'o' uti'al u xu'ulul u tojol yéetel u ma'alo'obkíinsa'al u meyaj le yik'áalil plástico, yéetel u ma'alo'obkíinsa'al le Buka'aj u ba'al u yáanta'al industrial.
Le tendencia ma'alo'ob ti' le industria masterbatch relleno ku refleja chuunil laat'a'an ti' kan aspectos: yáaxil, ka'anal rendimiento yéetel funcionalización. Yéetel u ma'alo'obkíinsa'al u k'a'abetkuunsa'al u yik'áalil plástico, masterbatch relleno ts'o'ok ma' u limita ti' le reducción u tojol, ba'ale' jujump'íitil ku bin u bin u meyaj, bey u ma'alo'obkíinsiko'ob u rigidez, muuk'il, resistencia ti' le ooxoj, resistencia ti' le k'iino' yéetel propiedades barreras ti' le yik'áalil plástico, yéetel u ma'alo'obkíinsa'al masterbatches relleno funcional yaabilajech bey retardante llama, antiestático yéetel antibacteriano; ka'a, ka'anal cantidad llenado yéetel ma'alo'ob dispersibilidad. Yáanal le premisa u asegurar u rendimiento le producto, u ya'abtal u cantidadil rellenos inorgánicos je'el u páajtal u xu'ulsik u tojol producción, which puts higher requirements on the dispersibility of filler masterbatch—excellent dispersibility can ensure that the filler is evenly distributed in the plastic matrix, avoiding the appearance of white spots, black spots or agglomeration in the final product; teersero, environmental protection and low pollution. Yéetel u mu'uk'a'ankuunsa'al le políticas globales ti' protección ambiental yéetel u ma'alo'obkíinsiko'ob u conciencia ti' protección ambiental, filler masterbatch manufacturers are gradually adopting environmentally friendly additives and production processes, reducing the emission of harmful substances, and developing degradable filler masterbatch to adapt to the development trend of green plastics; u kantúul, intelligence and efficiency of production equipment. In order to meet the large-scale, continuous and high-quality production needs of filler masterbatch, manufacturers are constantly introducing advanced granulation production lines and intelligent control systems, ma'alo'obkíinsiko'ob u eficiencia le producción, u xu'ulul u tojol le meyajo' yéetel u yilik u ma'alobil le productoo'.
Xu'ullsa'al le ju'unil tu'ux yaan, ma'alo'obtal u granulación u extrusión, bey le ma'alo'obtal núcleo ti' le producción masterbatch relleno, ts'o'ok u suut le clave utia'al u determinar le ma'alobil le masterbatch relleno yéetel le competitividad le jejelas. U meyaj le extrusoras Jun ku beetik u yantal le dispersibilidad, beyo' u partícula, índice de fusión yéetel uláak' indicadores clave ti' le masterbatch relleno. K extrusoras j-ka'ansajo'ob yéetel líneas producción granulación utia'al u masterbatch llenador ku desarrollan ti' núukik le yáantajo'ob ti' le industria yéetel le demanda k'íiwiko', ba'ax je'el u páajtal u resolver yéetel eficacia le ti'its chi'ibal ti' le procesamiento masterbatch relleno (bey óotsil dispersión, Buka'aj partícula ma' igual, chan cantidad u llenado, ka'anal jantbil energía, etc.) yéetel wáantik le jejelas kaxta'al u yúuchul jump'éel producción ka'anal calidad yéetel eficiente.
1.2 Clasificación u Filler Masterbatch yéetel u características k'ajle'
Le masterbatch relleno je'el u páajtal u ja'atsal u ti' jejeláas tipos bin le bin yano'ob relleno, resina portador, kúuchil ka'anatako'ob yéetel cantidad llenado. Amal bin yano'ob masterbatch relleno yaan u kajnáalo'ob yáantajo'ob únicas yéetel escenarios aplicables. Le je'ela' leti' jump'éel introducción detallada ti' le clasificación común yéetel le yáantajo'ob k'ajle' ti' le masterbatch relleno:
1.2.1 Clasificación tumen bin yano'ob relleno:
Lela' le método clasificación asab común utia'al u masterbatch relleno. Bin u bin yano'ob relleno inorgánico, je'el u páajtal u ja'atsal u chuunil laat'a'an ti' carbonato calcio (CaCO3) masterbatch u relleno, talco relleno masterbatch, sulfato de bario (BaSO4) masterbatch u relleno, yéetel uláak' lotes especiales u relleno (bey le masterbatch relleno caolin, masterbatch u relleno negro de carbono, masterbatch u llenador u láaj jo'ochiko'obe' vidrio, etc.).
- Carbonato de calcio (CaCO3) Filler Masterbatch: Leti' le masterbatch relleno asab ampliamente utilizado yéetel le menor ta manaj. Le relleno jach chuunil laat'a'an carbonato calcio ligero wa carbonato calcio aal. Carbonato calcio ligero yaan ti' Buka'aj partícula fina, ma'alob dispersión yéetel ka'anal sak, ba'ax le conveniente utia'al u yik'áalil plástico yéetel ka'anatako'ob requisitos ti' apariencia yéetel finura (bey u cha'ano'ob plástico, yik'áalil moldeo tumen inyección); carbonato calcio aal yaan ti' ka'anal dureza, ma'alob resistencia ti' le desgaste yéetel t'okik tojol, ba'ax le conveniente utia'al u yik'áalil plástico yéetel ka'anatako'ob requisitos yóok'ol rigidez yéetel kaambalil yo'osal u tojol (bey jiit'iko'ob tejido'ob, correas u embalaje, tubos, etc.). Carbonato calcio llenador masterbatch ma' chéen je'el xu'ulsiko'ob Baajux producción, ba'ale' xan ma'alo'obkíinsiko'ob u rigidez, resistencia ti' le ooxoj yéetel estabilidad dimensional ti' le yik'áalil plástico, yéetel yaan jump'éel jaaj efecto lubricante, ba'ax je'el u páajtal u ma'alo'obkíinsiko'ob u fluidez u procesamiento le plásticos.
- Talc Filler Masterbatch: The filler is talc powder with layered structure. Talc powder has good mechanical properties, heat resistance and chemical stability. Talc filler masterbatch is mainly used in polypropylene (PP) plastic products, which can significantly improve the rigidity, heat distortion temperature and impact strength of PP products, yéetel jach ampliamente utilizado ti' páajtal a automotriz, home appliance shells, plastic pipes and other fields that require high performance.
- Barium Sulfate (BaSO4) Filler Masterbatch: The filler is barium sulfate powder, which has high whiteness, ma'alob transparencia, chemical inertness and radiation resistance. Barium sulfate filler masterbatch is suitable for plastic products with high requirements on transparency, whiteness and chemical stability (bey u cha'ano'ob plástico, plastic bottles, medical plastic products, etc.), and can also be used in radiation-proof plastic products (such as medical protective equipment, nu'ukulo'ob ti' le páak'alo' nuclear, etc.).
1.2.2 Clasificación tumen resina portador:
Bin u bin yano'ob u yiits portador utilizado, masterbatch llenador je'el u páajtal u ja'atsal ti' polietileno (PE) masterbatch u relleno, polipropileno (PP) masterbatch u relleno, cloruro de polivinilo (PVC) masterbatch u relleno, tereftalato de polietileno (BA'ALCHE) masterbatch u relleno, etc. U yéeybal u yiits portador jach determinada chuunil laat'a'an tumen le bin yano'ob yik'áalil plástico abajo de le corriente. jéel bix, PE relleno masterbatch jach conveniente utia'al u yik'áalil plástico PE (bey u cha'ano'ob plástico, jiit'iko'ob, tubos); PP relleno masterbatch jach conveniente utia'al u yik'áalil plástico PP (bey jiit'iko'ob tejido'ob, páajtal a u moldeo tumen inyección, u páajtal a kiis buuts); PVC relleno masterbatch jach conveniente utia'al u yik'áalil plástico PVC (bey le tuberías PVC, perfiles, le'o'ob).
1.2.3 Clasificación tumen sikte ka'anatako'ob:
Bin u kúuchil ka'anatako'ob u yik'áalil plástico abajo de le corriente, masterbatch u relleno je'el u páajtal u ja'atsal u ti' masterbatch relleno u grado cha'ano', inyección-grado llenador masterbatch, masterbatch u llenador u grado extrusión, masterbatch u llenador u grado u moldeo tumen soplado, etc. Masterbatch relleno u grado cha'ano' k'a'abet ma'alo'ob dispersibilidad, ka'anal finura yéetel ma' impurezas, uti'al u yila'al wa le cha'ano' soplado mina'an ti'ob sak wíiniko'ob, boox manchas wa agujeros de alfileres, yéetel ku mantener ma'alo'ob transparencia yéetel dureza; inyección-grado llenador masterbatch k'a'abet ma'alo'ob fluidez yéetel Buka'aj partícula uniforme, utia'al u adaptar u ti' le tuukula' moldeo tumen inyección séeba'an yéetel asegurar le apariencia yéetel le exactitud dimensional ti' le yik'áalil inyección; masterbatch llenador grado extrusión k'a'abet ma'alo'ob estabilidad térmica yéetel propiedades mecánicas, uti'al u adaptar u ti' le tuukula' extrusión ka'anal temperatura yéetel ka'anal presión ti' le tuberías, perfiles yéetel uláak' yik'áalil.
1.2.4 Clasificación tumen cantidad u llenado:
Bin le cantidad llenado ti' rellenos inorgánicos, masterbatch u relleno je'el u páajtal u ja'atsal u ti' masterbatch t'okik llenado (cantidad u llenado 30%-50%), masterbatch chúumuk-llenado (cantidad u llenado 50%-70%) yéetel masterbatch ka'anal llenado (cantidad u llenado 70% yéetel yóok'ol). Le cantidad llenado ku determina bin le requisitos rendimiento yik'áalil downstream yéetel le Buka'aj u ba'al u procesamiento le nu'ukulil. Masterbatch ka'anal llenado yaan ti' efecto reducción u tojol asab obvio, ba'ale' yaan ti' asab ka'anatako'ob requisitos ti' le dispersibilidad le rellenos yéetel le rendimiento le extrusoras-chéen le extrusoras ka'anal rendimiento páajtal asegurar le mezcla uniforme yéetel fusión materiales ka'anal llenado, evitando le aglomeración yéetel le k'aak'as fluidez procesamiento.
K'a'ana'an u ya'ala'ale' le indicadores rendimiento núcleo ti' le masterbatch relleno chuunil laat'a'an incluyen dispersibilidad, uniformidad u Buka'aj le partícula, índice u fusión, sak (uti'al yik'áalil sáasil u boonil) yéetel compatibilidad yéetel u yiits portador. ichil leti'obe', le dispersibilidad jach le indicador asab crítico-óotsil dispersibilidad conducirá ti' le distribución desigual ti' le rellenos ti' yik'áalil plástico, ts'áaik tumen resultado defectos bey manchas sak wíiniko'ob, negro ti'its, aglomeración yéetel yik'áalil frágiles, ku jach k'askúuntik u yila'al yéetel u meyaj le yik'áalil plástico. Beytuno, u yéeybal nu'ukulo'ob extrusión avanzada yéetel ma'alo'obtal u procesamiento científico jach crucial utia'al u asegurar le dispersibilidad yéetel le ma'alobil global ti' le masterbatch llenador.
2. Ma'alo'obtal k'ajle' ti' le producción Masterbatch u relleno: Ma'alo'obtal u granulación u extrusión
Le ma'alo'obtal granulación extrusión jach le ma'alo'obtal núcleo ti' le producción masterbatch relleno, ku táakbesik u xa'ak'pajal, derretimiento, corte, dispersión yéetel granulación. Yaan ti' le ventajas ka'anal eficiencia producción, ma'alo'ob ma'alobil le producto, k'a'am adaptabilidad ti' le materias primas yéetel amplia gama ka'anatako'ob. Ti' le producción masterbatch relleno, ma'alo'obtal granulación extrusión ku meyajtiko'ob chuunil laat'a'an utia'al u ts'aik yilaje' u dispersión uniforme u rellenos inorgánicos ti' le portador polímero, derretir yéetel plastificar le mezcla, ka tu láak' extruir yéetel granular utia'al u formar masterbatch llenador granular yéetel Buka'aj uniforme, ma'alob fluidez yéetel estable rendimiento. U ma'alobil le granulación extrusión Jun determina le indicadores clave ti' le rendimiento masterbatch llenador, bey le dispersibilidad, Buka'aj partícula yéetel índice fusión.
2.1 U yáantajo'ob le materias primas u Filler Masterbatch yéetel requisitos utia'al u nu'ukulil extrusión
Le materias primas ti' le masterbatch relleno chuunil laat'a'an incluyen óoxp'éel pak'chaje': rellenos inorgánicos (bey CaCO3, talco, BaSO4), portadores u polímero (bey PE, PP, PVC) yéetel aditivos (bey le dispersantes, compatibilizadores, lubricantes, antioxidantes, etc.). U yáantajo'ob le k'iino'oba' materias primas ku bastante jejeláas, ku ts'áaik táanil requisitos especiales uti'al u nu'ukulil extrusión:
Yáaxil, le rellenos inorgánicos yaan ti' ka'anal dureza, k'aas compatibilidad yéetel portadores polímeros, yéetel ch'a'abil u aglomerar. Óol tuláakal le máasewáalo'obo' u rellenos inorgánicos (bey CaCO3, talco) ku hidrófilos, ka' jo'op' u le portadores polímeros ku hidrófobos, which leads to poor compatibility between fillers and carriers. If the mixing and shearing are insufficient, the fillers will agglomerate, which cannot be uniformly dispersed in the carrier, resulting in poor quality of filler masterbatch. Beyxan, the high hardness of inorganic fillers will cause serious wear to the screw and barrel of the extruder during the extrusion process, which requires the screw and barrel of the extruder to have extremely high wear resistance.
Ka'a, the mixture of filler masterbatch has high viscosity and poor fluidity. The addition of a large number of inorganic fillers will significantly increase the viscosity of the mixture, reduce the processing fluidity, and require the extruder to have strong conveying capacity and shearing force to ensure the smooth progress of melting, mixing and extrusion.
Teersero, the processing temperature range is narrow. Different carrier resins have different melting points and thermal stability. jéel bix, the melting point of PE is 100-130℃, the melting point of PP is 160-170℃, and PVC is easy to decompose at high temperatures (above 160℃). Beytuno, the extrusion equipment needs to have precise temperature control capacity to ensure that the mixture is fully melted without thermal decomposition, and to avoid the decomposition of additives and the deterioration of product performance.
Based on the above characteristics, single-screw extruders are not suitable for large-scale and high-quality production of filler masterbatch. Tuméen le extrusora chéen tornillo yaan ti' jump'éel rango cizallamiento estrecho, óotsil Buka'aj u ba'al u bombeo yéetel ma' efecto autolimpieza. When processing high-viscosity and high-filler mixtures, chéen ch'a'abil u beetik u much'ik ba'alo'ob, bloqueo yéetel mezcla desigual ti' le barril extrusora, resulting in poor dispersibility of filler masterbatch, uneven particle size and unstable product quality. Beyxan, the single-screw extruder has high energy consumption when processing high-filler materials, and the screw and barrel are severely worn, which increases the production cost and equipment maintenance cost of enterprises.
Extrusoras u ka'ap'éel tornillos, tu láak' tséel, have obvious advantages in filler masterbatch production and have become the mainstream equipment for filler masterbatch extrusion granulation. Twin-screw extruders have a wider shear range, efecto bombeo asab xoknáalo'obo' yéetel efecto autolimpieza, which can effectively solve the problems of poor compatibility, easy agglomeration and poor fluidity of filler masterbatch raw materials. The intermeshing and rotating of the twin screws can generate strong shear force and kneading force, which can fully break the agglomerates of inorganic fillers, make the fillers uniformly dispersed in the polymer carrier, yéetel asegurar u dispersibilidad yéetel estabilidad le producto. Beyxan, le extrusora ka'ap'éel tornillos yaan ti' ma'alo'ob exactitud kanik temperatura, k'a'am adaptabilidad ti' le materias primas, yéetel je'el u páajtal u adaptar u ti' le procesamiento jejeláas tipos, jejeláas yaan xan ya'abach u llenado masterbatch, yéetel yaan ka'anal eficiencia producción yéetel yáanal jant p'áatalij energía.
2.2 Principio meyaj ti' le granulación u extrusión u lote maestra u relleno
Le tuukula' granulación extrusión ti' le masterbatch relleno jach jump'éel tuukula' físico yéetel químico complejo, ku táakbesik u múul meyaj ya'ab ba'alo'ob je'el bix le temperaturao', presion, muuk' u cizallamiento yéetel k'iin. Le principio meyaj específico yéetel le flujo tuukula' le le je'ela':
Yáaxil, pretratamiento u yo'olal prima. Le materias primas ti' le masterbatch relleno (rellenos inorgánicos, resina portador, aditivos) k'a'abéet u pretratado utia'al u asegurar u ma'alobil le producto final. Le wook específicos incluyen: 1) Ts'a'akal u tikintaj: Rellenos inorgánicos (bey CaCO3, talco) suuk u hidrófilos yéetel ku taasik jump'éel cierta cantidad humedad. Wa le contenido humedad jach ka'anal, it will affect the mixing effect and dispersibility of the materials, and even cause bubbles in the extruded masterbatch. Beytuno, the fillers need to be dried in a dryer (such as a hot air dryer, a vacuum dryer) to reduce the moisture content to below 0.5%. 2) Crushing and sieving: The carrier resin (bey PE, PP) is crushed into small particles or powder with a particle size of 20-40 malla, which is conducive to uniform mixing with fillers and additives. Inorganic fillers are also sieved to remove impurities and large particles, ensuring the fineness and uniformity of fillers. 3) Premixing: According to the formula ratio, the dried fillers, carrier resin particles and additives (dispersants, compatibilizadores, lubricantes, etc.) are put into a high-speed mixer for premixing. The mixing speed is generally 800-1200 rpm, and the mixing time is 5-10 minuto'ob. U tuukulil le premezcla jach u meentik u le aditivos uniformemente adhieren ti' le superficie rellenos yéetel u yiits portador, ma'alo'obkíinsiko'ob u compatibilidad ichil le rellenos yéetel le portador, yéetel ts'áik jump'éel k'oja'ano'obo' uti'al u mezcla extrusión posterior. Le dispersante jach jump'éel aditivo clave ti' le premezcla, ku páajtal u beetik jump'éel cha'ano' protectora yóok'ol u yich le relleno, xu'ulsiko'ob u muuk'il u yich le relleno, ma' u aglomerar le relleno, yéetel ma'alo'obkíinsiko'ob u dispersibilidad le llenador ti' le resina portador.
Ka'a, tséentik yéetel bisik. Le mezcla premezclada ku túuxta'al ti' le tolva alimentación ti' le extrusora ka'ap'éel tornillos yo'osal jump'éel alimentador tornillo wa jump'éel alimentador correa. Le velocidad alimentación k'a'abéet u uniforme yéetel estable, ba'ax ku nupikubáa yéetel u velocidad le tornillo yéetel u velocidad le extrusión ti' le extrusora, to ensure that the materials enter the extrusion cavity stably and avoid material accumulation or insufficient feeding. The feeding device of the extruder is usually equipped with a frequency conversion speed regulation function, which can adjust the feeding speed according to the actual production situation.
Teersero, derretimiento, mixing and shearing. The materials entering the extrusion cavity of the twin-screw extruder are pushed forward continuously by the rotating screws. The extrusion cavity is composed of a screw and a barrel, yéetel u volumen le cavidad extrusión jujump'íitil disminuye a lo largo de le dirección le bak'pach. When the screws rotate, the materials are gradually compressed under the action of the screws and the barrel, yéetel le presión ti' le cavidad extrusión jujump'íitil aumenta (generally 3-15MPa). Te' k'iino' je'el xano' k'iin, the materials are subjected to strong shear force and friction force generated by the relative movement between the screws and the barrel, bey xan ichil le vuelos tornillo.
The shear force and friction force can fully break the agglomerates of inorganic fillers, make the fillers uniformly dispersed in the melted carrier resin, and promote the fusion and compatibility between the fillers and the carrier. The friction force can also generate a certain amount of heat, which is combined with the external heating of the barrel (electric heating or steam heating) to make the carrier resin gradually melt and plasticize. The barrel of the extruder is usually divided into 3-6 temperature control sections (jaatsil u tséenta'al, melting section, mixing section, homogenizing section, etc.), and the temperature of each section is precisely controlled according to the type of carrier resin and filler. jéel bix, when processing PE carrier filler masterbatch, the temperature of the feeding section is 80-100℃, the melting section is 120-140℃, the mixing section is 140-150℃, and the homogenizing section is 130-140℃; when processing PP carrier filler masterbatch, the temperature of each section is 20-30℃ higher than that of PE carrier.
Kanp'éel, extrusion and shaping. The fully melted, mixed and dispersed material is pushed to the die head of the extruder by the screws. The die head is equipped with multiple die holes (the number and size of die holes are determined according to the particle size of the masterbatch), and the material is extruded from the die holes at a high speed to form continuous strips of uniform thickness. The temperature of the die head is slightly lower than that of the homogenizing section, which can prevent the material from decomposing due to excessive temperature and ensure the shaping effect of the strips.
U jo'op'éel, cooling and cutting. The extruded strips are sent to a cooling device (such as a water tank, an air-cooled conveyor) for rapid cooling. The cooling temperature is generally 20-30℃, yéetel u k'iinil enfriamiento jach 2-5 minuto'ob. Rapid cooling can make the strips solidify quickly, maintain the shape and size of the strips, and avoid deformation. ka' ts'o'ok u síistal, the strips are sent to a granulator for cutting. The granulator is equipped with a rotary knife, which can cut the strips into granular filler masterbatch with uniform size (the particle size is generally 2-5mm, which can be adjusted according to customer needs). The speed of the rotary knife is matched with the conveying speed of the strips to ensure that the particle size of the masterbatch is uniform.
Sixth, screening and packaging. The cut granular filler masterbatch is sent to a vibrating screen for screening, which can remove unqualified particles (such as too large, too small or agglomerated particles) and ensure the uniformity of the product. The qualified masterbatch is then sent to an automatic packaging machine for packaging. Le especificaciones embalaje ku páajtal ajustar bin kajtalo'ob ichil u le cliente (such as 25kg/bag, 50kg/póoj), and the packaging should be sealed and moisture-proof to prevent the masterbatch from absorbing moisture and affecting the quality. Ka' ts'o'ok u embalaje, le yik'áalil ku almacenan ti' jump'éel tikin, almacén síis yéetel ventilado.
2.3 Key Factors Affecting Filler Masterbatch Extrusion Granulation Effect
The effect of extrusion granulation directly affects the quality of filler masterbatch. There are many factors affecting the granulation effect, mainly including raw material characteristics, formula ratio, premixing effect, extrusion parameters and die head structure. Mastering these key factors and making scientific adjustments can ensure the stability of the granulation effect and the consistency of product quality.
2.3.1 Raw Material Characteristics:
The type, particle size, moisture content and purity of raw materials have a great impact on the granulation effect. jéel bix, the particle size of inorganic fillers directly affects the dispersibility and fineness of the masterbatch. The finer the particle size of the filler (maantats' 800-2000 malla), the better the dispersibility, but the higher the cost and the easier it is to agglomerate; the coarser the particle size, the lower the cost, but the dispersibility is poor, which will affect the appearance and performance of the masterbatch. The moisture content of raw materials (especially fillers) should be controlled below 0.5%; if the moisture content is too high, it will cause bubbles in the masterbatch, affect the density and mechanical properties of the product. The purity of raw materials is also very important; impurities in raw materials (such as stones, metals, polbóo) will not only affect the quality of the masterbatch, but also wear the screw and barrel of the extruder, and even cause equipment blockage.
2.3.2 Formula Ratio:
The formula ratio of filler masterbatch (the ratio of filler, carrier resin and additives) is the key to determining the performance and cost of the product. The filling amount of the filler should be determined according to the performance requirements of the downstream product and the processing capacity of the equipment. Too high filling amount will lead to poor dispersibility, low toughness and poor processing fluidity of the masterbatch; too low filling amount will reduce the cost reduction effect. The type and dosage of additives also need to be reasonably matched. jéel bix, the dispersant dosage is generally 1%-3% of the filler dosage; too little dispersant will lead to poor dispersibility of the filler, and too much dispersant will affect the compatibility between the masterbatch and the downstream plastic products, and reduce the mechanical properties of the products. The compatibilizer is used to improve the compatibility between the filler and the carrier resin; the dosage is generally 0.5%-2%, which can significantly improve the dispersibility and mechanical properties of the masterbatch. The lubricant is used to reduce the friction between the materials and the screw, barrel and die head, improve the processing fluidity, and prevent the materials from sticking to the equipment; the dosage is generally 0.3%-1%.
2.3.3 Efecto u premezcla:
Premixing is the foundation of extrusion granulation. The uniformity of premixing directly affects the dispersibility of the filler in the carrier resin. Wa le premezcla ma' jach igual, the additives cannot be uniformly adhered to the surface of the filler and carrier, resulting in local agglomeration of the filler, uneven mixing of the materials during extrusion, and poor quality of the masterbatch. To ensure the premixing effect, it is necessary to control the mixing speed, mixing time and mixing temperature. The mixing speed is generally 800-1200 rpm, the mixing time is 5-10 minuto'ob, and the mixing temperature is controlled at 40-60℃ (appropriate temperature can improve the adhesion of additives and promote uniform mixing).
2.3.4 Parámetros u extrusión:
Extrusion parameters are the most important factors affecting the granulation effect, chuunil laat'a'an incluyendo velocidad le tornillo, temperatura u extrusión yéetel presión u extrusión.
- Velocidad le tornillo: The screw speed generally ranges from 150 ti' 600 rpm. Le asab ka'anal u velocidad le tornillo, asab nojoch u muuk'il cizallamiento yéetel muuk' fricción k'a'am tumen le materiales, the better the mixing and dispersing effect of the filler, and the higher the production efficiency. Chen ba'ale, wa u velocidad le tornillo jach ka'anal, u k'iinil u p'áatal le ba'alo'ob te' cavidad extrusión jach kóom, resulting in incomplete melting of the carrier resin, insufficient mixing of the materials, and uneven particle size of the masterbatch; wa u velocidad le tornillo jach baja, u muuk'il cizallamiento yéetel u muuk'il fricción ma' suficientes, the filler cannot be fully dispersed, and the production efficiency is low. The screw speed should be adjusted according to the filling amount and type of filler masterbatch—for high-filling masterbatch, a higher screw speed is needed to ensure sufficient shearing and mixing.
- Temperatura u extrusión: The extrusion temperature is divided into multiple sections (jaatsil u tséenta'al, melting section, mixing section, homogenizing section, die head section), and the temperature of each section needs to be precisely controlled according to the type of carrier resin and filler. U yooxol le jaats ku tséenta'alo' asab t'okik (slightly higher than the melting point of the carrier resin), ba'ax le chuunil laat'a'an utia'al Jech u le materiales u aglomeración yéetel asegurar le alimentación O'olkij; u temperatura le sección derretimiento jach chúumuk, which is mainly to promote the melting and plasticization of the carrier resin; u temperatura le sección mezcla asab ka'anal, ba'ax jach chuunil laat'a'an yo'osal u ma'alo'obkíinsiko'ob u efecto le cizallamiento yéetel le mezcla, and promote the uniform dispersion of the filler; u temperatura le sección homogeneización jach jump'íit asab baja u le sección mezcla, ba'ax jach chuunil laat'a'an utia'al asegurar le temperatura uniforme yéetel le viscosidad le materiales, yéetel Jech u descomposición térmica; u temperatura le sección pool troquel jach ligeramente asab baja u le sección homogeneización, ba'ax le utia'al asegurar le efecto moldeo ti' le tiras.
- Presión u extrusión: Le presión extrusión jach tu general 3-15MPa. Le presión ti' le cavidad extrusión jach determinada chuunil laat'a'an tumen le relación compresión ti' le tornillo, u nojchil le joolo' yéetel u velocidad le tornillo. Le asab ka'anal u presión le extrusión, asab ma'alo'ob le efecto mezcla yéetel dispersión ti' le materiales, yéetel le asab denso le partículas masterbatch. Chen ba'ale, wa le presión jach ka'anal, yaan u ya'abtal u jantbil energía yéetel u búukinta'al le nu'ukulilo'obo', yéetel tak u beetik u k'a'alal u pool le kíimilo'; wa le presión jach baja, le materiales ma' táan u béeytal u jaatsatako'ob comprimidos yéetel xa'ak'pajal, le partículas masterbatch ku sueltas, yéetel le rendimiento jach inestable.
2.3.5 Ba'ax u pool le kíimilo':
Le ba'ax u pool le troquel analte'obo' yaan chuunil laat'a'an le meyaj ku, beyo' yéetel u nojchil le agujeros troquel. U beyo' le orificio troquel determina le beyo' sección transversal ti' le tiras extruidas (bey circular, ma'abe'en), yéetel u nojchil le joolo' ku jets'ik u yáax metros le tiras yéetel u nojchil le partícula final ti' le masterbatch. Le asab chichan u nojchil le jool troquel, asab nojoch u presión le extrusión, asab ma'alo'ob le efecto mezcla yéetel dispersión, ba'ale' u páajtalil u beeta'al yaan u xu'ulul; le asab nojoch le Buka'aj u ba'al u jool le troquel, le menor le presión extrusión, the lower the production efficiency, but the particle size of the masterbatch is larger. Le meyaj ku u agujeros troquel afecta le Buka'aj u ba'al u producción; the more the number of die holes, asab ka'anal u páajtalil u beeta'al, ba'ale' k'a'abéet u yila'al u distribución le presión jach uniforme, so as to avoid uneven thickness of the strips and uneven particle size of the masterbatch.
3. k extrusoras: Advantages and Product Series for Filler Masterbatch Production
Ts'o'ok u xáantal k táakpajal ti' le investigación, development and production of high-performance extruders and granulation production lines, and have accumulated rich experience in the field of filler masterbatch processing. According to the characteristics of filler masterbatch raw materials (high hardness, poor compatibility, high viscosity) and processing requirements (good dispersibility, uniform particle size, high filling amount), we have developed a series of twin-screw extruders specially suitable for filler masterbatch production. Our extruders have the advantages of high wear resistance, strong shearing force, kaambalil yo'osal u temperatura jach jaaj, stable performance and low operating cost, which can meet the processing needs of various types, jejeláas yaan xan ya'abach u llenado masterbatch (CaCO3, talco, BaSO4, etc.), and help enterprises improve production efficiency, ensure product quality and reduce production costs.
3.1 Main Advantages of Our Extruders for Filler Masterbatch Production
3.1.1 High Wear Resistance, Long Service Life:
Aiming at the problem that inorganic fillers (bey CaCO3, talco) have high hardness and easy to wear the screw and barrel, we adopt high-quality wear-resistant materials and advanced manufacturing technology to ensure the wear resistance of the core components of the extruder. The screw and barrel are made of imported wear-resistant alloy steel (such as 38CrMoAlA), and after nitriding treatment or bimetallic composite treatment, the surface hardness can reach ≥65 HRC, which has extremely strong wear resistance and corrosion resistance, and can effectively resist the wear caused by the friction between the high-hardness filler and the components. This greatly extends the service life of the screw and barrel, reduces the frequency of component replacement, and reduces the maintenance cost of the equipment. Beyxan, we also provide professional wear detection services for the screw and barrel. Our technical team will regularly detect the wear degree of the screw and barrel for customers, issue a detailed wear report, and put forward targeted replacement and maintenance suggestions, ensuring that customers only replace components when necessary, avoiding unnecessary waste.
3.1.2 Strong Shearing and Mixing Capacity, Excellent Dispersibility:
The key to filler masterbatch production is to ensure the uniform dispersion of fillers. Our twin-screw extruders adopt an intermeshing co-rotating twin-screw structure, with a reasonable screw pitch, lead and compression ratio design. The intermeshing and rotating of the twin screws can generate strong shear force and kneading force, which can fully break the agglomerates of inorganic fillers, make the fillers uniformly dispersed in the melted carrier resin, and ensure the dispersibility of the masterbatch. The screw is designed with a modular structure, and different screw elements (such as conveying elements, xa'ak'tik elementos, shearing elements) can be freely combined according to the type and filling amount of filler masterbatch, so as to adjust the shear force and mixing effect, and achieve the best processing effect. jéel bix, when processing high-filling CaCO3 masterbatch, we can configure more shearing elements to enhance the shearing effect and ensure the uniform dispersion of the filler; when processing talc masterbatch which requires high mixing uniformity, we can configure more mixing elements to improve the mixing effect.
3.1.3 Kaambalil yo'osal u temperatura preciso, Rendimiento estable:
Our extruders adopt advanced intelligent temperature control systems, ba'ax je'el u páajtal u ts'aik yilaje' u kaambalil yo'osal preciso ti' le temperatura Amal sección le barril yéetel u pool le troquel. The temperature control accuracy can reach ±1℃, which can ensure that the carrier resin is fully melted without thermal decomposition, and the additives are not decomposed, ensuring the stability of the product performance. Le yaan kaambalil yo'osal temperatura táan equipado yéetel juntúul función monitoreo yéetel alarma tu k'iinil xíimbal tumen. If the temperature of any section exceeds the set range, le yaan yaan u ts'áaik jump'éel alarma tu k'iinili', and even automatically adjust the heating power or shut down the equipment if necessary, uti'al ma' u yantal talamilo'ob ti' le nu'ukulil yéetel u ma'alobil le producto. Beyxan, the extruder is equipped with a high-precision pressure sensor, which can monitor the extrusion pressure in real time. If the pressure is too high or too low, the system will adjust the screw speed or feeding speed automatically, ensuring the stability of the extrusion process.
3.1.4 Wide Application Range, Strong Flexibility:
Our extruder series can adapt to the processing needs of various types of filler masterbatch, including CaCO3 filler masterbatch, talco relleno masterbatch, BaSO4 filler masterbatch, yéetel uláak' lotes especiales u relleno. The filling amount can be adjusted from 30% ti' 80%, which can meet the different cost and performance requirements of customers. The modular design of the extruder (toorniyo, barril, kíimil pool, etc.) makes the replacement of components more convenient and quick. When customers need to adjust the product type or filling amount, they only need to replace the corresponding components, without replacing the entire equipment, which reduces the cost of equipment transformation and improves the flexibility and adaptability of the equipment. Beyxan, our extruders can also be matched with different auxiliary equipment (such as high-speed mixers, dryers, coolers, granulators, screening machines, packaging machines) to form a complete automatic granulation production line, realizing continuous production from raw material pretreatment to product packaging.
3.1.5 Ka'anal eficiencia ti' le producción, Low Energy Consumption:
K extrusoras u ka'ap'éel tornillos yaan ti' ka'anal eficiencia producción, ba'ax jach asab ka'anal ti' le extrusoras chéen tornillo. The production capacity of our extruders ranges from 100kg/h to 3000kg/h, ba'ax je'el u páajtal u satisfacer kajtalo'ob ichil u producción jejeláas escalas jejelas (chichan, chúumuk yéetel nojoch). Le yaan impulsión ka'anal esfuerzo torsión yéetel diseño tornillo optimizado ti' le extrusora je'el u páajtal u ma'alo'obkíinsiko'ob yéetel eficacia le Buka'aj u ba'al u transporte yéetel eficiencia plastificación materiales, u xu'ulul u k'iinil u p'áatal le ba'alo'ob te' cavidad extrusión yéetel u ma'alo'obkíinsa'al u eficiencia le producción. Te' k'iino' je'el xano' k'iin, the extruder adopts an energy-saving design, such as a high-efficiency motor, a heat recovery device, etc., which can reduce the unit energy consumption by 15%-25% ti' comparación yéetel le extrusoras ordinarias, helping enterprises reduce production costs.
3.1.6 Easy Operation and Maintenance:
Our extruders adopt a PLC intelligent control system and a touch screen operation interface, ba'ax jach ken a wa'ale' yéetel intuitivo, ch'a'abil u meyaj. The system can store multiple sets of product formulas and processing parameters. When customers produce different types of filler masterbatch, chéen k'a'abéet u t'anik le fórmula yéetel le parámetros correspondientes, xma' u ka'a beeta'al u depuración, which saves time and improves production efficiency. The modular design of the equipment makes the maintenance more convenient. Le tornillo, barril, die head and other components can be disassembled and assembled quickly, which reduces the maintenance time and labor intensity. K nu'ukulil mayaj post-venta proporcionará instalación j-ka'ansajo'ob, áantajo'ob ti' puesta tu marcha yéetel formación uti'al u clientes, u yilik u le clientes páajtal utilizar le nu'ukulil xma' toop.
3.2 Our Extruder Product Series and Their Adaptation to Filler Masterbatch
In order to meet the diverse production needs of filler masterbatch enterprises of different scales and product types, we have launched a full range of twin-screw extruder products, ichil le serie HTS BASIC, HTS PLUS series, HTS SUPER series, ZTE series and HTE series. Each series has its own characteristics and targeted adaptation scenarios, which can be selected by customers according to their own production scale, product type, budget and other factors.
3.2.1 HTS BASIC Series Extruders: Cost-Effective Choice for Medium and Small-Scale Enterprises.
Le extrusoras serie HTS BASIC ku jump'éel serie producto rentable independientemente desarrollado tumen to'on, which are specially designed for filler masterbatch processing enterprises with medium and small production scales or initial entry into the industry. Le serie extrusoras meyajtiko'ob cajas cambios chúumuk esfuerzo torsión u fabricantes europeos líderes, ba'ax yaan ti' le ventajas u rendimiento estable, jump'íit juum, ka'anal eficiencia yéetel chowak kuxtal útil. The medium-torque design can meet the processing needs of most common filler masterbatch (such as low-to-medium filling CaCO3 masterbatch, PE/PP carrier masterbatch), yéetel ti' le k'iino' je'el xano' k'iin, yaan jump'éel tojol ma'alob, ba'ax je'el u yáantik le jejelas xu'ulsiko'ob u tojol le inversión inicial.
Tu yo'olal u diseño estructural, le extrusoras serie HTS BASIC adoptan jump'éel ba'ax paralela u ka'ap'éel tornillos, yéetel jump'éel metros u tornillo ku bino'ob tak 30mm tak 65mm, yéetel jump'éel relación compresión 4～8, which can be adjusted according to the type and filling amount of filler masterbatch. The barrel is made of wear-resistant alloy steel with nitriding treatment, and the screw is made of wear-resistant and corrosion-resistant alloy steel, which has good wear resistance. Le extrusora yaan ti' jump'éel t.u.m kaambalil yo'osal PLC yéetel juntúul interfaz operación pantalla táctil, which can realize automatic feeding, kaambalil yo'osal u temperatura automático, kaambalil yo'osal u presión automático yéetel corte automático, and is simple and easy to operate.
The production capacity of the HTS BASIC series extruders ranges from 100kg/h to 500kg/h, which is suitable for medium and small-sized filler masterbatch processing enterprises that mainly produce common filler masterbatch (such as CaCO3 masterbatch for plastic films, woven bags). 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, u poolo'ob kíimil, nu'ukulo'ob u tséentik, drying devices and post-processing equipment according to their own product types, Buka'aj u ba'al u producción yéetel presupuesto, uti'al u beetik jump'éel internet ichil producción adecuada uti'al u kajtalo'ob.
3.2.2 HTS PLUS Series Extruders: High-Performance Choice for Engineering Plastic and Filler Masterbatch.
The HTS PLUS series extruders adopt high-torque gearboxes independently developed and manufactured by us, which have stronger torque and load-bearing capacity than the HTS BASIC series. This series of extruders is mainly used for the processing of high-performance filler masterbatch, such as high-filling CaCO3 masterbatch (filling amount ≥60%), talc masterbatch, BaSO4 masterbatch, and filler masterbatch for engineering plastics (such as PP, PA, PC).
The HTS PLUS series extruders have a screw diameter ranging from 65mm to 110mm, a compression ratio of 5～10, and a screw speed range of 200～600 rpm. The screw and barrel adopt bimetallic composite treatment, which has higher wear resistance and corrosion resistance, and can adapt to the processing of high-hardness fillers (such as heavy calcium carbonate, talco) and high-filling materials. The extruder is equipped with an advanced intelligent control system, which can realize precise control of extrusion parameters and real-time monitoring of production data. The production capacity ranges from 500kg/h to 2000kg/h, which is suitable for medium and large-scale filler masterbatch enterprises that pursue high performance and high filling amount.
Beyxan, the HTS PLUS series extruders have a stronger mixing and shearing capacity, which can fully disperse the high-filling fillers in the carrier resin, ensuring the dispersibility and stability of the masterbatch. It is especially suitable for the production of filler masterbatch used in automotive parts, home appliance shells, high-grade plastic films and other high-performance plastic products.
3.2.3 HTS SUPER Series Extruders: Top-End Choice for High-End Filler Masterbatch.
The HTS SUPER series extruders adopt the latest ultra-high torque transmission device independently developed by us. Aiming at the high torque and high speed characteristics of this series, the structural design of each key component of the extruder has been completely optimized, which is our highest-end extruder series, representing the advanced level of China’s extruder development. This series of extruders is mainly used for the processing of high-end, special and high-performance filler masterbatch, such as high-filling BaSO4 masterbatch (for medical plastics, high-grade films), glass fiber reinforced filler masterbatch, flame-retardant filler masterbatch, and filler masterbatch for special engineering plastics.
The HTS SUPER series extruders have a screw diameter ranging from 80mm to 130mm, a compression ratio of 6～12, and a screw speed range of 250～700 rpm. The screw and barrel adopt imported wear-resistant alloy steel and laser cladding technology, which has extremely high wear resistance and corrosion resistance, and can adapt to the processing of various special fillers (such as glass fiber, carbon black, sulfato de bario) and high-filling materials (filling amount ≥70%). The extruder is equipped with an intelligent PLC + cloud touch screen control system, which can realize remote parameter adjustment, production data monitoring and predictive maintenance of equipment, realizing intelligent production management.
The production capacity of the HTS SUPER series extruders ranges from 1000kg/h to 3000kg/h, which is suitable for large-scale high-end filler masterbatch enterprises that pursue high efficiency, high performance and intelligence. This series of extruders has the advantages of high precision, strong customization, multi-function and stable performance, which can meet the most stringent processing requirements of high-end filler masterbatch.
3.2.4 ZTE Series Extruders: Cost-Effective Choice for General Filler Masterbatch.
The ZTE series extruders have excellent cost performance, and their designed parameters are suitable for most filler masterbatch materials (such as low-to-medium filling CaCO3 masterbatch, PE/PP carrier masterbatch). This series of extruders adopts a simplified and optimized structure, which reduces the production cost while ensuring the basic performance, and is suitable for small and medium-sized enterprises with limited budget and general product requirements.
The ZTE series extruders have a screw diameter ranging from 30mm to 50mm, a compression ratio of 4～7, and a screw speed range of 150～500 rpm. The production capacity ranges from 50kg/h to 300kg/h, which is suitable for small-scale production of common filler masterbatch. The extruder is easy to operate and maintain, and the after-sales service cost is low, which is a cost-effective choice for small enterprises and individual workshops.
3.2.5 HTE Series Extruders: High-Efficiency and Energy-Saving Choice for Large-Scale Production.
The HTE series extruders combine high performance and high cost performance, and are designed to reduce energy consumption with higher output. This series of extruders adopts a high-efficiency motor, an optimized screw structure and a heat recovery device, which can reduce the unit energy consumption by 20%～25% compared with ordinary extruders, and has higher production efficiency.
The HTE series extruders have a screw diameter ranging from 65mm to 110mm, a compression ratio of 5～9, and a screw speed range of 200～600 rpm. The production capacity ranges from 500kg/h to 2500kg/h, which is suitable for large-scale continuous production of common filler masterbatch (such as CaCO3 masterbatch, talc masterbatch). The extruder is equipped with a precise temperature control system and a stable pressure control system, which can ensure the uniformity and stability of the product quality. It is suitable for large-scale filler masterbatch enterprises that pursue high efficiency, energy saving and cost control.
3.3 Selection Suggestions for Filler Masterbatch Extruders
When selecting extruders for filler masterbatch production, le jejelas k'a'abéet u considerar ampliamente u kajnáalo'ob producción kajtalo'ob ichil, u jejeláasil yik'áalil, cantidad u llenado, presupuesto yéetel uláak' ba'alo'ob uti'al u yila'al wa le nu'ukulil yéeya'ano' je'el u páajtal u satisfacer le kajtalo'ob ichil u producción xíimbal tumen yéetel taasik beneficios económicos máximos. Le je'ela' yaan Jayp'éel sugerencias selección específicas:
3.3.1 Determine the Extruder Series According to Product Type and Filling Amount:
Different types and filling amounts of filler masterbatch have different requirements for extruders. jéel bix, if the enterprise mainly produces low-to-medium filling CaCO3 masterbatch (filling amount ≤60%) and common PE/PP carrier masterbatch, the HTS BASIC series or ZTE series extruders are suitable; if the enterprise produces high-filling masterbatch (filling amount ≥60%), talc masterbatch or BaSO4 masterbatch, the HTS PLUS series extruders are recommended; if the enterprise produces high-end, special filler masterbatch (such as glass fiber reinforced masterbatch, masterbatch retardante u k'áak'), the HTS SUPER series extruders are the best choice; if the enterprise pursues large-scale, energy-saving and high-efficiency production, the HTE series extruders are suitable.
3.3.2 Determine the Production Capacity of the Extruder According to the Production Scale:
Enterprises should select the extruder with appropriate production capacity according to their own production scale and market demand. If the production scale is small (daily output less than 1 ton), the ZTE series or HTS BASIC series extruders with production capacity of 50-300kg/h are suitable; if the production scale is medium (daily output 1-5 toneladas), the HTS BASIC series or HTS PLUS series extruders with production capacity of 300-1000kg/h are suitable; if the production scale is large (daily output more than 5 toneladas), it is recommended to choose the HTS PLUS series, HTS SUPER series or HTE series extruders with production capacity of more than 1000kg/h.
3.3.3 Consider the Wear Resistance of the Equipment:
The wear resistance of the screw and barrel is a key factor affecting the service life and operating cost of the extruder. For enterprises that process high-hardness fillers (such as heavy calcium carbonate, talco) or high-filling masterbatch, it is necessary to select extruders with high wear resistance (such as screw and barrel with bimetallic composite treatment or laser cladding treatment), such as the HTS PLUS series and HTS SUPER series, to reduce the frequency of component replacement and maintenance cost.
3.3.4 Consider the Cost-Effectiveness of the Equipment:
Le jejelas ma' chéen k'a'abéet u páay óolal ti' u tojol inversión inicial ti' le nu'ukulil, ba'ale' xan considerar u tojol operativo in chowak plazo (bey u jantbil energía, u tojol u mantenimiento, u tojol u páajtal a repuesto). jéel bix, although the initial investment of the HTS SUPER series extruders is high, their wear resistance, stability and production efficiency are better, and the long-term operating cost is lower; the ZTE series extruders have a low initial investment, but their production capacity and wear resistance are limited, which is suitable for enterprises with limited budget and small-scale production.
3.3.5 Páaybe'en ti' le mayaj post-venta ti' le nu'ukulil:
Le mayaj post-venta ti' le nu'ukulil jach crucial utia'al u funcionamiento normal ti' le internet ichil producción. Le jejelas k'a'abéet u yéeyik fabricantes yéetel sistemas mayaj post-venta perfectos, ku páajtal u ts'aik instalación j-ka'ansajo'ob, puesta tu marcha, kapasitasion, mantenimiento yéetel áantajo'ob suministro páajtal a u repuesto. We have a professional after-sales service team, which can respond to customer needs in a timely manner (provide solutions within 24 oora'ob) and send technicians to the site for maintenance if necessary, ensuring the normal operation of the production line.
3.3.6 Consider the Flexibility and Expandability of the Equipment:
With the changes of market demand, enterprises may need to adjust their product types and filling amounts. Beytuno, when selecting extruders, enterprises should consider the flexibility and expandability of the equipment. Our extruders adopt a modular design, which can be freely combined and upgraded according to the needs of enterprises, improving the flexibility and expandability of the equipment, and reducing the cost of equipment transformation.
4. Application Fields and Usage Methods of Filler Masterbatch
Filler masterbatch, bey jump'éel aditivo funcional clave ti' le procesamiento plástico, has a wide range of application fields, covering various fields such as plastic packaging, kóonstruksion, automotriz, electrónica, daily necessities and agriculture. Its core role is to reduce the production cost of plastic products while improving or maintaining the basic performance of plastic products. The following will introduce the specific application fields and usage methods of filler masterbatch in detail:
4.1 Application Fields of Filler Masterbatch
Filler masterbatch can be used in the processing of various plastic products, and different types of filler masterbatch have different application focuses. The main application fields are as follows:
4.1.1 Plastic Packaging Industry:
This is the largest application field of filler masterbatch, ku ts'áaik cuenta ti' asab ti' 50% of the total application amount. Filler masterbatch is widely used in the production of plastic films, jiit'iko'ob plástico, woven bags, correas u embalaje, packaging containers and other packaging products.
- Plastic Films: Including plastic thin films, thick films, stretch films, greenhouse films, etc. The filler masterbatch used for plastic films is mainly light calcium carbonate filler masterbatch or barium sulfate filler masterbatch, which requires good dispersibility, ka'anal finura yéetel ma' impurezas, uti'al u yila'al wa le cha'ano' soplado mina'an ti'ob sak wíiniko'ob, boox manchas wa agujeros de alfileres, and maintains good transparency, toughness and tensile strength. Adding an appropriate amount of filler masterbatch can not only reduce the production cost of the film, ba'ale' xan ma'alo'obkíinsiko'ob u rigidez, heat resistance and dimensional stability of the film, and reduce the shrinkage rate of the film. jéel bix, in the production of plastic shopping bags, ku ts'áabal 1%-3% of CaCO3 filler masterbatch can reduce the cost by 5%-10% without affecting the toughness and load-bearing capacity of the bags.
- Plastic Bags: Including shopping bags, vest bags, garbage bags, food packaging bags, etc. The filler masterbatch used for plastic bags is mainly heavy calcium carbonate filler masterbatch, which has low cost and good wear resistance. Adding 2%-5% of filler masterbatch can reduce the cost and improve the rigidity and wear resistance of the bags. For garbage bags, adding an appropriate amount of filler masterbatch can also improve the toughness and tear resistance of the bags, making them not easy to break.
- Woven Bags and Packaging Belts: Woven bags are widely used in the packaging of grain, fertilizer, cemento, chemical products and other goods; packaging belts are used for the bundling of goods. The filler masterbatch used for woven bags and packaging belts is mainly heavy calcium carbonate filler masterbatch or talc filler masterbatch, which requires high rigidity and wear resistance. Adding 5%-10% of filler masterbatch can improve the rigidity, tensile strength and wear resistance of woven bags and packaging belts, reduce the cost, and extend the service life of the products.
- Packaging Containers: Including plastic bottles, plastic barrels, plastic boxes, etc. The filler masterbatch used for packaging containers is mainly barium sulfate filler masterbatch or light calcium carbonate filler masterbatch, which requires good transparency and chemical stability. Adding an appropriate amount of filler masterbatch can reduce the cost and improve the rigidity and impact strength of the containers.
4.1.2 Plastic Construction Industry:
Filler masterbatch is widely used in the production of plastic pipes, plastic profiles, plastic sheets, plastic tiles and other construction products.
- Plastic Pipes: Including PVC pipes, PE pipes, PP pipes, etc., which are used for water supply, drainage, gas transmission, cable protection and other fields. The filler masterbatch used for plastic pipes is mainly calcium carbonate filler masterbatch or talc filler masterbatch, which requires high rigidity, heat resistance and pressure resistance. Adding 5%-15% of filler masterbatch can improve the rigidity, heat distortion temperature and pressure resistance of the pipes, reduce the cost, and prevent the pipes from deforming under high temperature and pressure.
- Plastic Profiles: Including PVC profiles for doors and windows, plastic decorative profiles, etc. The filler masterbatch used for plastic profiles is mainly calcium carbonate filler masterbatch, which requires good weather resistance and impact strength. Adding 5%-10% of filler masterbatch can improve the rigidity, weather resistance and impact strength of the profiles, reduce the cost, and ensure the service life of the profiles in outdoor environments.
- Plastic Sheets: Including PVC sheets, le' PE, le' PP, etc., which are used for indoor decoration, embalaje, waterproofing and other fields. The filler masterbatch used for plastic sheets is mainly calcium carbonate filler masterbatch or barium sulfate filler masterbatch, which requires good flatness and toughness. Adding 3%-8% of filler masterbatch can reduce the cost and improve the rigidity and toughness of the sheets.
4.1.3 Plastic Injection Molding Industry:
Filler masterbatch is widely used in the production of various injection molding products, such as plastic daily necessities, plastic toys, plastic parts, plastic shells and so on.
- Plastic Daily Necessities: Including plastic bowls, plastic plates, plastic cups, plastic baskets, plastic buckets and other daily necessities. The filler masterbatch used for these products is mainly calcium carbonate filler masterbatch, which has low cost and good safety. Adding 2%-5% of filler masterbatch can reduce the cost and improve the rigidity and impact strength of the products, making them not easy to break.
- Plastic Toys: Including various plastic toys for children. The filler masterbatch used for plastic toys is mainly light calcium carbonate filler masterbatch or barium sulfate filler masterbatch, which requires high safety, non-toxicity, good dispersibility and no odor, in line with international toy safety standards (such as EN 71, ASTM F963). The particle size of the filler should be fine (yóok'ol 1250 malla) to avoid scratching children’s skin and ensure the smoothness of the toy surface. Adding 1%-3% of light calcium carbonate filler masterbatch can reduce the production cost of toys without affecting the toughness and colorability of the toys; barium sulfate filler masterbatch is suitable for transparent or semi-transparent plastic toys, which can improve the transparency and surface gloss of the toys, making them more beautiful.
- Plastic Parts and Shells: Including plastic parts for home appliances, automotive interior parts, electronic product shells, etc. The filler masterbatch used for these products is mainly talc filler masterbatch or glass fiber reinforced filler masterbatch, which requires high rigidity, heat resistance and impact strength. jéel bix, in the production of automotive interior parts (such as instrument panels, paneles joolnajo'), ku ts'áabal 5%-8% of talc filler masterbatch can improve the rigidity and heat distortion temperature of the parts, reduce the shrinkage rate, and make the parts not easy to deform under high temperature environment in the car; in the production of electronic product shells (such as mobile phone shells, router shells), ku ts'áabal 3%-5% of glass fiber reinforced filler masterbatch can improve the impact strength and dimensional accuracy of the shells, enhancing the durability of the products.
4.1.4 Automotive Plastic Industry:
With the trend of lightweight and energy saving in the automotive industry, plastic materials are widely used in automotive manufacturing, and filler masterbatch, as an important functional additive, plays a key role in reducing costs and improving performance. The application of filler masterbatch in the automotive plastic industry is mainly concentrated in automotive interior parts, exterior parts and functional parts.
- Automotive Interior Parts: Including instrument panels, paneles joolnajo', seat cushions, armrests, etc. These parts have high requirements on rigidity, resistencia ti' le ooxoj, low odor and environmental protection. Talc filler masterbatch and calcium carbonate filler masterbatch are the most commonly used products. Talc filler masterbatch can significantly improve the rigidity and heat resistance of polypropylene (PP) ba'alo'ob, making the interior parts have good dimensional stability; calcium carbonate filler masterbatch has the advantages of low cost and good processing fluidity, which can reduce the production cost of interior parts. jéel bix, ku ts'áabal 6%-10% of talc filler masterbatch to PP instrument panels can improve the heat distortion temperature by 15-25℃, and reduce the production cost by 8%-12%.
- Automotive Exterior Parts: Including bumpers, guardabarros, door handles, etc. These parts are exposed to the outdoor environment for a long time, so they have high requirements on weather resistance, impact strength and UV resistance. The filler masterbatch used for exterior parts is mainly talc filler masterbatch or barium sulfate filler masterbatch, which is usually compounded with weather-resistant additives. Adding 4%-7% of talc filler masterbatch can improve the impact strength and rigidity of the exterior parts, enhance their resistance to external impact; barium sulfate filler masterbatch can improve the weather resistance and color retention of the exterior parts, making them not easy to fade and aging under the action of sunlight and rain.
- Automotive Functional Parts: Including air intake pipes, cooling system parts, battery casings, etc. These parts have high requirements on heat resistance, chemical resistance and mechanical properties. The filler masterbatch used for functional parts is mainly glass fiber reinforced filler masterbatch or special mineral filler masterbatch. jéel bix, ku ts'áabal 10%-15% of glass fiber reinforced filler masterbatch to the air intake pipe can improve the heat resistance and pressure resistance of the pipe, ensuring its normal operation under high temperature and high pressure; adding barium sulfate filler masterbatch to the battery casing can improve the radiation resistance and chemical stability of the casing, ensuring the safety of the battery.
4.1.5 Electronic and Electrical Plastic Industry:
Electronic and electrical products have high requirements on the flame retardancy, aislamiento, dimensional accuracy and heat resistance of plastic materials. Filler masterbatch is widely used in the production of plastic parts of electronic and electrical products, such as wire and cable sheaths, transformer casings, connector housings, etc.
- Wire and Cable Sheaths: The plastic sheaths of wires and cables need to have good insulation, resistencia ti' le desgaste, flame retardancy and weather resistance. The filler masterbatch used for wire and cable sheaths is mainly calcium carbonate filler masterbatch or flame-retardant filler masterbatch. Adding 3%-6% of calcium carbonate filler masterbatch can improve the wear resistance and rigidity of the sheath, reduce the cost; flame-retardant filler masterbatch (such as magnesium hydroxide, aluminum hydroxide filler masterbatch) can improve the flame retardancy of the sheath, preventing the spread of fire in case of short circuit, ensuring the safety of the circuit.
- Transformer Casings and Connector Housings: These parts need to have good insulation, heat resistance and dimensional accuracy. The filler masterbatch used is mainly talc filler masterbatch or glass fiber reinforced filler masterbatch. Adding 5%-8% of talc filler masterbatch can improve the heat resistance and dimensional stability of the parts, making them not easy to deform under long-term high temperature operation; glass fiber reinforced filler masterbatch can improve the impact strength and insulation of the parts, ensuring the normal operation of electronic and electrical products.
4.1.6 Agricultural Plastic Industry:
Agricultural plastic products (such as greenhouse films, mulch films, irrigation pipes, fertilizer bags) have the characteristics of large dosage, low cost and harsh use environment. Filler masterbatch can effectively reduce the production cost of agricultural plastic products and improve their service life.
- Greenhouse Films and Mulch Films: These products need to have good transparency, muuk'il, weather resistance and anti-aging properties. The filler masterbatch used is mainly light calcium carbonate filler masterbatch or barium sulfate filler masterbatch. Adding 1%-4% of light calcium carbonate filler masterbatch can reduce the cost of the film, improve its toughness and anti-aging properties, and extend the service life of the film; barium sulfate filler masterbatch can improve the transparency and light transmittance of the film, which is conducive to the photosynthesis of crops.
- Irrigation Pipes and Fertilizer Bags: Irrigation pipes need to have good pressure resistance and wear resistance; fertilizer bags need to have good toughness and wear resistance. The filler masterbatch used is mainly heavy calcium carbonate filler masterbatch or talc filler masterbatch. Adding 5%-10% of heavy calcium carbonate filler masterbatch can improve the pressure resistance and wear resistance of irrigation pipes, reduce the cost; ku ts'áabal 3%-6% of talc filler masterbatch can improve the toughness and wear resistance of fertilizer bags, making them not easy to break during transportation and use.
4.2 Usage Methods of Filler Masterbatch
The correct use of filler masterbatch is crucial to ensure the quality of plastic products and give full play to the performance of the masterbatch. The usage methods of filler masterbatch mainly include mixing ratio, mixing method, processing parameter adjustment and precautions. The specific operation points are as follows:
4.2.1 Determination of Mixing Ratio:
The mixing ratio of filler masterbatch and base plastic (carrier resin of plastic products) is mainly determined by the filling amount of the masterbatch, the performance requirements of the final product and the processing capacity of the equipment. The general mixing ratio range is 1%-20%, and the specific ratio can be adjusted according to the following principles:
- For plastic products with low performance requirements and high cost control requirements (such as ordinary plastic bags, garbage bags), the mixing ratio can be 5%-20% (using low-to-medium filling calcium carbonate filler masterbatch);
- For plastic products with medium performance requirements (bey u cha'ano'ob plástico, ordinary injection molding parts), the mixing ratio can be 2%-8% (using medium filling calcium carbonate, talc or barium sulfate filler masterbatch);
- For plastic products with high performance requirements (bey u páajtal a automotriz, electronic product shells, high-grade films), the mixing ratio can be 1%-5% (using high-filling, high-performance talc, barium sulfate or glass fiber reinforced filler masterbatch);
- For transparent or semi-transparent plastic products (such as plastic bottles, transparent films), the mixing ratio should be controlled at 1%-3%, and barium sulfate or light calcium carbonate filler masterbatch with fine particle size (yóok'ol 1250 malla) should be selected to avoid affecting the transparency of the products.
4.2.2 Mixing Method:
The mixing of filler masterbatch and base plastic should ensure uniformity, so as to avoid local agglomeration of the masterbatch and affect the performance of the final product. The common mixing methods include dry mixing and wet mixing, among which dry mixing is the most widely used in industrial production.
- Dry Mixing: This method is suitable for most filler masterbatch and base plastic (bey PE, PP, PVC). The specific steps are: yáaxil, dry the base plastic particles and filler masterbatch to remove moisture (the moisture content should be controlled below 0.5%); then, put the base plastic particles and filler masterbatch into a high-speed mixer according to the determined mixing ratio, and add an appropriate amount of lubricant (if necessary) to mix uniformly. The mixing speed is generally 500-800 rpm, and the mixing time is 3-5 minuto'ob. After mixing, the mixture can be directly sent to the extruder or injection molding machine for processing. The advantages of dry mixing are simple operation, ka'anal eficiencia, low cost and no pollution to the product.
- Wet Mixing: This method is suitable for filler masterbatch with poor dispersibility or base plastic with high viscosity (such as PVC paste). The specific steps are: mix the filler masterbatch with an appropriate amount of solvent (such as plasticizer, solvent oil) to form a paste, then add the paste to the base plastic and stir uniformly, and finally remove the solvent through heating or drying. The advantages of wet mixing are good mixing effect and uniform dispersion of the masterbatch; the disadvantages are complex operation, high cost, and easy residual solvent affecting the product quality. Beytuno, wet mixing is only used in special cases.
4.2.3 Adjustment of Processing Parameters:
When adding filler masterbatch to plastic processing, the processing parameters (such as temperature, presion, velocidad le tornillo) need to be properly adjusted according to the type and filling amount of the masterbatch to ensure the smooth progress of processing and the quality of the final product.
- Temperature Adjustment: The addition of filler masterbatch will increase the viscosity of the mixture, so the processing temperature needs to be appropriately increased by 5-15℃ compared with the processing temperature of pure base plastic. jéel bix, when processing PE plastic with calcium carbonate filler masterbatch, the processing temperature can be increased by 5-10℃; when processing PP plastic with talc filler masterbatch, the processing temperature can be increased by 10-15℃. It should be noted that the temperature should not be too high to avoid thermal decomposition of the base plastic and additives.
- Pressure Adjustment: The addition of filler masterbatch will increase the resistance during processing, so the processing pressure (presión u extrusión, injection pressure) needs to be appropriately increased by 10%-20%. jéel bix, when extruding plastic pipes with filler masterbatch, the extrusion pressure can be increased by 10%-15% to ensure the compactness and dimensional accuracy of the pipes; when injecting plastic parts with filler masterbatch, the injection pressure can be increased by 15%-20% to avoid defects such as insufficient filling and shrinkage.
- Screw Speed Adjustment: The screw speed should be adjusted according to the type and filling amount of the masterbatch. For high-filling masterbatch or masterbatch with poor dispersibility, the screw speed can be appropriately increased by 10%-15% to enhance the shear force and mixing effect, ensuring the uniform dispersion of the filler; for low-filling masterbatch or masterbatch with good dispersibility, the screw speed can be kept unchanged or slightly reduced to reduce energy consumption and wear of equipment.
4.2.4 Precautions for Use:
In the process of using filler masterbatch, the following precautions should be paid attention to to avoid affecting the processing effect and product quality:
- Moisture Prevention: Filler masterbatch (especially calcium carbonate, talc masterbatch) is easy to absorb moisture, which will cause bubbles, pinholes and other defects in the final product. Beytuno, the masterbatch should be stored in a dry, almacén síis yéetel ventilado, and should be dried before use (the drying temperature is 80-100℃, yéetel u k'iinil u tijil 2-4 oora'ob).
- Compatibilidad: The carrier resin of the filler masterbatch should be consistent with or compatible with the base plastic of the product. jéel bix, PE filler masterbatch should be used with PE base plastic, and PP filler masterbatch should be used with PP base plastic. If the carrier resin is incompatible with the base plastic, it will affect the compatibility between the masterbatch and the base plastic, resulting in poor dispersibility and reduced product performance.
- Uniform Mixing: The filler masterbatch and base plastic must be mixed uniformly. If the mixing is uneven, local agglomeration of the masterbatch will occur, ts'áaik tumen resultado defectos bey manchas sak wíiniko'ob, black spots and agglomeration in the product, affecting the appearance and performance of the product.
- Dosage Control: The dosage of filler masterbatch should not exceed the maximum filling amount applicable to the equipment and product performance. Excessive dosage will lead to poor dispersibility, low toughness, poor processing fluidity and other problems of the product; insufficient dosage will not achieve the effect of cost reduction and performance improvement.
- Storage Period: The filler masterbatch has a certain storage period (maantats' 6-12 wi'inal). If the storage period is exceeded, the masterbatch may absorb moisture, agglomerate or the performance of additives may degrade, affecting the use effect. Beytuno, the masterbatch should be used within the storage period.
5. Common Problems and Solutions in Filler Masterbatch Production
In the production process of filler masterbatch, due to the influence of raw materials, formula, processing equipment and processing parameters, various problems may occur, which affect the quality and production efficiency of the masterbatch. This chapter will summarize the common problems in filler masterbatch production, analyze their causes, and put forward targeted solutions to help enterprises solve production pain points and improve product quality stability.
5.1 Common Quality Problems of Filler Masterbatch and Their Solutions
5.1.1 Poor Dispersibility of Filler Masterbatch:
This is the most common quality problem in filler masterbatch production. The main manifestations are: the masterbatch has agglomeration, and after mixing with the base plastic, white spots, black spots or agglomeration appear in the final product, which affects the appearance and performance of the product.
Causes: 1) The particle size of the inorganic filler is too large or uneven, and the agglomerates are not broken during premixing; 2) The dosage of dispersant is insufficient or the type of dispersant is inappropriate, which cannot effectively prevent the agglomeration of the filler; 3) The premixing effect is poor, and the filler, carrier resin and additives are not mixed uniformly; 4) The shear force of the extruder is insufficient, and the agglomerates of the filler cannot be fully broken during extrusion; 5) The processing temperature is too low, and the carrier resin is not fully melted, which affects the dispersion of the filler.
Soluciones: 1) Select inorganic fillers with fine and uniform particle size (maantats' 800-2000 malla), and sieve the fillers before use to remove large particles and agglomerates; 2) Increase the dosage of dispersant appropriately (within the range of 1%-3% of the filler dosage) or replace with a dispersant compatible with the filler and carrier resin; 3) Optimize the premixing process, increase the mixing speed (800-1200 rpm) and mixing time (5-10 minuto'ob), and control the mixing temperature at 40-60℃ to improve the premixing uniformity; 4) Adjust the screw structure of the extruder, increase the number of shearing elements, or increase the screw speed to enhance the shear force; 5) Appropriately increase the processing temperature of the extruder to ensure that the carrier resin is fully melted, which is conducive to the dispersion of the filler.
5.1.2 Uneven Particle Size of Filler Masterbatch:
The main manifestations are: the particle size of the masterbatch varies greatly, some particles are too large, some are too small, and there are more powdery materials, which affects the fluidity of the masterbatch and the uniformity of mixing with the base plastic.
Causes: 1) The size of the die hole of the extruder die head is uneven or blocked; 2) The extrusion speed and the cutting speed of the granulator are not matched; 3) The cooling effect is poor, and the strips are not fully solidified before cutting, resulting in uneven cutting; 4) The viscosity of the mixture is uneven, and the extrusion speed of the strips is inconsistent.
Soluciones: 1) Clean the die head regularly, check and replace the die plate with uneven die holes, ensure that the size of each die hole is consistent; 2) Adjust the extrusion speed and the cutting speed of the granulator to make them matched (the cutting speed should be slightly higher than the extrusion speed of the strips); 3) Optimize the cooling process, increase the cooling water flow or extend the cooling time, ensure that the strips are fully solidified (the surface temperature of the strips after cooling is 20-30℃); 4) Adjust the formula ratio and processing parameters to ensure the uniform viscosity of the mixture, and avoid the inconsistency of the extrusion speed of the strips.
5.1.3 Low Melting Index of Filler Masterbatch
The main manifestations are: the fluidity of the masterbatch is poor, it is difficult to mix with the base plastic during processing, and the processing efficiency is low, which even leads to equipment blockage.
Causes:
- The filling amount of the filler is too high, which increases the viscosity of the masterbatch and reduces the fluidity;
- The type of carrier resin is inappropriate (the melting index of the carrier resin is too low);
- The processing temperature is too low, and the carrier resin is not fully melted;
- The dosage of lubricant is insufficient, which increases the friction between the materials and affects the fluidity.
Soluciones:
- Reduce the filling amount of the filler appropriately, or select a filler with better dispersibility to improve the fluidity;
- Replace the carrier resin with a higher melting index (jéel bix, use PE carrier resin with a melting index of 2-5g/10min for PE filler masterbatch);
- Appropriately increase the processing temperature of the extruder to ensure that the carrier resin is fully melted, improving the fluidity of the masterbatch;
- Increase the dosage of lubricant appropriately (within the range of 0.3%-1%), reduce the friction between the materials, and improve the fluidity.
5.1.4 Yellowing of Filler Masterbatch
The main manifestations are: the color of the masterbatch turns yellow, which affects the appearance of the final plastic product (especially light-colored products).
Causes:
- The thermal stability of the carrier resin is poor, and thermal decomposition occurs at high processing temperatures;
- The additives (bey le dispersantes, lubricantes) are decomposed at high temperatures, producing yellow substances;
- The processing temperature is too high, leading to the oxidation and yellowing of the masterbatch;
- The filler contains impurities (such as iron oxide), which causes the masterbatch to turn yellow.
Soluciones:
- Select carrier resin with good thermal stability (such as adding antioxidants to the carrier resin);
- Replace additives with good thermal stability, avoid using additives that are easy to decompose at high temperatures;
- Reduce the processing temperature appropriately, avoid the oxidation and decomposition of the masterbatch;
- Screen the filler before use, remove impurities, and select fillers with high purity (such as calcium carbonate with a whiteness of ≥93).
5.1.5 High Moisture Content of Filler Masterbatch
The main manifestations are: bubbles, pinholes and other defects appear in the final plastic product after the masterbatch is mixed with the base plastic.
Causes:
- The filler is not dried thoroughly, and the moisture content exceeds 0.5%;
- The carrier resin or additives contain moisture;
- The masterbatch absorbs moisture during storage (stored in a humid environment);
- The premixing process is carried out in a humid environment, and the materials absorb moisture.
Soluciones:
- Extend the drying time of the filler (drying temperature 80-100℃, drying time 3-5 oora'ob), and detect the moisture content of the filler to ensure that it is below 0.5%;
- Dry the carrier resin and additives before use to remove moisture;
- Store the masterbatch in a dry, almacén síis yéetel ventilado, and seal the packaging to prevent moisture absorption;
- Carry out the premixing process in a dry environment, and avoid the materials absorbing moisture from the air.
5.2 Common Production Equipment Problems and Their Solutions
5.2.1 Extruder Blockage
This is a common equipment problem in filler masterbatch production, which mainly occurs in the feeding section, melting section or die head of the extruder. The main manifestations are: the extrusion speed decreases sharply, the extrusion pressure rises rapidly, and even the equipment stops running.
Causes:
- The moisture content of the materials is too high, and the materials caking during extrusion;
- The processing temperature is too low, and the carrier resin is not fully melted, which accumulates in the extruder barrel;
- The materials contain impurities (such as stones, metals), which block the screw or die head;
- The screw speed is too low, and the materials cannot be pushed forward smoothly, resulting in accumulation;
- The die head is not cleaned regularly, and the residual materials block the die holes.
Soluciones:
- Stop the machine immediately, cut off the power supply, and dry the materials thoroughly before restarting;
- Increase the processing temperature of the extruder, and wait for the materials in the barrel to be fully melted before continuing to extrude;
- Disassemble the extruder, remove the impurities blocking the screw or die head, and screen the materials before use to remove impurities;
- Increase the screw speed appropriately to ensure that the materials are pushed forward smoothly;
- Clean the die head regularly (after each production batch) to remove residual materials and avoid die hole blockage.
5.2.2 Severe Wear of Extruder Screw and Barrel
The main manifestations are: the shear force and extrusion pressure of the extruder decrease, the dispersibility of the masterbatch becomes poor, the production efficiency decreases, and the screw and barrel have obvious wear marks.
Causes:
- The filler has high hardness (such as heavy calcium carbonate, talco) and long-term friction with the screw and barrel;
- The materials contain impurities (such as metals, stones), which accelerate the wear of the screw and barrel;
- The processing temperature is too low, and the materials have high viscosity, which increases the friction between the materials and the screw, barril;
- The screw and barrel are made of materials with poor wear resistance.
Soluciones:
- Select extruders with high wear resistance (such as screw and barrel with bimetallic composite treatment or laser cladding treatment), such as our HTS PLUS series and HTS SUPER series extruders;
- Screen the materials before use to remove impurities, and select fillers with appropriate hardness;
- Appropriately increase the processing temperature to reduce the viscosity of the materials and reduce friction;
- Regularly check the wear degree of the screw and barrel, and replace the worn components in time;
- Add an appropriate amount of lubricant to the materials to reduce the friction between the materials and the screw, barril.
5.2.4 Unstable Temperature Control of Extruder
The main manifestations are: the temperature of each section of the extruder fluctuates greatly (exceeding ±1℃), resulting in uneven melting of the materials, poor dispersibility of the masterbatch, and unstable product quality.
Causes:
- The temperature control system of the extruder is faulty (such as temperature sensor damage, heating ring failure);
- The cooling system of the extruder is abnormal (such as insufficient cooling water flow, cooling fan failure);
- The processing environment temperature fluctuates greatly, affecting the temperature control of the extruder;
- The heating power of the extruder is insufficient or uneven.
Soluciones:
- Check the temperature control system regularly, replace the damaged temperature sensor and heating ring, and calibrate the temperature control instrument;
- Check the cooling system, ensure sufficient cooling water flow, and repair the faulty cooling fan;
- Control the processing environment temperature (keep it at 20-30℃), avoid large temperature fluctuations;
- Increase the heating power of the extruder appropriately, or check the heating circuit to ensure uniform heating of each section.
6. Conclusion and Outlook
Filler masterbatch, as a key functional additive in the plastic processing industry, plays an irreplaceable role in reducing production costs, ma'alo'obkíinsiko'ob u meyaj le producto yéetel ma'alo'obkíinsiko'ob u eficiencia le procesamiento. With the rapid development of the global plastic industry and the continuous upgrading of downstream product requirements, the filler masterbatch industry is moving towards high performance, funcionalización, high filling amount, kanáanil ka'a jeets'el yéetel na'at. Extrusion granulation technology, bey le ma'alo'obtal núcleo ti' le producción masterbatch relleno, directly determines the quality and competitiveness of the masterbatch. The performance of extruders is the key to ensuring the stable production of high-quality filler masterbatch.
We have developed a full range of twin-screw extruder products (HTS BASIC series, HTS PLUS series, HTS SUPER series, ZTE series, HTE series) according to the characteristics of filler masterbatch raw materials and processing requirements. Our extruders have the advantages of high wear resistance, strong shearing and mixing capacity, kaambalil yo'osal u temperatura jach jaaj, amplia gama u ka'anatako'ob, high production efficiency and low energy consumption, which can meet the processing needs of various types and different filling amounts of filler masterbatch. By providing targeted extruder products and professional processing solutions, we help filler masterbatch manufacturers solve production pain points, improve production efficiency, asegurar u ma'alobil le producto, yéetel u náajaltik jump'éel ventaja competitiva ti' le feroz ketlamo' k'íiwiko'.
Looking forward to the future, with the continuous advancement of science and technology and the increasingly strict environmental protection policies, the filler masterbatch industry will face new opportunities and challenges. On the one hand, the demand for high-performance, functional and environmental protection filler masterbatch (such as degradable filler masterbatch, flame-retardant and antistatic filler masterbatch) will continue to grow, which will put higher requirements on extrusion technology and equipment performance; tu láak' tséel, the intelligence and automation level of production equipment will continue to improve, and intelligent granulation production lines integrating raw material pretreatment, extrusion granulation, screening packaging and data monitoring will become the development trend.
We will continue to focus on the research and development of extrusion technology and equipment, keep up with the development trend of the filler masterbatch industry, continuously optimize product performance, develop more high-performance, energy-saving and intelligent extruders and granulation production lines, and provide more professional and comprehensive solutions for filler masterbatch manufacturers. Te' k'iino' je'el xano' k'iin, we will strengthen cooperation with upstream and downstream enterprises in the industry, promote the technological progress and high-quality development of the filler masterbatch industry, and make greater contributions to the sustainable development of the global plastic industry.