With the rapid development of the global plastic industry, the demand for plastic products is increasing day by day, and the requirements for product performance, cost control and environmental protection are also becoming more and more stringent. Filler masterbatch, as a key functional additive in plastic processing, has been widely used in various fields of plastic production due to its advantages of reducing production costs, improving product performance and optimizing processing efficiency. We are committed to providing advanced granulation production lines and high-performance extruders for various types of filler masterbatch, relying on rich experience in extrusion technology research and development and manufacturing, kupereka chandamale, mayankho ogwira mtima komanso odalirika opanga ma filler masterbatch, kuthandiza mabizinesi kupititsa patsogolo luso la kupanga, kuonetsetsa khalidwe la mankhwala, ndikupeza mwayi wampikisano mumpikisano wowopsa wamsika.
Nkhaniyi ifotokoza za gawo la filler masterbatch, kufotokoza mozama mfundo zoyambira, gulu, kupanga kwa filler masterbatch, gawo lalikulu laukadaulo wa extrusion pakupanga kwake granulation, ubwino wa mndandanda wathu wa extruder ndi kusintha kwawo komwe akutsata kuti azitha kudzaza masterbatch processing, komanso magawo enieni ogwiritsira ntchito, njira zogwiritsira ntchito ndi mavuto omwe amapezeka ndi mayankho pakupanga. Idzawonjezera mwatsatanetsatane magawo aukadaulo, tsatanetsatane wa ndondomeko ndi mfundo zowawa zamakampani kuti alemeretse zomwe zili, kwaniritsani zowerengera za mawu za 3000-4000 mawu, ndikupereka chidziwitso chokwanira komanso chaukadaulo kwa mabizinesi oyenera ndi akatswiri mumakampani a filler masterbatch.
1. Mwachidule cha Filler Masterbatch Viwanda ndi Zochita Zazitundu
1.1 Mkhalidwe Wamakono ndi Kachitidwe Kakulidwe ka Filler Masterbatch Viwanda
Mzaka zaposachedwa, motsogozedwa ndi kutukuka kofulumira kwa mafakitale akumunsi monga ma CD, kumanga, zamagalimoto, zamagetsi ndi zofunikira zatsiku ndi tsiku, msika wapadziko lonse wa filler masterbatch wawonetsa mayendedwe okhazikika. Filler masterbatch ndi mtundu wazinthu zophatikizika zomwe zimapangidwa ndi kusakaniza, kusungunuka, extruding ndi granulating inorganic fillers (monga calcium carbonate, talc, barium sulphate, ndi zina.) ndi zonyamula polima (monga polyethylene, polypropylene, polyvinyl chloride, ndi zina.) ndi zowonjezera zoyenera (monga obalalitsa, ogwirizana, mafuta opangira mafuta, ndi zina.) mu gawo linalake. Its core function is to reduce the production cost of plastic products while improving or maintaining the basic performance of plastic products.
According to relevant data statistics, the global filler masterbatch market size has exceeded 20 billion US dollars, and it is expected to maintain a growth rate of 6%-9% in the next few years. Among them, calcium carbonate (CaCO3) filler masterbatch is the most widely used product type, accounting for more than 60% of the total filler masterbatch market, followed by talc filler masterbatch, barium sulphate (BaSO4) filler masterbatch and other special filler masterbatches. The Asia-Pacific region is the world’s largest filler masterbatch production and consumption market, accounting for more than 50% of the global market share, which is mainly due to the rapid development of the plastic processing industry in China, India and other countries, kufunikira kwakukulu kochepetsera mtengo komanso kukonza magwiridwe antchito azinthu zamapulasitiki, ndi kupititsa patsogolo mphamvu zothandizira mafakitale.
Chitukuko chamakampani a filler masterbatch chimawonetsedwa makamaka muzinthu zinayi: choyamba, mkulu ntchito ndi functionalization. Ndi kukulitsa zofunika kunsi kwa pulasitiki mankhwala, filler masterbatch sikulinso kuchepetsa mtengo, koma pang'onopang'ono akukula ku functionalization, monga kukonza kusasunthika, kulimba, kukana kutentha, kukana nyengo ndi zotchinga katundu wa zinthu pulasitiki, ndikupanga ma masterbatches apadera opangira ma filler monga flame retardant, antistatic ndi antibacterial; chachiwiri, kudzaza kwakukulu komanso dispersibility yabwino. Pansi pamalingaliro owonetsetsa kuti zinthu zikuyenda bwino, kuchulukitsa kuchuluka kwa zodzaza ma inorganic fillers kumatha kuchepetsanso ndalama zopangira, 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; chachitatu, environmental protection and low pollution. Ndi kulimbikitsa mfundo zoteteza zachilengedwe padziko lonse lapansi komanso kupititsa patsogolo chidziwitso chachitetezo cha chilengedwe, 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; fourth, 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, kuwongolera magwiridwe antchito, kuchepetsa ndalama zogwirira ntchito ndikuwonetsetsa kukhazikika kwazinthu.
Potsutsana ndi izi, Extrusion granulation luso, monga ukadaulo woyambira wopanga filler masterbatch, chakhala kiyi pakuzindikira mtundu wa filler masterbatch ndi mpikisano wamabizinesi. Kuchita kwa extruders kumakhudza mwachindunji dispersibility, mawonekedwe a particle, melting index ndi zizindikiro zina zazikulu za filler masterbatch. Akatswiri athu opangira ma extruder ndi mizere yopanga granulation ya filler masterbatch amapangidwa potengera mawonekedwe amakampani komanso kufunikira kwa msika., zomwe zimatha kuthetsa zowawa mu filler masterbatch processing (monga kusabalalika bwino, particle size, kudzaza kochepa, kugwiritsa ntchito mphamvu zambiri, ndi zina.) and help enterprises achieve high-quality and efficient production.
1.2 Classification of Filler Masterbatch and Its Core Characteristics
Filler masterbatch can be divided into different types according to the type of filler, carrier resin, application field and filling amount. Each type of filler masterbatch has its own unique characteristics and applicable scenarios. The following is a detailed introduction to the common classification and core characteristics of filler masterbatch:
1.2.1 Classification by Filler Type:
This is the most common classification method for filler masterbatch. According to the type of inorganic filler, it can be mainly divided into calcium carbonate (CaCO3) filler masterbatch, talc filler masterbatch, barium sulphate (BaSO4) filler masterbatch, and other special filler masterbatches (such as kaolin filler masterbatch, carbon black filler masterbatch, glass fiber filler masterbatch, ndi zina.).
- Calcium Carbonate (CaCO3) Filler Masterbatch: It is the most widely used filler masterbatch with the lowest cost. The filler is mainly light calcium carbonate or heavy calcium carbonate. Light calcium carbonate has fine particle size, good dispersibility and high whiteness, which is suitable for plastic products with high requirements on appearance and fineness (such as plastic films, injection molding products); heavy calcium carbonate has high hardness, good wear resistance and low price, which is suitable for plastic products with high requirements on rigidity and cost control (such as woven bags, packaging belts, mapaipi, ndi zina.). Calcium carbonate filler masterbatch can not only reduce production costs, but also improve the rigidity, heat resistance and dimensional stability of plastic products, and has a certain lubricating effect, which can improve the processing fluidity of plastics.
- 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, and is widely used in automotive parts, zipolopolo zanyumba, plastic pipes and other fields that require high performance.
- Barium Sulfate (BaSO4) Filler Masterbatch: The filler is barium sulfate powder, which has high whiteness, good transparency, chemical inertness and radiation resistance. Barium sulfate filler masterbatch is suitable for plastic products with high requirements on transparency, whiteness and chemical stability (such as plastic films, plastic bottles, medical plastic products, ndi zina.), ndipo itha kugwiritsidwanso ntchito muzinthu zapulasitiki zosapanga radiation (monga zida zodzitetezera kuchipatala, Zida zamagetsi a nyukiliya, ndi zina.).
1.2.2 Kugawidwa ndi Carrier Resin:
Malinga ndi mtundu wa chonyamulira utomoni ntchito, filler masterbatch akhoza kugawidwa mu polyethylene (PE) filler masterbatch, polypropylene (PP) filler masterbatch, polyvinyl chloride (Zithunzi za PVC) filler masterbatch, polyethylene terephthalate (PET) filler masterbatch, ndi zina. Kusankhidwa kwa utomoni wonyamulira kumatsimikiziridwa makamaka ndi mtundu wa zinthu zapulasitiki zotsika. Mwachitsanzo, PE filler masterbatch ndi yoyenera pazinthu zapulasitiki za PE (such as plastic films, matumba, mapaipi); PP filler masterbatch ndi yoyenera pazinthu zapulasitiki za PP (such as woven bags, jekeseni akamaumba ziwalo, zida zamagalimoto); PVC filler masterbatch ndi yoyenera pazinthu zapulasitiki za PVC (monga mapaipi a PVC, mbiri, mapepala).
1.2.3 Kugawikana ndi Application Field:
Malinga ndi ntchito munda wa kunsi kwa mtsinje mankhwala pulasitiki, filler masterbatch ikhoza kugawidwa mufilimu-grade filler masterbatch, injection-grade filler masterbatch, extrusion-grade filler masterbatch, blow molding-grade filler masterbatch, ndi zina. Film-grade filler masterbatch requires good dispersibility, high fineness and no impurities, to ensure that the blown film has no white spots, black spots or pinholes, and maintains good transparency and toughness; injection-grade filler masterbatch requires good fluidity and uniform particle size, to adapt to the rapid injection molding process and ensure the appearance and dimensional accuracy of injection products; extrusion-grade filler masterbatch requires good thermal stability and mechanical properties, to adapt to the high-temperature and high-pressure extrusion process of pipes, profiles and other products.
1.2.4 Classification by Filling Amount:
According to the filling amount of inorganic fillers, filler masterbatch can be divided into low-filling masterbatch (filling amount 30%-50%), medium-filling masterbatch (filling amount 50%-70%) and high-filling masterbatch (filling amount 70% and above). The filling amount is determined according to the performance requirements of downstream products and the processing capacity of equipment. High-filling masterbatch has more obvious cost reduction effect, but it has higher requirements on the dispersibility of fillers and the performance of extruders—only high-performance extruders can ensure the uniform mixing and melting of high-filling materials, avoiding agglomeration and poor processing fluidity.
It is worth noting that the core performance indicators of filler masterbatch mainly include dispersibility, particle size uniformity, melting index, whiteness (for light-colored products) and compatibility with carrier resin. Among them, dispersibility ndiye chizindikiro chofunikira kwambiri - kusayenda bwino kumabweretsa kugawa kosafanana kwa zodzaza muzinthu zapulasitiki., kumabweretsa zolakwika monga mawanga oyera, mawanga akuda, agglomeration ndi brittle products, zomwe zimakhudza kwambiri mawonekedwe ndi magwiridwe antchito apulasitiki. Choncho, kusankha kwa zida zapamwamba zowonjezera komanso ukadaulo waukadaulo wasayansi ndikofunikira kuti zitsimikizire kufalikira komanso mtundu wonse wa filler masterbatch.
2. Core Technology ya Filler Masterbatch Production: Extrusion Granulation Technology
Ukadaulo wa Extrusion granulation ndiye ukadaulo woyambira wopanga ma filler masterbatch, zomwe zimagwirizanitsa kusakaniza, kusungunuka, kumeta ubweya, kubalalitsidwa ndi granulation. Iwo ali ubwino mkulu kupanga dzuwa, zabwino mankhwala khalidwe, kusinthika kwamphamvu kuzinthu zopangira komanso kusiyanasiyana kogwiritsa ntchito. In the production of filler masterbatch, extrusion granulation technology is mainly used to realize the uniform dispersion of inorganic fillers in the polymer carrier, melt and plasticize the mixture, and then extrude and granulate to form granular filler masterbatch with uniform size, good fluidity and stable performance. The quality of extrusion granulation directly determines the key performance indicators of filler masterbatch, such as dispersibility, particle size and melting index.
2.1 Characteristics of Filler Masterbatch Raw Materials and Requirements for Extrusion Equipment
The raw materials of filler masterbatch mainly include three parts: inorganic fillers (such as CaCO3, talc, BaSO4), polymer carriers (such as PE, PP, Zithunzi za PVC) ndi zowonjezera (monga obalalitsa, ogwirizana, mafuta opangira mafuta, antioxidants, ndi zina.). The characteristics of these raw materials are quite different, zomwe zimayika patsogolo zofunikira zapadera za zida za extrusion:
Choyamba, ma inorganic fillers ali ndi kuuma kwakukulu, kusagwirizana bwino ndi zonyamula polima, ndi zosavuta agglomerate. Ambiri inorganic fillers (such as CaCO3, talc) ndi hydrophilic, pamene zonyamula ma polima ndi hydrophobic, zomwe zimabweretsa kusalumikizana bwino pakati pa zodzaza ndi zonyamulira. Ngati kusakaniza ndi kumeta sikukwanira, fillers adzakhala agglomerate, amene sangathe uniformly omwazika mu chonyamulira, zomwe zimapangitsa kuti pakhale kusakwanira kwa filler masterbatch. Kuphatikiza apo, kuuma kwakukulu kwa ma inorganic fillers kumayambitsa kuwonongeka kwakukulu kwa wononga ndi mbiya ya extruder panthawi ya extrusion, zomwe zimafunikira wononga ndi mbiya ya extruder kuti ikhale yolimba kwambiri.
Chachiwiri, kusakaniza kwa filler masterbatch kumakhala ndi kukhuthala kwakukulu komanso kusayenda bwino kwamadzi. 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.
Chachitatu, the processing temperature range is narrow. Different carrier resins have different melting points and thermal stability. Mwachitsanzo, 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℃). Choncho, 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. Because the single-screw extruder has a narrow shear range, poor pumping capacity and no self-cleaning effect. When processing high-viscosity and high-filler mixtures, it is easy to cause material accumulation, blockage and uneven mixing in the extruder barrel, resulting in poor dispersibility of filler masterbatch, uneven particle size and unstable product quality. Kuphatikiza apo, 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.
Twin-screw extruders, mbali inayi, 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, more effective pumping effect and self-cleaning effect, which can effectively solve the problems of poor compatibility, easy agglomeration and poor fluidity of filler masterbatch raw materials. Kulumikizana ndi kuzungulira kwa zomangira zamapasa kumatha kupanga mphamvu yamphamvu yometa ubweya ndi mphamvu yokanda, which can fully break the agglomerates of inorganic fillers, make the fillers uniformly dispersed in the polymer carrier, and ensure the dispersibility and stability of the product. Kuphatikiza apo, the twin-screw extruder has good temperature control accuracy, strong adaptability to raw materials, and can adapt to the processing of different types, different filling amounts of filler masterbatch, and has high production efficiency and low energy consumption.
2.2 Mfundo Yogwira Ntchito ya Filler Masterbatch Extrusion Granulation
The extrusion granulation process of filler masterbatch ndizovuta thupi komanso mankhwala, zomwe zimaphatikizapo kuyanjana kwa zinthu zingapo monga kutentha, kupanikizika, kumeta ubweya mphamvu ndi nthawi. Mfundo yeniyeni yogwirira ntchito ndi kayendedwe ka ndondomeko ndi izi:
Choyamba, zopangira pretreatment. Zopangira za filler masterbatch (inorganic fillers, carrier resin, zowonjezera) ziyenera kukonzedweratu kuti zitsimikizire mtundu wa chinthu chomaliza. Masitepe enieni akuphatikizapo: 1) Kuyanika mankhwala: Inorganic fillers (such as CaCO3, talc) nthawi zambiri amakhala hydrophilic ndipo amakhala ndi kuchuluka kwa chinyezi. Ngati chinyezi ndichokwera kwambiri, zidzakhudza kusakaniza zotsatira ndi dispersibility wa zipangizo, ndipo ngakhale kuyambitsa thovu mu extruded masterbatch. Choncho, fillers ayenera kuyanika mu dryer (monga chowumitsira mpweya wotentha, chowumitsira vacuum) to reduce the moisture content to below 0.5%. 2) Crushing and sieving: The carrier resin (such as PE, PP) is crushed into small particles or powder with a particle size of 20-40 mesh, 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, ogwirizana, mafuta opangira mafuta, ndi zina.) are put into a high-speed mixer for premixing. The mixing speed is generally 800-1200 rpm pa, and the mixing time is 5-10 minutes. The purpose of premixing is to make the additives evenly adhere to the surface of fillers and carrier resin, improve the compatibility between fillers and carrier, and lay a foundation for subsequent extrusion mixing. The dispersant is a key additive in premixing, zomwe zimatha kupanga filimu yoteteza pamwamba pa chodzaza, kuchepetsa mphamvu pamwamba pa filler, kuteteza filler kuti agglomerating, ndi kukonza dispersibility wa filler mu chonyamulira utomoni.
Chachiwiri, kudyetsa ndi kutumiza. Kusakaniza kosakanikirana kumatumizidwa ku chodyera chodyera cha twin-screw extruder kudzera pa screw feeder kapena lamba feeder.. Liwiro la chakudya liyenera kukhala lofanana komanso lokhazikika, zomwe zikufanana ndi wononga liwiro ndi extrusion liwiro la extruder, kuonetsetsa kuti zipangizo kulowa extrusion patsekeke stably ndi kupewa kudzikundikira zinthu kapena kudya osakwanira. Kudyetsa chipangizo cha extruder zambiri okonzeka ndi pafupipafupi kutembenuka liwiro lamulo ntchito, zomwe zimatha kusintha liwiro la kudyetsa malinga ndi momwe zinthu ziliri.
Chachitatu, kusungunuka, kusakaniza ndi kumeta ubweya. 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, and the volume of the extrusion cavity gradually decreases along the axis direction. When the screws rotate, the materials are gradually compressed under the action of the screws and the barrel, and the pressure in the extrusion cavity gradually increases (generally 3-15MPa). Nthawi yomweyo, the materials are subjected to strong shear force and friction force generated by the relative movement between the screws and the barrel, as well as between the screw flights.
The shear force and friction force can fully break the agglomerates of inorganic fillers, make the fillers uniformly dispersed in the melted carrier resin, ndikulimbikitsa kuphatikizika ndi kuyanjana pakati pa zodzaza ndi chonyamulira. Mphamvu ya kukangana imathanso kutulutsa kutentha kwina, zomwe zimaphatikizidwa ndi kutentha kwakunja kwa mbiya (kutentha kwamagetsi kapena kutentha kwa nthunzi) kupanga chonyamulira utomoni pang`onopang`ono kusungunuka ndi plasticize. Mgolo wa extruder nthawi zambiri umagawidwa 3-6 magawo owongolera kutentha (kudyetsa gawo, gawo losungunuka, kusakaniza gawo, homogenizing gawo, ndi zina.), ndipo kutentha kwa gawo lililonse kumayendetsedwa ndendende molingana ndi mtundu wa chonyamulira utomoni ndi filler. Mwachitsanzo, pokonza PE chonyamulira filler masterbatch, kutentha kwa gawo lodyera ndi 80-100 ℃, gawo losungunuka ndi 120-140 ℃, gawo losakaniza ndi 140-150 ℃, ndipo gawo la homogenizing ndi 130-140 ℃; pokonza PP chonyamulira filler masterbatch, the temperature of each section is 20-30℃ higher than that of PE carrier.
Fourth, 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.
Fifth, 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℃, ndipo nthawi yozizira ndi 2-5 minutes. Rapid cooling can make the strips solidify quickly, maintain the shape and size of the strips, and avoid deformation. Pambuyo kuzirala, 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) ndi kuonetsetsa kufanana kwa mankhwala. Masterbatch oyenerera amatumizidwa kumakina onyamula okha kuti apangidwe. Zolembazo zimatha kusinthidwa malinga ndi zosowa za makasitomala (monga 25kg / thumba, 50kg/chikwama), ndipo zoyikapo ziyenera kukhala zosindikizidwa komanso zotsimikizira chinyezi kuti ziteteze masterbatch kuti isatenge chinyezi komanso kukhudza mtundu wake.. Pambuyo pakulongedza, mankhwala amasungidwa mu youma, kozizira ndi mpweya wokwanira.
2.3 Zofunika Kwambiri Zomwe Zimakhudza Filler Masterbatch Extrusion Granulation Effect
Zotsatira za extrusion granulation zimakhudza mwachindunji mtundu wa filler masterbatch. Pali zinthu zambiri zomwe zimakhudza mphamvu ya granulation, makamaka kuphatikiza zopangira zinthu, chiŵerengero cha formula, premixing zotsatira, extrusion magawo ndi kufa mutu kapangidwe. 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. Mwachitsanzo, the particle size of inorganic fillers directly affects the dispersibility and fineness of the masterbatch. The finer the particle size of the filler (generally 800-2000 mesh), 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, dust) 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. Mtundu ndi mlingo wa zowonjezera ziyeneranso kufananizidwa bwino. Mwachitsanzo, 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 Premixing Mmene:
Premixing is the foundation of extrusion granulation. The uniformity of premixing directly affects the dispersibility of the filler in the carrier resin. If the premixing is uneven, 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 pa, the mixing time is 5-10 minutes, and the mixing temperature is controlled at 40-60℃ (appropriate temperature can improve the adhesion of additives and promote uniform mixing).
2.3.4 Extrusion Parameters:
Extrusion parameters are the most important factors affecting the granulation effect, mainly including screw speed, extrusion temperature and extrusion pressure.
- Screw Speed: The screw speed generally ranges from 150 ku 600 rpm pa. Kukwera kwa wononga liwiro, mphamvu yometa ubweya wambiri ndi mphamvu yakulimbana yomwe imalandiridwa ndi zipangizo, the better the mixing and dispersing effect of the filler, ndi kukwezera kupanga bwino. Komabe, ngati wononga liwiro kwambiri, nthawi yokhalamo zipangizo mu extrusion patsekeke ndi lalifupi kwambiri, resulting in incomplete melting of the carrier resin, insufficient mixing of the materials, and uneven particle size of the masterbatch; ngati screw speed ndi yotsika kwambiri, mphamvu yometa ubweya ndi kukangana sikukwanira, the filler cannot be fully dispersed, ndipo kupanga bwino kumakhala kochepa. 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.
- Kutentha kwa Extrusion: The extrusion temperature is divided into multiple sections (kudyetsa gawo, gawo losungunuka, kusakaniza gawo, homogenizing gawo, die head section), and the temperature of each section needs to be precisely controlled according to the type of carrier resin and filler. Kutentha kwa gawo lodyetserako ndikotsika (slightly higher than the melting point of the carrier resin), zomwe makamaka kuteteza zipangizo kuti caking ndi kuonetsetsa kudya bwino; kutentha kwa gawo losungunuka ndilopakati, which is mainly to promote the melting and plasticization of the carrier resin; kutentha kwa gawo losakaniza ndilokwera kwambiri, zomwe makamaka kumapangitsanso kukameta ubweya ndi kusakaniza zotsatira, and promote the uniform dispersion of the filler; kutentha kwa gawo la homogenizing kumakhala kotsika pang'ono kuposa gawo losakanikirana, zomwe makamaka kuonetsetsa kutentha yunifolomu ndi mamasukidwe akayendedwe a zipangizo, ndi kupewa kuwonongeka kwa kutentha; kutentha kwa mutu kufa gawo ndi pang'ono m'munsi kuposa gawo homogenizing, which is to ensure the shaping effect of the strips.
- Extrusion Pressure: The extrusion pressure is generally 3-15MPa. Kupanikizika mu extrusion patsekeke makamaka anatsimikiza ndi psinjika chiŵerengero cha wononga, kukula kwa bowo ndi liwiro la screw. Kukwera kwamphamvu kwa extrusion, the better the mixing and dispersing effect of the materials, and the denser the masterbatch particles. Komabe, ngati kupanikizika kuli kwakukulu, zidzawonjezera kugwiritsa ntchito mphamvu ndi kuvala kwa zida, ndipo ngakhale kuchititsa mutu wa imfa kutsekereza; ngati kuthamanga kuli kochepa kwambiri, zipangizo sangathe wothinikizidwa kwathunthu ndi kusakaniza, the masterbatch particles are loose, ndipo machitidwe ake ndi osakhazikika.
2.3.5 Kufa Mutu Kapangidwe:
The die head structure mainly includes the number, shape and size of die holes. The shape of the die hole determines the cross-sectional shape of the extruded strips (such as circular, square), and the size of the die hole determines the initial diameter of the strips and the final particle size of the masterbatch. The smaller the die hole size, the greater the extrusion pressure, the better the mixing and dispersing effect, but the production capacity will be reduced; the larger the die hole size, the lower the extrusion pressure, kumachepetsa kupanga bwino, koma kukula kwa tinthu ta masterbatch ndi kokulirapo. Kuchuluka kwa mabowo amafa kumakhudza kupanga mphamvu; kwambiri chiwerengero cha kufa mabowo, kukweza mphamvu zopangira, koma m'pofunika kuonetsetsa kuti kugawa kwapanikiza kumakhala kofanana, kuti mupewe mkangano makulidwe a n'kupanga ndi kusiyana tinthu kukula kwa masterbatch.
3. Ma Extruders Athu: Ubwino ndi Mndandanda Wazinthu za Filler Masterbatch Production
Takhala tikuchita nawo kafukufukuyu, chitukuko ndi kupanga mkulu-ntchito extruders ndi mizere granulation kupanga, ndipo tapeza luso lolemera pantchito ya filler masterbatch processing. Malinga ndi mawonekedwe a filler masterbatch zopangira (kuuma kwakukulu, kusamvana bwino, kukhuthala kwakukulu) ndi zofunika processing (dispersibility wabwino, yunifolomu tinthu kukula, kuchuluka kodzaza), tapanga ma twin-screw extruder omwe ali oyenera kupanga filler masterbatch. Extruders athu ali ndi ubwino wa kukana kuvala mkulu, mphamvu yometa kwambiri, kuwongolera bwino kutentha, ntchito yokhazikika komanso mtengo wotsika mtengo, zomwe zimatha kukwaniritsa zosowa zamitundu yosiyanasiyana, different filling amounts of filler masterbatch (CaCO3, talc, BaSO4, ndi zina.), ndikuthandizira mabizinesi kukonza bwino ntchito, onetsetsani kuti katunduyo ali wabwino komanso kuchepetsa ndalama zopangira.
3.1 Ubwino Waikulu Wa Ma Extruder Athu a Filler Masterbatch Production
3.1.1 High Wear Resistance, Moyo Wautumiki Wautali:
Cholinga pa vuto kuti inorganic fillers (such as CaCO3, talc) kukhala ndi kuuma kwakukulu komanso kosavuta kuvala wononga ndi mbiya, timagwiritsa ntchito zida zapamwamba zosagwira ntchito komanso ukadaulo wapamwamba wopanga kuti tiwonetsetse kuti zida zapakati pa extruder sizimamva bwino.. Zomangira ndi mbiya zimapangidwa ndi chitsulo chosamva kuvala cha alloy (monga 38CrMoAlA), ndi pambuyo mankhwala nitriding kapena bimetallic gulu mankhwala, kuuma pamwamba kumatha kufika ≥65 HRC, yomwe ili ndi mphamvu yolimbana ndi kuvala kwambiri komanso kukana dzimbiri, ndipo amatha kukana bwino kuvala komwe kumachitika chifukwa cha kukangana pakati pa kuuma kwapamwamba kwambiri ndi zigawo zake. Izi zimakulitsa kwambiri moyo wautumiki wa screw ndi mbiya, amachepetsa pafupipafupi chigawo m'malo, ndi kuchepetsa mtengo wokonza zipangizo. Kuphatikiza apo, timaperekanso ntchito zaukadaulo zozindikira zobvala za screw ndi mbiya. Gulu lathu laukadaulo liziwona pafupipafupi kuchuluka kwa screw ndi mbiya kwa makasitomala, perekani lipoti latsatanetsatane la kavalidwe, ndikuyika patsogolo malingaliro omwe akuwongolera m'malo ndi kukonza, kuwonetsetsa kuti makasitomala amangosintha zinthu ngati kuli kofunikira, kupewa kuwononga zinthu zosafunikira.
3.1.2 Kumeta Kwamphamvu ndi Kutha Kusakaniza, Dispersibility Wabwino Kwambiri:
Chinsinsi cha kupanga filler masterbatch ndikuwonetsetsa kubalalitsidwa kofanana kwa zodzaza. Zotulutsa zathu zamapasa zimatengera mawonekedwe a intermeshing co-rotating twin-screw, ndi phula lomveka bwino, kutsogolera ndi compression ratio kupanga. Kulumikizana ndi kuzungulira kwa zomangira zamapasa kumatha kupanga mphamvu yamphamvu yometa ubweya ndi mphamvu yokanda, which can fully break the agglomerates of inorganic fillers, make the fillers uniformly dispersed in the melted carrier resin, ndi kuonetsetsa dispersibility wa masterbatch. Chophimbacho chimapangidwa ndi mawonekedwe a modular, ndi zinthu zosiyanasiyana screw (monga kutumiza zinthu, kusakaniza zinthu, kumeta zinthu) itha kuphatikizidwa momasuka molingana ndi mtundu ndi kuchuluka kwa filler masterbatch, kuti musinthe mphamvu yakumeta ubweya ndi kusakaniza, ndi kukwaniritsa zotsatira zabwino processing. Mwachitsanzo, pokonza CaCO3 masterbatch yodzaza kwambiri, 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 Precise Temperature Control, Magwiridwe Okhazikika:
Our extruders adopt advanced intelligent temperature control systems, zomwe zimatha kuzindikira kuwongolera bwino kwa kutentha kwa gawo lililonse la mbiya ndi mutu wakufa. 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. Dongosolo lowongolera kutentha lili ndi nthawi yeniyeni yowunika ndi ntchito ya alamu. If the temperature of any section exceeds the set range, dongosolo lidzapereka alamu mwamsanga mu nthawi, komanso ngakhale kusintha mphamvu Kutentha kapena kutseka zida ngati kuli kofunikira, kupewa kulephera kwa zida ndi zovuta zamtundu wazinthu. Kuphatikiza apo, 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, talc filler masterbatch, BaSO4 filler masterbatch, and other special filler masterbatches. The filling amount can be adjusted from 30% ku 80%, which can meet the different cost and performance requirements of customers. The modular design of the extruder (screw, mbiya, mutu kufa, ndi zina.) 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. Kuphatikiza apo, 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 Kuchita Bwino Kwambiri, Low Energy Consumption:
Our twin-screw extruders have high production efficiency, which is much higher than that of single-screw extruders. The production capacity of our extruders ranges from 100kg/h to 3000kg/h, which can meet the production needs of different scales of enterprises (yaying'ono, medium and large). The high-torque drive system and optimized screw design of the extruder can effectively improve the conveying capacity and plasticization efficiency of materials, kuchepetsa nthawi yokhalamo zinthu mu extrusion patsekeke ndi kukonza bwino kupanga. Nthawi yomweyo, ndi extruder utenga mphamvu yopulumutsa mamangidwe, monga mota yamphamvu kwambiri, chipangizo chobwezeretsa kutentha, ndi zina., zomwe zingachepetse kugwiritsa ntchito mphamvu kwa unit 15%-25% poyerekeza ndi extruders wamba, kuthandiza mabizinesi kuchepetsa ndalama zopangira.
3.1.6 Ntchito Yosavuta ndi Kusamalira:
extruders athu kutengera PLC wanzeru kulamulira dongosolo ndi kukhudza chophimba ntchito mawonekedwe, zomwe ndi zosavuta komanso zomveka, zosavuta kugwira ntchito. Dongosololi limatha kusunga ma seti angapo amitundu yazogulitsa ndi magawo opangira. Makasitomala akamapanga mitundu yosiyanasiyana ya filler masterbatch, amangofunika kutchula chilinganizo chofananira ndi magawo, popanda kubwerezabwereza, zomwe zimapulumutsa nthawi komanso zimapangitsa kuti ntchito zitheke. Mapangidwe a modular a zida amapangitsa kukonza kukhala kosavuta. Zowononga, mbiya, mutu kufa ndi zigawo zina akhoza disassembled ndi anasonkhana mwamsanga, zomwe zimachepetsa nthawi yokonza ndi mphamvu ya ntchito. Gulu lathu lautumiki pambuyo pa malonda lidzapereka unsembe wa akatswiri, kutumiza ndi kuphunzitsa ntchito kwa makasitomala, kuwonetsetsa kuti makasitomala atha kugwiritsa ntchito zida bwino.
3.2 Mndandanda Wathu Wazinthu za Extruder ndi Kusintha Kwawo ku Filler Masterbatch
Kuti mukwaniritse zosowa zosiyanasiyana zopanga mabizinesi a filler masterbatch a masikelo osiyanasiyana ndi mitundu yazogulitsa, ife anapezerapo unyinji wonse wa mapasa-screw extruder mankhwala, kuphatikiza mndandanda wa HTS BASIC, HTS PLUS mndandanda, HTS SUPER mndandanda, ZTE mndandanda ndi HTE mndandanda. Mndandanda uliwonse uli ndi mawonekedwe ake komanso mawonekedwe omwe akuwongolera, zomwe zitha kusankhidwa ndi makasitomala malinga ndi momwe amapangira, mtundu wazinthu, bajeti ndi zinthu zina.
3.2.1 HTS BASIC Series Extruders: Kusankha Kotchipa Kwa Mabizinesi Ang'onoang'ono ndi Ang'onoang'ono.
The HTS BASIC mndandanda extruder ndi zotsika mtengo zopanga zopanga paokha ndi ife, omwe amapangidwira mabizinesi opanga ma filler masterbatch okhala ndi masikelo ang'onoang'ono kapena ang'onoang'ono opanga kapena kulowa koyamba mumakampani.. Ma extruder awa amagwiritsa ntchito ma gearbox apakati-torque ochokera kwa opanga otsogola ku Europe, zomwe zili ndi ubwino wokhazikika, phokoso lochepa, Kuchita bwino kwambiri komanso moyo wautali wautumiki. Mapangidwe a torque yapakatikati amatha kukwaniritsa zosowa zamafuta ambiri a masterbatch (monga kudzaza kwapakatikati mpaka kwapakatikati CaCO3 masterbatch, PE/PP chonyamulira masterbatch), ndi nthawi yomweyo, ili ndi mtengo wokwanira, zomwe zingathandize mabizinesi kuchepetsa mtengo woyambira.
Kumbali ya kapangidwe kamangidwe, the HTS BASIC series extruders adopt a twin-screw parallel structure, with a screw diameter ranging from 30mm to 65mm, and a compression ratio of 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. The extruder is equipped with a PLC control system and a touch screen operation interface, which can realize automatic feeding, automatic temperature control, automatic pressure control and automatic cutting, 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, kufa mitu, feeding devices, drying devices and post-processing equipment according to their own product types, production capacity and budget, so as to form a production line suitable for their own needs.
3.2.2 HTS PLUS Series Extruders: High-Performance Choice for Engineering Plastic and Filler Masterbatch.
The HTS PLUS mndandanda extruder amatengera ma gearbox apamwamba kwambiri odzipanga okha komanso opangidwa ndi ife, 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 mndandanda extruders ali ndi wononga awiri kuyambira 65mm mpaka 110mm, compression chiŵerengero cha 5 ~ 10, and a screw speed range of 200~600 rpm. Zowononga ndi mbiya zimagwiritsa ntchito mankhwala a bimetallic composite, which has higher wear resistance and corrosion resistance, and can adapt to the processing of high-hardness fillers (such as heavy calcium carbonate, talc) 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, yomwe ili yoyenera mabizinesi apakati komanso akulu akulu a filler masterbatch omwe amatsata magwiridwe antchito apamwamba komanso kudzaza kwakukulu.
Kuphatikiza apo, otulutsa a HTS PLUS ali ndi kusakanikirana kolimba komanso kumeta ubweya, zomwe zimatha kufalitsa kwathunthu zodzaza kwambiri muzonyamula zonyamula, kuonetsetsa dispersibility ndi bata la masterbatch. Ndizoyenera kwambiri kupanga filler masterbatch yomwe imagwiritsidwa ntchito pamagalimoto, zipolopolo zanyumba, mafilimu apamwamba apulasitiki ndi zinthu zina zapulasitiki zapamwamba kwambiri.
3.2.3 HTS SUPER Series Extruders: Kusankha Kwapamwamba Kwambiri kwa High-End Filler Masterbatch.
The HTS SUPER series extruders amatengera chipangizo chaposachedwa kwambiri cha torque chopangidwa ndi ife.. Poganizira ma torque apamwamba komanso kuthamanga kwambiri kwa mndandanda uno, kapangidwe kamangidwe ka chigawo chilichonse kiyi wa extruder wakhala wokometsedwa kwathunthu, yomwe ndi mndandanda wathu wapamwamba kwambiri wa extruder, kuyimira mlingo wapamwamba wa chitukuko cha extruder China. Izi mndandanda wa extruders zimagwiritsa ntchito pokonza mkulu-mapeto, special and high-performance filler masterbatch, monga kudzaza BaSO4 masterbatch (za mapulasitiki azachipatala, mafilimu apamwamba), 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, barium sulphate) and high-filling materials (filling amount ≥70%). The extruder is equipped with an intelligent PLC + cloud touch screen control system, zomwe zimatha kuzindikira kusintha kwakutali, kuwunika kwa data yopanga ndi kukonza zolosera za zida, kuzindikira kasamalidwe kopanga mwanzeru.
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. Izi mndandanda wa extruders ali ndi ubwino mkulu mwatsatanetsatane, makonda amphamvu, ntchito zambiri komanso magwiridwe antchito okhazikika, zomwe zimatha kukwaniritsa zofunika kwambiri pakukonza kwapamwamba-mapeto a masterbatch filler.
3.2.4 ZTE Series Extruders: Kusankha Kopanda Mtengo kwa General Filler Masterbatch.
The ZTE mndandanda extruders ali ndi ntchito mtengo kwambiri, ndi magawo awo opangidwa ndi oyenera zida zambiri za filler masterbatch (monga kudzaza kwapakatikati mpaka kwapakatikati CaCO3 masterbatch, PE/PP chonyamulira masterbatch). Izi mndandanda wa extruders utenga chosavuta ndi wokometsedwa dongosolo, zomwe zimachepetsa mtengo wopanga ndikuwonetsetsa magwiridwe antchito, ndipo ndi oyenera mabizinesi ang'onoang'ono ndi apakatikati omwe ali ndi bajeti yochepa komanso zofunikira zazinthu zonse.
The ZTE mndandanda extruders ndi wononga m'mimba mwake kuyambira 30mm kuti 50mm, compression chiŵerengero cha 4 ~ 7, ndi wononga liwiro la 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, enterprises need to comprehensively consider their own production needs, product types, filling amount, budget and other factors to ensure that the selected equipment can meet the actual production needs and bring maximum economic benefits. The following are some specific selection suggestions:
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. Mwachitsanzo, 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, flame-retardant masterbatch), 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 matani), 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 matani), it is recommended to choose the HTS PLUS series, HTS SUPER mndandanda kapena HTE mndandanda extruders ndi mphamvu kupanga oposa 1000kg/h.
3.3.3 Ganizirani za Wear Resistance of the Equipment:
Kukaniza kuvala kwa screw ndi mbiya ndichinthu chofunikira kwambiri chomwe chimakhudza moyo wautumiki komanso mtengo wogwirira ntchito wa extruder. Kwa mabizinesi omwe amakonza zodzaza zolimba kwambiri (such as heavy calcium carbonate, talc) kapena masterbatch yodzaza kwambiri, m'pofunika kusankha extruders ndi mkulu kuvala kukana (monga wononga ndi mbiya ndi bimetallic composite mankhwala kapena laser cladding mankhwala), monga mndandanda wa HTS PLUS ndi HTS SUPER mndandanda, kuchepetsa kuchuluka kwa chigawocho m'malo ndi mtengo wokonza.
3.3.4 Ganizirani za Mtengo Wogwira Ntchito wa Zida:
Mabizinesi sayenera kungoyang'ana mtengo woyambira wa zida, komanso lingalirani za mtengo wogwirira ntchito wanthawi yayitali (monga kugwiritsa ntchito mphamvu, mtengo wokonza, mtengo wa zida zosinthira). Mwachitsanzo, ngakhale ndalama zoyamba za HTS SUPER mndandanda wa extruders ndizokwera, kukana kwawo kuvala, bata ndi kupanga bwino ndi bwino, ndipo mtengo wogwira ntchito kwa nthawi yayitali ndi wotsika; ma extruders a ZTE ali ndi ndalama zochepa zoyambira, koma mphamvu zawo zopangira ndi kukana kuvala ndizochepa, yomwe ili yoyenera mabizinesi omwe ali ndi bajeti yochepa komanso kupanga pang'ono.
3.3.5 Samalani ndi Ntchito Yogulitsa Pambuyo pa Kugulitsa Zida:
Ntchito zogulitsa pambuyo pogulitsa zida ndizofunikira kwambiri pakugwira ntchito kwanthawi zonse kwa mzere wopanga. Mabizinesi akuyenera kusankha opanga omwe ali ndi machitidwe abwino pambuyo pogulitsa, amene angapereke unsembe akatswiri, kutumiza, maphunziro, ntchito zosamalira ndi zosinthira zida. Tili ndi akatswiri pambuyo-malonda gulu utumiki, which can respond to customer needs in a timely manner (provide solutions within 24 maola) 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. Choncho, 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, as a key functional additive in plastic processing, has a wide range of application fields, covering various fields such as plastic packaging, kumanga, zamagalimoto, zamagetsi, 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, accounting for more than 50% of the total application amount. Filler masterbatch is widely used in the production of plastic films, plastic bags, woven bags, packaging belts, packaging containers and other packaging products.
- Mafilimu Apulasitiki: Kuphatikizapo pulasitiki woonda mafilimu, mafilimu wandiweyani, mafilimu osangalatsa, mafilimu a greenhouses, ndi zina. Filler masterbatch yomwe imagwiritsidwa ntchito m'mafilimu apulasitiki makamaka imakhala yopepuka ya calcium carbonate filler masterbatch kapena barium sulfate filler masterbatch., zomwe zimafuna dispersability wabwino, high fineness and no impurities, to ensure that the blown film has no white spots, black spots or pinholes, ndipo amasunga kuwonekera bwino, kulimba ndi kulimba mphamvu. Kuonjezera kuchuluka koyenera kwa filler masterbatch sikungangochepetsa mtengo wopangira filimuyo, but also improve the rigidity, kutentha kukana ndi dimensional bata filimu, ndi kuchepetsa kuchepa kwa filimuyo. Mwachitsanzo, popanga matumba ogula apulasitiki, kuwonjezera 1%-3% ya CaCO3 filler masterbatch imatha kuchepetsa mtengo ndi 5%-10% popanda kukhudza kulimba ndi kunyamula katundu wa matumba.
- Matumba apulasitiki: Kuphatikizapo zikwama zogulira, matumba a vest, matumba a zinyalala, matumba onyamula zakudya, ndi zina. 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, simenti, 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% ya filler masterbatch imatha kukonza kukhazikika, kulimba kolimba komanso kuvala kukana kwa matumba oluka ndi malamba oyikamo, kuchepetsa mtengo, ndikukulitsa moyo wautumiki wazinthu.
- Zotengera Packaging: Kuphatikizapo mabotolo apulasitiki, migolo ya pulasitiki, mabokosi apulasitiki, ndi zina. Filler masterbatch yomwe imagwiritsidwa ntchito pakuyika zotengera ndi barium sulfate filler masterbatch kapena light calcium carbonate filler masterbatch., zomwe zimafuna kuwonekera bwino komanso kukhazikika kwamankhwala. Kuonjezera kuchuluka koyenera kwa filler masterbatch kumatha kuchepetsa mtengo ndikuwongolera kulimba komanso mphamvu ya zotengerazo..
4.1.2 Makampani Omanga Apulasitiki:
Filler masterbatch imagwiritsidwa ntchito kwambiri popanga mapaipi apulasitiki, mbiri za pulasitiki, mapepala apulasitiki, matailosi apulasitiki ndi zinthu zina zomanga.
- Mapaipi apulasitiki: Kuphatikiza mapaipi a PVC, PE mapaipi, PP mapaipi, ndi zina., zomwe zimagwiritsidwa ntchito popereka madzi, ngalande, kufalitsa gasi, chitetezo chingwe ndi madera ena. Filler masterbatch yomwe imagwiritsidwa ntchito pamapaipi apulasitiki makamaka ndi calcium carbonate filler masterbatch kapena talc filler masterbatch., zomwe zimafuna kukhazikika kwakukulu, kukana kutentha ndi kukana kuthamanga. Adding 5%-15% ya filler masterbatch imatha kukonza kukhazikika, kutentha kupotoza kutentha ndi kukakamiza kukana kwa mapaipi, kuchepetsa mtengo, ndi kuteteza mapaipi kuti asafooke pansi pa kutentha kwakukulu ndi kupanikizika.
- Mbiri Zapulasitiki: Kuphatikiza mbiri ya PVC ya zitseko ndi mazenera, mbiri zokongoletsa pulasitiki, ndi zina. Filler masterbatch yomwe imagwiritsidwa ntchito pama profiles apulasitiki makamaka ndi calcium carbonate filler masterbatch, zomwe zimafuna kukana kwanyengo kwabwino komanso mphamvu yamphamvu. Adding 5%-10% ya filler masterbatch imatha kukonza kukhazikika, kukana kwanyengo ndi mphamvu yamphamvu ya mbiriyo, kuchepetsa mtengo, ndikuwonetsetsa moyo wautumiki wambiri m'malo akunja.
- Mapepala apulasitiki: Kuphatikizapo mapepala a PVC, Mapepala a PE, PP sheets, ndi zina., which are used for indoor decoration, kuyika, 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 (pamwamba 1250 mesh) 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, zomwe zimatha kupangitsa kuti zidole ziziwoneka bwino komanso zowoneka bwino, kuwapanga iwo okongola kwambiri.
- Zigawo za Pulasitiki ndi Zipolopolo: Kuphatikizirapo zida zapulasitiki zopangira zida zapanyumba, zida zamkati zamagalimoto, zipolopolo zamagetsi zamagetsi, ndi zina. Filler masterbatch yomwe imagwiritsidwa ntchito pazinthu izi makamaka ndi talc filler masterbatch kapena galasi fiber reinforced filler masterbatch, zomwe zimafuna kukhazikika kwakukulu, kukana kutentha ndi mphamvu yamphamvu. Mwachitsanzo, popanga zida zamkati zamagalimoto (monga mapanelo zida, mapanelo a zitseko), kuwonjezera 5%-8% ya talc filler masterbatch imatha kupititsa patsogolo kukhazikika komanso kutentha kwa magawo, kuchepetsa kuthamanga kwa magazi, ndi kupanga mbali zovuta zopunduka pansi pa kutentha chilengedwe m'galimoto; popanga zipolopolo zamagetsi zamagetsi (monga zipolopolo za foni yam'manja, zipolopolo za router), kuwonjezera 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, mapanelo a zitseko, seat cushions, armrests, ndi zina. These parts have high requirements on rigidity, kukana kutentha, low odor and environmental protection. Talc filler masterbatch ndi calcium carbonate filler masterbatch ndizomwe zimagwiritsidwa ntchito kwambiri. Talc filler masterbatch imatha kusintha kwambiri kulimba komanso kukana kutentha kwa polypropylene (PP) zipangizo, kupangitsa kuti mbali zamkati zikhale zokhazikika bwino; calcium carbonate filler masterbatch ili ndi zabwino zake zotsika mtengo komanso kukonza bwino madzimadzi, zomwe zingachepetse mtengo wopangira magawo amkati. Mwachitsanzo, kuwonjezera 6%-10% wa talc filler masterbatch ku mapanelo a zida za PP amatha kusintha kutentha kwa kutentha ndi 15-25 ℃, ndi kuchepetsa mtengo kupanga ndi 8%-12%.
- Zida Zakunja Zagalimoto: Kuphatikizapo mabampa, zotetezera, zogwirira zitseko, ndi zina. Zigawozi zimawonekera ku chilengedwe chakunja kwa nthawi yayitali, kotero iwo ali ndi zofunika kwambiri pa kukana nyengo, mphamvu mphamvu ndi UV kukana. Filler masterbatch yomwe imagwiritsidwa ntchito pazigawo zakunja ndi talc filler masterbatch kapena barium sulfate filler masterbatch., zomwe nthawi zambiri zimaphatikizidwa ndi zowonjezera zolimbana ndi nyengo. Adding 4%-7% ya talc filler masterbatch imatha kupititsa patsogolo mphamvu komanso kulimba kwa mbali zakunja, onjezerani kukana kwawo ku zotsatira zakunja; barium sulfate filler masterbatch imatha kupititsa patsogolo kukana kwa nyengo komanso kusungidwa kwamitundu yakunja, kuwapanga kukhala kosavuta kuzimiririka ndi kukalamba pansi pakuchita kwa dzuwa ndi mvula.
- Magalimoto Ogwira Ntchito: Kuphatikizapo mapaipi olowetsa mpweya, magawo ozizira dongosolo, matumba a batri, ndi zina. Zigawozi zimakhala ndi zofunika kwambiri pa kukana kutentha, kukana mankhwala ndi katundu makina. The filler masterbatch used for functional parts is mainly glass fiber reinforced filler masterbatch or special mineral filler masterbatch. Mwachitsanzo, kuwonjezera 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, kutsekereza, dimensional accuracy and heat resistance of plastic materials. Filler masterbatch is widely used in the production of plastic parts of electronic and electrical products, monga mawaya ndi zingwe, zokopa za transformer, nyumba zolumikizira, ndi zina.
- Waya ndi Chingwe Sheaths: Zingwe za pulasitiki za mawaya ndi zingwe ziyenera kukhala zotchingira bwino, kuvala kukana, kuchedwa kwamoto ndi kukana nyengo. Filler masterbatch yomwe imagwiritsidwa ntchito popanga mawaya ndi zingwe zingwe makamaka ndi calcium carbonate filler masterbatch kapena flame-retardant filler masterbatch.. Adding 3%-6% ya calcium carbonate filler masterbatch imatha kupititsa patsogolo kukana komanso kulimba kwa sheath, kuchepetsa mtengo; flame-retardant filler masterbatch (monga magnesium hydroxide, aluminium hydroxide filler masterbatch) akhoza kuwonjezera kuchedwa kwa moto kwa sheath, kuletsa kufalikira kwa moto ngati pali njira yayifupi, kuonetsetsa chitetezo cha dera.
- Transformer Casings ndi Nyumba zolumikizira: Zigawozi ziyenera kukhala ndi zotchingira bwino, kukana kutentha ndi kulondola kwa dimensional. 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, mipope yothirira, 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, kulimba, 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, kuchepetsa mtengo; kuwonjezera 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, matumba a zinyalala), the mixing ratio can be 5%-20% (using low-to-medium filling calcium carbonate filler masterbatch);
- For plastic products with medium performance requirements (such as plastic films, 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 (monga zida zamagalimoto, zipolopolo zamagetsi zamagetsi, mafilimu apamwamba), 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), chiŵerengero chosakanikirana chiyenera kuyendetsedwa pa 1%-3%, ndi barium sulfate kapena kuwala kwa calcium carbonate filler masterbatch yokhala ndi tinthu tating'onoting'ono (pamwamba 1250 mesh) ziyenera kusankhidwa kupewa kukhudza kuwonekera kwa zinthu.
4.2.2 Njira Yosakaniza:
Kusakanikirana kwa filler masterbatch ndi pulasitiki yoyambira kuyenera kutsimikizira kufanana, pofuna kupewa kuphatikizika kwanuko kwa masterbatch ndikusokoneza magwiridwe antchito omaliza. Njira zophatikizira zofala zimaphatikizapo kusakaniza kowuma ndi kusakaniza konyowa, pakati pawo kusakaniza kowuma kumagwiritsidwa ntchito kwambiri popanga mafakitale.
- Dry Kusakaniza: Njirayi ndiyoyenera kudzaza masterbatch ambiri ndi pulasitiki yoyambira (such as PE, PP, Zithunzi za PVC). Masitepe enieni ndi: choyamba, yumitsani tinthu tating'ono tapulasitiki ndi filler masterbatch kuti muchotse chinyezi (chinyezi chiyenera kuyendetsedwa pansipa 0.5%); ndiye, ikani tinthu tating'ono ta pulasitiki ndi filler masterbatch mu chosakanizira chothamanga kwambiri molingana ndi kusakanikirana kotsimikizika, ndi kuwonjezera mafuta oyenera (ngati kuli kofunikira) kusakaniza mofanana. The mixing speed is generally 500-800 rpm pa, and the mixing time is 3-5 minutes. Pambuyo kusakaniza, osakaniza akhoza mwachindunji anatumiza kwa extruder kapena jekeseni akamaumba makina processing. Ubwino wa kusakaniza kowuma ndi ntchito yosavuta, mkulu dzuwa, mtengo wotsika ndipo palibe kuipitsa kwa mankhwala.
- Kusakaniza Konyowa: Njirayi ndi yoyenera filler masterbatch yokhala ndi dispersibility yochepa kapena pulasitiki yoyambira yokhala ndi kukhuthala kwakukulu (monga PVC phala). Masitepe enieni ndi: sakanizani filler masterbatch ndi kuchuluka koyenera kwa zosungunulira (monga plasticizer, zosungunulira mafuta) kupanga phala, kenaka yikani phala ku pulasitiki yoyambira ndikuyambitsa mofanana, ndipo potsiriza chotsani zosungunulira mwa kutentha kapena kuyanika. Ubwino wa chonyowa kusanganikirana zabwino kusakaniza zotsatira ndi yunifolomu kubalalitsidwa kwa masterbatch; kuipa ndi ntchito zovuta, mtengo wapamwamba, ndi zosungunulira zosavuta zotsalira zomwe zimakhudza mtundu wa mankhwala. Choncho, kusakaniza konyowa kumangogwiritsidwa ntchito pazochitika zapadera.
4.2.3 Kusintha kwa Processing Parameters:
Mukawonjezera filler masterbatch pakukonza pulasitiki, magawo processing (monga kutentha, kupanikizika, screw liwiro) ziyenera kusinthidwa moyenera molingana ndi mtundu ndi kuchuluka kwa kudzaza kwa masterbatch kuti zitsimikizire kupita patsogolo kosalala komanso mtundu wa chinthu chomaliza..
- Kusintha kwa Kutentha: Kuphatikiza kwa filler masterbatch kumawonjezera kukhuthala kwa osakaniza, kotero kutentha kwa processing kumayenera kuchulukitsidwa moyenerera ndi 5-15 ℃ poyerekeza ndi kutentha kwa pulasitiki koyera.. Mwachitsanzo, pokonza pulasitiki ya PE yokhala ndi calcium carbonate filler masterbatch, kutentha processing akhoza ziwonjezeke ndi 5-10 ℃; pokonza pulasitiki ya PP yokhala ndi talc filler masterbatch, kutentha processing akhoza ziwonjezeke ndi 10-15 ℃. Tiyenera kukumbukira kuti kutentha sikuyenera kukhala kokwera kwambiri kuti tipewe kuwonongeka kwa pulasitiki yoyambira ndi zowonjezera..
- Kusintha kwa Pressure: Kuphatikiza kwa filler masterbatch kumawonjezera kukana panthawi yokonza, kotero kuthamanga processing (kuthamanga kwa extrusion, jekeseni kuthamanga) iyenera kuwonjezeredwa moyenera 10%-20%. Mwachitsanzo, potulutsa mapaipi apulasitiki ndi filler masterbatch, kuthamanga kwa extrusion kungawonjezeke ndi 10%-15% kuonetsetsa compactness ndi dimensional kulondola kwa mapaipi; pobaya mapulasitiki ndi 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 (makamaka calcium carbonate, talc masterbatch) n'zosavuta kuyamwa chinyezi, zomwe zingayambitse mavuvu, pinholes ndi zolakwika zina mu mankhwala omaliza. Choncho, masterbatch ayenera kusungidwa mu youma, kozizira ndi mpweya wokwanira, ndipo ziyenera kuyanika musanagwiritse ntchito (kuyanika kutentha ndi 80-100 ℃, ndipo nthawi yowuma ili 2-4 maola).
- Kugwirizana: Utoto wonyamula wa masterbatch filler uyenera kukhala wogwirizana kapena wogwirizana ndi pulasitiki yoyambira ya chinthucho.. Mwachitsanzo, PE filler masterbatch iyenera kugwiritsidwa ntchito ndi pulasitiki ya PE base, ndi PP filler masterbatch iyenera kugwiritsidwa ntchito ndi PP base pulasitiki. Ngati chonyamulira utomoni n'zosagwirizana ndi m'munsi pulasitiki, zidzakhudza kuyanjana pakati pa masterbatch ndi pulasitiki yoyambira, kumabweretsa kusabalalika bwino komanso kuchepa kwa magwiridwe antchito azinthu.
- Kusakaniza kwa Uniform: Filler masterbatch ndi pulasitiki yoyambira ziyenera kusakanikirana mofanana. If the mixing is uneven, local agglomeration of the masterbatch will occur, kumabweretsa zolakwika monga mawanga oyera, 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 (generally 6-12 miyezi). If the storage period is exceeded, the masterbatch may absorb moisture, agglomerate or the performance of additives may degrade, affecting the use effect. Choncho, the masterbatch should be used within the storage period.
5. Mavuto Wamba ndi Mayankho mu Filler Masterbatch Production
Mukupanga kwa filler masterbatch, chifukwa cha mphamvu ya zipangizo, fomula, zida processing ndi magawo processing, mavuto osiyanasiyana akhoza kuchitika, zomwe zimakhudza ubwino ndi kupanga bwino kwa masterbatch. Mutuwu ufotokoza mwachidule zovuta zomwe zimachitika pakupanga filler masterbatch, pendani zifukwa zawo, ndikuyika patsogolo mayankho omwe akuwunikiridwa kuti athandize mabizinesi kuthana ndi zowawa zopangira ndikuwongolera kukhazikika kwazinthu.
5.1 Mavuto Odziwika Amtundu Wa Filler Masterbatch Ndi Mayankho Awo
5.1.1 Kusauka Kwabwino kwa Filler Masterbatch:
Ili ndiye vuto lalikulu kwambiri pakupanga filler masterbatch. Ziwonetsero zazikulu ndizo: masterbatch ali ndi agglomeration, ndipo mutatha kusakaniza ndi pulasitiki yoyambira, mawanga oyera, mawanga akuda kapena agglomeration amawonekera pomaliza, which affects the appearance and performance of the product.
Zoyambitsa: 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.
Zothetsera: 1) Select inorganic fillers with fine and uniform particle size (generally 800-2000 mesh), and sieve the fillers before use to remove large particles and agglomerates; 2) Wonjezerani mlingo wa dispersant moyenera (mkati mwa 1%-3% of the filler dosage) kapena m'malo ndi dispersant yogwirizana ndi filler ndi utomoni chonyamulira; 3) Konzani ndondomeko ya premixing, kuonjezera liwiro kusakaniza (800-1200 rpm pa) ndi kusanganikirana nthawi (5-10 minutes), ndi kulamulira kutentha kusakaniza pa 40-60 ℃ kusintha premixing yunifolomu; 4) Sinthani wononga kapangidwe ka extruder, kuwonjezera kuchuluka kwa zinthu zometa, kapena onjezerani liwiro la screw kuti muwonjezere mphamvu yometa ubweya; 5) Moyenera kuwonjezera kutentha processing wa extruder kuonetsetsa kuti chonyamulira utomoni wasungunuka kwathunthu, zomwe zimathandizira kubalalitsidwa kwa chodzaza.
5.1.2 Kukula Kwapang'onopang'ono kwa Filler Masterbatch:
Ziwonetsero zazikulu ndizo: kukula kwa tinthu ta masterbatch kumasiyanasiyana kwambiri, particles zina ndi zazikulu kwambiri, zina ndi zazing’ono kwambiri, ndipo pali zinthu zambiri zaufa, zomwe zimakhudza fluidity ya masterbatch ndi yunifolomu kusakaniza ndi pulasitiki m'munsi.
Zoyambitsa: 1) Kukula kwa dzenje la kufa kwa mutu wa kufa kwa extruder ndikosafanana kapena kutsekedwa; 2) Kuthamanga kwa extrusion ndi kuthamanga kwa granulator sikufanana; 3) Kuzizira kozizira kumakhala koyipa, ndipo mizereyo siimalimba mokwanira musanadulidwe, kuchititsa kudula kosiyana; 4) The mamasukidwe akayendedwe osakaniza ndi wosagwirizana, ndipo kuthamanga kwa extrusion kwa mikwingwirima sikufanana.
Zothetsera: 1) Sambani mutu wakufa nthawi zonse, fufuzani ndikusintha mbale ya kufa ndi mabowo osagwirizana, onetsetsani kuti kukula kwa dzenje lililonse kumagwirizana; 2) Sinthani liwiro la extrusion ndi liwiro lodula la granulator kuti zigwirizane (liwiro la kudula liyenera kukhala lalitali pang'ono kuposa liwiro la extrusion la mizere); 3) Konzani ndondomeko yozizira, 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
Ziwonetsero zazikulu ndizo: 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.
Zoyambitsa:
- 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;
- Mlingo wa mafuta odzola ndiwosakwanira, zomwe zimawonjezera kukangana pakati pa zinthuzo komanso kumakhudza madzimadzi.
Zothetsera:
- Chepetsani kuchuluka kwa zodzaza moyenerera, kapena sankhani chodzaza ndi dispersibility bwino kuti musinthe madzi;
- Bwezerani utomoni wonyamulirayo ndi index yosungunuka kwambiri (Mwachitsanzo, gwiritsani ntchito PE chonyamulira utomoni ndi kusungunuka index wa 2-5g/10min pa PE filler masterbatch);
- Moyenera kuwonjezera kutentha processing wa extruder kuonetsetsa kuti chonyamulira utomoni wasungunuka kwathunthu, kuonjezera fluidity ya masterbatch;
- Wonjezerani mlingo wamafuta moyenerera (mkati mwa 0.3%-1%), kuchepetsa kukangana pakati pa zipangizo, ndi kusintha fluidity.
5.1.4 Yellowing wa Filler Masterbatch
Ziwonetsero zazikulu ndizo: mtundu wa masterbatch umasanduka wachikasu, zomwe zimakhudza maonekedwe a pulasitiki yomaliza (makamaka mankhwala opepuka).
Zoyambitsa:
- Kukhazikika kwa kutentha kwa chonyamulira utomoni ndi osauka, ndi kuwola matenthedwe kumachitika pa mkulu processing kutentha;
- The additives (monga obalalitsa, mafuta opangira mafuta) 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.
Zothetsera:
- 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
Ziwonetsero zazikulu ndizo: thovu, pinholes and other defects appear in the final plastic product after the masterbatch is mixed with the base plastic.
Zoyambitsa:
- 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.
Zothetsera:
- Extend the drying time of the filler (drying temperature 80-100℃, drying time 3-5 maola), 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, kozizira ndi mpweya wokwanira, 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. Ziwonetsero zazikulu ndizo: the extrusion speed decreases sharply, the extrusion pressure rises rapidly, and even the equipment stops running.
Zoyambitsa:
- 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;
- Liwiro la screw ndilotsika kwambiri, 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.
Zothetsera:
- Stop the machine immediately, cut off the power supply, ndi kuumitsa bwino zipangizo musanayambitsenso;
- Kuonjezera kutentha processing wa extruder, ndipo dikirani kuti zinthu zomwe zili mumgolo zisungunuke kwathunthu musanapitirize kutulutsa;
- Phatikizani extruder, chotsani zonyansa zomwe zimatsekereza screw kapena kufa mutu, ndi kuyang'ana zipangizozo musanagwiritse ntchito kuchotsa zonyansa;
- Wonjezerani liwiro la screw moyenera kuti muwonetsetse kuti zida zikukankhira patsogolo bwino;
- Sambani mutu wakufa nthawi zonse (pambuyo pa gulu lililonse kupanga) kuchotsa zinthu zotsalira ndikupewa kutsekeka kwa dzenje.
5.2.2 Kuvala Kwambiri kwa Extruder Screw ndi Barrel
Ziwonetsero zazikulu ndizo: mphamvu ya kukameta ubweya ndi kuthamanga kwa extrusion kwa extruder kuchepa, dispersibility wa masterbatch amakhala osauka, kupanga bwino kumachepa, ndipo phula ndi mbiya zili ndi zizindikiro zowonekera.
Zoyambitsa:
- The filler ili ndi kuuma kwakukulu (such as heavy calcium carbonate, talc) ndi kukangana kwa nthawi yayitali ndi screw ndi mbiya;
- The materials contain impurities (monga zitsulo, miyala), zomwe zimafulumizitsa kuwonongeka kwa screw ndi mbiya;
- The processing temperature is too low, ndipo zipangizo zili ndi kukhuthala kwakukulu, zomwe zimawonjezera kukangana pakati pa zida ndi screw, mbiya;
- Zomangira ndi mbiya zimapangidwa ndi zinthu zomwe sizimavala bwino.
Zothetsera:
- Sankhani extruders ndi mkulu kuvala kukana (monga wononga ndi mbiya ndi bimetallic composite mankhwala kapena laser cladding mankhwala), monga HTS PLUS mndandanda wathu ndi HTS SUPER mndandanda extruders;
- Yesani zinthuzo musanagwiritse ntchito kuchotsa zonyansa, ndikusankha zodzaza ndi kuuma koyenera;
- Moyenera kuonjezera kutentha processing kuchepetsa mamasukidwe akayendedwe a zipangizo ndi kuchepetsa mikangano;
- Nthawi zonse fufuzani kuchuluka kwa wononga ndi mbiya, ndi kusintha zigawo zong'ambika mu nthawi;
- Onjezani kuchuluka koyenera kwamafuta kuzinthu kuti muchepetse kukangana pakati pa zida ndi screw, mbiya.
5.2.4 Kusakhazikika kwa Kutentha kwa Extruder
Ziwonetsero zazikulu ndizo: 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.
Zoyambitsa:
- 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.
Zothetsera:
- 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, improving product performance and optimizing processing efficiency. 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, functionalization, kuchuluka kodzaza, environmental protection and intelligence. Extrusion granulation technology, monga ukadaulo woyambira wopanga filler masterbatch, directly determines the quality and competitiveness of the masterbatch. Kuchita kwa ma extruders ndiye chinsinsi chowonetsetsa kukhazikika kwa ma filler masterbatch apamwamba kwambiri.
Tapanga mitundu yambiri yamapasa-screw extruder (Mndandanda wa HTS BASIC, HTS PLUS mndandanda, HTS SUPER mndandanda, Zithunzi za ZTE, Zithunzi za HTE) molingana ndi mawonekedwe a filler masterbatch zopangira ndi zofunikira pakukonza. Extruders athu ali ndi ubwino wa kukana kuvala mkulu, kumeta amphamvu ndi kusakaniza mphamvu, kuwongolera bwino kutentha, osiyanasiyana ntchito, Kupanga kwakukulu komanso kugwiritsa ntchito mphamvu zochepa, zomwe zimatha kukwaniritsa zosowa zamitundu yosiyanasiyana komanso kudzaza kosiyanasiyana kwa filler masterbatch. Popereka akulimbana mankhwala extruder ndi njira akatswiri processing, timathandizira opanga ma filler masterbatch kuthetsa zowawa zopanga, kupititsa patsogolo kupanga bwino, kuonetsetsa khalidwe la mankhwala, ndikupeza mwayi wampikisano mumpikisano wowopsa wamsika.
Kuyembekezera zam'tsogolo, ndi kupita patsogolo kosalekeza kwa sayansi ndi ukadaulo komanso mfundo zokhwima zoteteza chilengedwe, the filler masterbatch industry will face new opportunities and challenges. On the one hand, kufunikira kwa magwiridwe antchito apamwamba, 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; mbali inayi, 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, kukhala ochita bwino kwambiri, zopulumutsa mphamvu ndi wanzeru extruders ndi mizere granulation kupanga, ndikupereka mayankho aukadaulo komanso okwanira kwa opanga filler masterbatch. Nthawi yomweyo, tidzalimbitsa mgwirizano ndi mabizinesi akumtunda ndi kumunsi kwamakampani, kulimbikitsa kupita patsogolo kwaukadaulo komanso chitukuko chapamwamba chamakampani a filler masterbatch, ndikuthandizira kwambiri pakukula kokhazikika kwamakampani apulasitiki padziko lonse lapansi.