Filler Masterbatch Advanced Granulation Production Lines en Extrusion Technology Application

Mei de rappe ûntwikkeling fan 'e wrâldwide plestikyndustry, de fraach nei plestik produkten nimt dei ta dei ta, en de easken foar produktprestaasjes, kostenkontrôle en miljeubeskerming wurde ek hieltyd stranger. Filler masterbatch, as in kaai funksjoneel tafoeging yn plestik ferwurking, is in protte brûkt yn ferskate fjilden fan plestikproduksje fanwegen syn foardielen fan it ferminderjen fan produksjekosten, ferbetterjen fan produktprestaasjes en optimalisearjen fan ferwurkingseffisjinsje. Wy sette ús yn foar it leverjen fan avansearre granulaasjeproduksjelinen en hege prestaasjes extruders foar ferskate soarten filler masterbatch, fertrouwe op rike ûnderfining yn ekstruderingstechnologyûndersyk en ûntwikkeling en fabrikaazje, te foarsjen doelgericht, effisjinte en betroubere ferwurkingsoplossingen foar fabrikanten fan fillermasterbatch, it helpen fan bedriuwen te ferbetterjen produksje effisjinsje, soargje produkt kwaliteit, en krije in konkurrinsjefoardiel yn de fûle merk konkurrinsje.

This article will focus on the field of filler masterbatch, in-depth elaborating on the basic concepts, classification, production process of filler masterbatch, the core role of extrusion technology in its granulation production, the advantages of our extruder series and their targeted adaptation to filler masterbatch processing, as well as the specific application fields, usage methods and common problems and solutions in production. It will supplement detailed technical parameters, process details and industry pain points to enrich the content, meet the word count requirement of 3000-4000 words, and provide comprehensive and professional reference for relevant enterprises and practitioners in the filler masterbatch industry.

1. Overview of Filler Masterbatch Industry and Product Characteristics

1.1 Aktuele situaasje en ûntwikkelingstrend fan filler Masterbatch-yndustry

Yn de lêste jierren, dreaun troch de rappe ûntwikkeling fan downstream yndustry lykas ferpakking, konstruksje, automotive, elektroanika en deistige needsaak, de wrâldwide filler masterbatch-merk hat in stabile groeitrend toand. Filler masterbatch is in soarte fan gearstald materiaal dat wurdt makke troch mingen, smelten, ekstrudearjen en granulearjen fan anorganyske fillers (lykas calcium karbonaat, talk, barium sulfate, ensfh.) mei polymear dragers (lykas polyetyleen, polypropylene, polyvinyl chloride, ensfh.) en passende additieven (lykas dispersanten, kompatibilizers, lubricants, ensfh.) yn in bepaalde ferhâlding. De kearnfunksje is it ferminderjen fan de produksjekosten fan plestikprodukten, wylst de basisprestaasjes fan plestikprodukten ferbetterje of behâlde.

Neffens relevante gegevens statistiken, de grutte fan 'e wrâldwide filler masterbatch-merk is grutter 20 miljard Amerikaanske dollars, en it wurdt ferwachte te behâlden in groei taryf fan 6%-9% yn de kommende jierren. Under harren, kalsium karbonaat (CaCO3) filler masterbatch is it meast brûkte produkttype, goed foar mear as 60% fan 'e totale filler masterbatch-merk, folge troch talk filler masterbatch, barium sulfate (BaSO4) filler masterbatch en oare spesjale filler masterbatches. De regio Azië-Stille Oseaan is de grutste merk foar produksje en konsumpsje fan filler masterbatch yn 'e wrâld, goed foar mear as 50% fan it wrâldwide merkoandiel, dat is benammen te tankjen oan de rappe ûntwikkeling fan de plestik ferwurkjen yndustry yn Sina, Yndia en oare lannen, de enoarme fraach nei kostenreduksje en prestaasjesferbettering fan plestikprodukten, en de trochgeande ferbettering fan yndustriële stypjende kapasiteit.

De ûntwikkelingstrend fan 'e filler-masterbatch-yndustry wurdt benammen wjerspegele yn fjouwer aspekten: earste, hege prestaasjes en funksjonalisaasje. Mei it opwurdearjen fan downstream plastic produkt easken, filler masterbatch is net langer beheind ta kostenreduksje, mar stadichoan ûntwikkelet nei funksjonalisaasje, lykas it ferbetterjen fan de rigiditeit, hurdens, waarmte ferset, waarresistinsje en barriêre-eigenskippen fan plestikprodukten, en it ûntwikkeljen fan spesjale funksjonele filler-masterbatches lykas flammefertrager, antistatysk en antibakteriel; twadde, hege filling bedrach en goede dispersibility. Under it útgongspunt fan it garandearjen fan produktprestaasjes, it fergrutsjen fan it folling bedrach fan anorganyske fillers kin de produksjekosten fierder ferminderje, dy't hegere easken stelt oan 'e dispersibiliteit fan filler masterbatch - poerbêste dispersibiliteit kin derfoar soargje dat de filler gelijkmatig ferdield is yn 'e plestik matrix, it foarkommen fan it ferskinen fan wite flekken, swarte flekken of agglomeraasje yn it einprodukt; tredde, miljeubeskerming en lege fersmoarging. Mei it fersterkjen fan wrâldwide miljeubeskermingsbelied en it ferbetterjen fan bewustwêzen foar miljeubeskerming, fabrikanten fan filler masterbatch nimme stadichoan miljeufreonlike tafoegings en produksjeprosessen oan, it ferminderjen fan de útstjit fan skealike stoffen, en it ûntwikkeljen fan ôfbreekbere filler masterbatch om oan te passen oan 'e ûntwikkelingstrend fan griene plestik; fjirde, yntelliginsje en effisjinsje fan produksje apparatuer. Om te foldwaan oan de grutskalige, continuous and high-quality production needs of filler masterbatch, manufacturers are constantly introducing advanced granulation production lines and intelligent control systems, improving production efficiency, reducing labor costs and ensuring product quality stability.

Against this background, extrusion granulation technology, as the core technology of filler masterbatch production, has become the key to determining the quality of filler masterbatch and the competitiveness of enterprises. The performance of extruders directly affects the dispersibility, particle shape, melting index and other key indicators of filler masterbatch. Our professional extruders and granulation production lines for filler masterbatch are developed in response to the characteristics of the industry and market demand, which can effectively solve the pain points in filler masterbatch processing (such as poor dispersibility, uneven particle size, low filling amount, hege enerzjyferbrûk, ensfh.) 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 sulfate (BaSO4) filler masterbatch, and other special filler masterbatches (such as kaolin filler masterbatch, carbon black filler masterbatch, glass fiber filler masterbatch, ensfh.).

• 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, pipes, ensfh.). 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, 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, good transparency, gemyske inertness en strieling ferset. Barium sulfate filler masterbatch is geskikt foar plestik produkten mei hege easken oan transparânsje, witheid en gemyske stabiliteit (such as plastic films, plestik flessen, medyske plestik produkten, ensfh.), en kin ek brûkt wurde yn strieling-proof plestik produkten (lykas medyske beskermingsapparatuer, nukleêre krêftsintrales accessoires, ensfh.).

1.2.2 Klassifikaasje troch Carrier Resin:

Neffens it type dragerhars brûkt, filler masterbatch kin wurde ferdield yn polyetyleen (PE) filler masterbatch, polypropylene (PP) filler masterbatch, polyvinyl chloride (PVC) filler masterbatch, polyetyleentereftalaat (HÚSDIER) filler masterbatch, ensfh. De seleksje fan dragerhars wurdt benammen bepaald troch it type downstream plestikprodukten. Bygelyks, PE filler masterbatch is geskikt foar PE plestik produkten (such as plastic films, bags, pipes); PP filler masterbatch is geskikt foar PP plestik produkten (such as woven bags, ynjeksje moulding dielen, automotive dielen); PVC filler masterbatch is geskikt foar PVC plestik produkten (such as PVC pipes, profilen, blêden).

1.2.3 Klassifikaasje troch applikaasjefjild:

According to the application field of downstream plastic products, filler masterbatch can be divided into film-grade filler masterbatch, injection-grade filler masterbatch, extrusion-grade filler masterbatch, blow molding-grade filler masterbatch, ensfh. 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. Under harren, dispersibility is the most critical indicator—poor dispersibility will lead to uneven distribution of fillers in plastic products, resulting in defects such as white spots, black spots, agglomeration and brittle products, which seriously affect the appearance and performance of plastic products. Dêrom, the selection of advanced extrusion equipment and scientific processing technology is crucial to ensure the dispersibility and overall quality of filler masterbatch.

2. Core Technology of Filler Masterbatch Production: Extrusion Granulation Technology

Extrusion granulation technology is the core technology of filler masterbatch production, which integrates mixing, smelten, shearing, dispersion and granulation. It has the advantages of high production efficiency, good product quality, strong adaptability to raw materials and wide application range. 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 Skaaimerken fan filler Masterbatch grûnstoffen en easken foar extrusion Equipment

De grûnstoffen fan filler masterbatch omfetsje foaral trije dielen: anorganyske fillers (lykas CaCO3, talk, BaSO4), polymear dragers (lykas PE, PP, PVC) en tafoegings (lykas dispersanten, kompatibilizers, lubricants, antioxidants, ensfh.). De skaaimerken fan dizze grûnstoffen binne hiel oars, dy't spesjale easken stelt foar extrusionapparatuer:

Earste, de anorganyske fillers hawwe hege hurdens, minne kompatibiliteit mei polymeardragers, en binne maklik te agglomerearje. De measte anorganyske fillers (lykas CaCO3, talk) binne hydrophilic, wylst polymerdragers hydrofoob binne, wat liedt ta minne kompatibiliteit tusken fillers en dragers. As it mingen en skuorjen net genôch binne, de fillers sille agglomerearje, dy't net unifoarm yn 'e drager ferspraat wurde kinne, resultearret yn minne kwaliteit fan filler masterbatch. Derneist, de hege hurdens fan anorganyske fillers sil serieuze slijtage feroarsaakje oan 'e skroef en barrel fan' e extruder tidens it ekstruderingsproses, dy't fereasket dat de skroef en de loop fan 'e extruder ekstreem hege wearbestindich hawwe.

Twadde, it mingsel fan filler masterbatch hat hege viskositeit en minne fluidity. Tafoeging fan in grut oantal anorganyske fillers sil gâns tanimme de viscosity fan it mingsel, ferminderje de ferwurkjen fluidity, en easkje dat de extruder sterke transportkapasiteit en skuorkrêft hat om de glêde fuortgong fan it smelten te garandearjen, mingen en extrusion.

Tredde, it ferwurkjen temperatuer berik is smel. Ferskillende dragerharsen hawwe ferskillende smeltpunten en thermyske stabiliteit. Bygelyks, it smeltpunt fan PE is 100-130 ℃, it smeltpunt fan PP is 160-170 ℃, en PVC is maklik te ûntbinen by hege temperatueren (boppe 160 ℃). Dêrom, de extrusion-apparatuer moat krekte kapasiteit foar temperatuerkontrôle hawwe om te soargjen dat it mingsel folslein smelt is sûnder termyske ûntbining, en om de ûntbining fan additieven en de efterútgong fan produktprestaasjes te foarkommen.

Op grûn fan boppesteande skaaimerken, single-screw extruders binne net geskikt foar grutskalige en heechweardige produksje fan filler masterbatch. Omdat de single-screw extruder hat in smel shear berik, minne pompkapasiteit en gjin selsreinigjende effekt. By it ferwurkjen fan miks mei hege viskositeit en hege filler, it is maklik om materiaal accumulation te feroarsaakjen, blokkade en oneffen mingen yn de extruder barrel, resultearret yn minne dispersibility fan filler masterbatch, unjildich dieltsje grutte en ynstabile produkt kwaliteit. Derneist, de single-screw extruder hat hege enerzjyferbrûk by it ferwurkjen fan hege fillermaterialen, en de skroef en de loop binne swier droegen, wat de produksjekosten en de kosten foar ûnderhâld fan apparatuer fan bedriuwen fergruttet.

Twin-screw extruders, oan de oare kant, hawwe fanselssprekkende foardielen yn filler masterbatch produksje en binne de mainstream apparatuer wurden foar filler masterbatch extrusion granulaasje. Twin-screw extruders hawwe in breder shear berik, effektiver pompeffekt en selsreinigjende effekt, dy't de problemen fan minne kompatibiliteit effektyf kinne oplosse, maklike agglomeraasje en minne fluiditeit fan filler masterbatch grûnstoffen. It yngripen en rotearjen fan 'e twillingskroeven kin in sterke skuorkrêft en kneadkrêft generearje, dy't de agglomeraten fan anorganyske fillers folslein kinne brekke, meitsje de fillers unifoarm ferspraat yn 'e polymeardrager, en soargje foar de dispersibility en stabiliteit fan it produkt. Derneist, de twin-screw extruder hat goede temperatuer kontrôle accuracy, sterke oanpassing oan grûnstoffen, en kin oanpasse oan de ferwurking fan ferskate soarten, ferskillende folling bedraggen fan filler masterbatch, en hat hege produksje effisjinsje en lege enerzjyferbrûk.

2.2 Wurkprinsipe fan Filler Masterbatch Extrusion Granulation

It ekstruderingsgranulaasjeproses fan fillermasterbatch is in kompleks fysyk en gemysk proses, dy't de ynteraksje fan meardere faktoaren omfettet, lykas temperatuer, druk, skuorkrêft en tiid. It spesifike wurkprinsipe en prosesstream binne as folget:

Earste, grûnstof foarbehanneling. De grûnstoffen fan filler masterbatch (anorganyske fillers, carrier resin, tafoegings) moatte foarbehannele wurde om de kwaliteit fan it definitive produkt te garandearjen. De spesifike stappen omfetsje: 1) Drying behanneling: Anorganyske fillers (lykas CaCO3, talk) binne meast hydrophilic en befetsje in bepaalde hoemannichte focht. As it fochtgehalte te heech is, it sil beynfloedzje it mingen effekt en dispersibility fan de materialen, en sels bubbels feroarsaakje yn 'e extrudearre masterbatch. Dêrom, de fillers moatte droege wurde yn in droeger (lykas in waarme lucht droeger, in fakuüm droeger) om it fochtgehalte nei ûnderen te ferleegjen 0.5%. 2) Ferpletterjen en sieden: De drager hars (lykas PE, PP) wurdt ferpletterd yn lytse dieltsjes of poeder mei in dieltsje grutte fan 20-40 mesh, wat befoarderlik is foar unifoarm mingen mei fillers en tafoegings. Anorganyske fillers wurde ek sied om ûnreinheden en grutte dieltsjes te ferwiderjen, garandearje de fynheid en uniformiteit fan fillers. 3) Premixing: Neffens de formule ratio, de droege fillers, drager hars dieltsjes en tafoegings (dispersanten, kompatibilizers, lubricants, ensfh.) wurde yn in hege-snelheid mixer set foar premixing. De mingsnelheid is algemien 800-1200 rpm, en it mingen tiid is 5-10 minuten. It doel fan premixing is om de additieven evenredich te meitsjen oan it oerflak fan fillers en dragerhars, ferbetterje de kompatibiliteit tusken fillers en drager, en lei in fûnemint foar folgjende extrusion mingen. De dispersant is in kaai tafoeging yn premixing, dat kin foarmje in beskermjende film op it oerflak fan de filler, ferminderje de oerflak enerzjy fan de filler, foarkomme dat de filler agglomerearret, en ferbetterje de dispersibiliteit fan 'e filler yn' e dragerhars.

Twadde, feeding en conveying. It premixed mingsel wurdt stjoerd nei de feed hopper fan de twin-screw extruder fia in skroef feeder of in riem feeder. The feeding speed needs to be uniform and stable, which is matched with the screw speed and extrusion speed of the extruder, to ensure that the materials enter the extrusion cavity stably and avoid material accumulation or insufficient feeding. It feedapparaat fan 'e extruder is normaal foarsjoen fan in funksje foar regeljouwing fan frekwinsjekonverzje snelheid, which can adjust the feeding speed according to the actual production situation.

Tredde, smelten, mingen en skjirre. 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, de materialen wurde stadichoan komprimearre ûnder de aksje fan de skroeven en de loop, en de druk yn 'e extrusion holte stadichoan nimt ta (algemien 3-15MPa). Tagelyk, de materialen wurde ûnderwurpen oan sterke skuorkrêft en wriuwingskrêft generearre troch de relative beweging tusken de skroeven en de loop, likegoed as tusken de skroef flechten.

De skuorkrêft en wriuwingskrêft kinne de agglomeraten fan anorganyske fillers folslein brekke, meitsje de fillers unifoarm ferspraat yn 'e gesmolten dragerhars, en befoarderje de fúzje en kompatibiliteit tusken de fillers en de drager. De wriuwingskrêft kin ek in bepaalde hoemannichte waarmte generearje, dat wurdt kombinearre mei de eksterne ferwaarming fan it barrel (elektryske ferwaarming of stoom ferwaarming) om de dragerhars stadichoan te smelten en te plastisearjen. De barrel fan 'e extruder wurdt meastentiids ferdield yn 3-6 temperatuer kontrôle seksjes (feeding seksje, melting seksje, mingen seksje, homogenizing seksje, ensfh.), en de temperatuer fan elke seksje wurdt krekt kontrolearre neffens it type dragerhars en filler. Bygelyks, by it ferwurkjen fan PE carrier filler masterbatch, de temperatuer fan 'e feeding seksje is 80-100 ℃, de melting seksje is 120-140 ℃, de mingdiel is 140-150 ℃, en de homogenisearjende seksje is 130-140 ℃; by it ferwurkjen fan PP carrier filler masterbatch, de temperatuer fan elke seksje is 20-30 ℃ heger as dy fan PE-drager.

Fjirde, extrusion en foarmjouwing. De folslein smelte, mingd en ferspraat materiaal wurdt skood oan 'e die kop fan' e extruder troch de screws. De die kop is foarsjoen fan meardere die gatten (it oantal en grutte fan die gatten wurde bepaald neffens de dieltsje grutte fan de masterbatch), en it materiaal wurdt extruded út 'e die gatten op in hege snelheid te foarmjen trochgeande strips fan unifoarm dikte. De temperatuer fan 'e diekop is wat leger as dy fan' e homogenisearjende seksje, wat kin foarkomme dat it materiaal troch te hege temperatuer ûntbrekt en it foarmjende effekt fan 'e strips garandearje.

Fyfde, cooling en cutting. De ekstrudearre strips wurde stjoerd nei in koelapparaat (lykas in wettertank, in luchtkuolle cunewalde) foar snelle koeling. De koeltemperatuer is algemien 20-30 ℃, en de cooling tiid is 2-5 minuten. Snelle koeling kin meitsje dat de strips gau fêstigje, behâlde de foarm en grutte fan de strips, en foarkomme deformation. Nei ôfkuolling, de strips wurde stjoerd nei in granulator foar cutting. De granulator is foarsjoen fan in rotearjend mes, dy't de strips kin snije yn korrelige filler masterbatch mei unifoarme grutte (de dieltsje grutte is algemien 2-5mm, dy't kin wurde oanpast neffens klant behoeften). De snelheid fan it rotearjende mes is oerienkomme mei de transportsnelheid fan 'e strips om te soargjen dat de dieltsjegrutte fan' e masterbatch unifoarm is.

Seisde, screening en ferpakking. De cut granulêre filler masterbatch wurdt stjoerd nei in vibrearjend skerm foar screening, dy't ûnkwalifisearre dieltsjes kinne ferwiderje (lykas te grut, te lyts of agglomerearre dieltsjes) en soargje foar de uniformiteit fan it produkt. De kwalifisearre masterbatch wurdt dan stjoerd nei in automatyske ferpakkingsmasine foar ferpakking. De ferpakkingsspesifikaasjes kinne wurde oanpast neffens klantferlet (such as 25kg/bag, 50kg/bag), and the packaging should be sealed and moisture-proof to prevent the masterbatch from absorbing moisture and affecting the quality. After packaging, the products are stored in a dry, cool and ventilated warehouse.

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. Bygelyks, the particle size of inorganic fillers directly affects the dispersibility and fineness of the masterbatch. The finer the particle size of the filler (meastal 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%; as it fochtgehalte te heech is, it will cause bubbles in the masterbatch, affect the density and mechanical properties of the product. De suverens fan grûnstoffen is ek tige wichtich; impurities in raw materials (such as stones, metals, stof) will not only affect the quality of the masterbatch, mar ek drage de skroef en barrel fan de extruder, en sels feroarsaakje apparatuer blokkade.

2.3.2 Formule 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. Bygelyks, the dispersant dosage is generally 1%-3% of the filler dosage; te min dispersant sil liede ta minne dispersibility fan de filler, en tefolle dispersant sil beynfloedzje de komptabiliteit tusken de masterbatch en de streamôfwerts plestik produkten, en ferminderje de meganyske eigenskippen fan 'e produkten. De kompatibilisator wurdt brûkt om de kompatibiliteit tusken de filler en de dragerhars te ferbetterjen; de dosering is algemien 0.5%-2%, dy't de dispersibiliteit en meganyske eigenskippen fan 'e masterbatch signifikant kinne ferbetterje. It smeermiddel wurdt brûkt om de wriuwing tusken de materialen en de skroef te ferminderjen, barrel en die kop, ferbetterje de ferwurkingsfluiditeit, en foarkomme dat de materialen oan 'e apparatuer plakke; de dosering is algemien 0.3%-1%.

2.3.3 Premixing-effekt:

Premixing is de basis fan extrusion granulation. De uniformiteit fan premixing hat direkt ynfloed op de dispersibiliteit fan 'e filler yn' e dragerhars. As de premixing ûnjildich is, de tafoegings kinne net unifoarm fêstmakke wurde oan it oerflak fan 'e filler en drager, resultearret yn lokale agglomeraasje fan de filler, ûnjildich mingen fan de materialen by extrusion, en minne kwaliteit fan 'e masterbatch. Om it premix-effekt te garandearjen, it is nedich om de mingsnelheid te kontrolearjen, mingtiid en mingtemperatuer. De mingsnelheid is algemien 800-1200 rpm, it mingen tiid is 5-10 minuten, en de mingtemperatuer wurdt regele op 40-60 ℃ (passende temperatuer kin ferbetterje de adhesion fan tafoegings en befoarderje unifoarm mingen).

2.3.4 Extrusion Parameters:

Extrusionparameters binne de wichtichste faktoaren dy't it granulaasjeeffekt beynfloedzje, benammen ynklusyf screw snelheid, extrusion temperatuer en extrusion druk.

• Screw Speed: De skroef snelheid algemien fariearret fan 150 nei 600 rpm. Hoe heger de skroef snelheid, hoe grutter de skuorkrêft en wriuwingskrêft ûntfongen troch de materialen, hoe better it ming- en dispergereffekt fan 'e filler, en hoe heger de produksje effisjinsje. Lykwols, as de skroef snelheid is te heech, de ferbliuwstiid fan de materialen yn de extrusion holte is te koart, resultearret yn ûnfolsleine smelten fan de drager hars, ûnfoldwaande mingen fan de materialen, en oneffen dieltsje grutte fan de masterbatch; as de skroef snelheid is te leech, de skuorkrêft en wriuwingskrêft binne net genôch, de filler kin net folslein ferspraat wurde, en de produksje effisjinsje is leech. De skroefsnelheid moat wurde oanpast neffens de folling bedrach en type filler masterbatch-foar heech-filling masterbatch, in hegere skroef snelheid is nedich om te garandearjen genôch shearing en mingen.
• Extrusion Temperatuer: De extrusion temperatuer is ferdield yn meardere seksjes (feeding seksje, melting seksje, mingen seksje, homogenizing seksje, die kop seksje), en de temperatuer fan elke seksje moat krekt kontrolearre wurde neffens it type dragerhars en filler. De temperatuer fan 'e feeding seksje is leger (wat heger as it rylpunt fan 'e dragerhars), dat is benammen om te foarkommen dat de materialen koekje en soargje foar glêde fieding; de temperatuer fan 'e smeltende seksje is medium, dat is benammen te befoarderjen it smelten en plasticization fan de drager hars; de temperatuer fan it mingen seksje is heger, dat is benammen te ferbetterjen de skear en mingde effekt, en befoarderje de unifoarme fersprieding fan 'e filler; de temperatuer fan de homogenizing seksje is wat leger as it mingen seksje, dat is benammen om de unifoarme temperatuer en viskositeit fan 'e materialen te garandearjen, en foarkomme termyske ûntbining; de temperatuer fan de die kop seksje is wat leger as de homogenizing seksje, dat is om it foarmjende effekt fan 'e strips te garandearjen.
• Extrusion druk: De extrusion druk is algemien 3-15MPa. De druk yn 'e extrusionholte wurdt benammen bepaald troch de kompresjeferhâlding fan' e skroef, de gat grutte en de skroef snelheid. Hoe heger de extrusion druk, hoe better it mingen en fersprieden effekt fan de materialen, en de tichter de masterbatch dieltsjes. Lykwols, as de druk te heech is, it sil it enerzjyferbrûk en wear fan 'e apparatuer ferheegje, en sels feroarsaakje de stjerkop te blokkearjen; as de druk te leech is, de materialen kinne net folslein komprimearre en mingd wurde, de masterbatch dieltsjes binne los, en de prestaasje is ynstabyl.

2.3.5 Die Head Struktuer:

De diekopstruktuer omfettet benammen it nûmer, foarm en grutte fan die gatten. De foarm fan it die gat bepaalt de dwerstrochsneed foarm fan de extruded strips (lykas circular, plein), en de grutte fan it die gat bepaalt de earste diameter fan de strips en de definitive dieltsje grutte fan de masterbatch. De lytser de grutte fan it die gat, wat grutter de extrusion druk, it better it mingen en dispersing effekt, mar de produksjekapasiteit sil wurde fermindere; de grutter de die gat grutte, de legere de extrusion druk, de legere de produksje effisjinsje, mar de partikelgrutte fan 'e masterbatch is grutter. It oantal die gatten beynfloedet de produksje kapasiteit; hoe mear it oantal die gatten, wat heger de produksjekapasiteit, mar it is nedich om te soargjen dat de druk ferdieling is unifoarm, om unjildiche dikte fan 'e strips en unjildige dieltsjegrutte fan' e masterbatch te foarkommen.

3. Us Extruders: Foardielen en Product Series foar Filler Masterbatch Production

Wy binne al lang dwaande mei it ûndersyk, ûntwikkeling en produksje fan hege-optreden extruders en granulation produksje linen, en hawwe rike ûnderfining sammele op it mêd fan filler masterbatchferwurking. Neffens de skaaimerken fan filler masterbatch grûnstoffen (hege hurdens, min komptabiliteit, hege viskositeit) en ferwurkjen easken (goede dispersibility, unifoarm dieltsje grutte, hege filling bedrach), wy hawwe ûntwikkele in rige fan twin-screw extruders spesjaal geskikt foar filler masterbatch produksje. Us extruders hawwe de foardielen fan hege wear ferset, sterke skuorkrêft, presys temperatuer kontrôle, stabile prestaasjes en lege bedriuwsfieringskosten, dy't kin foldwaan oan de ferwurking behoeften fan ferskate soarten, ferskillende folling bedraggen fan filler masterbatch (CaCO3, talk, BaSO4, ensfh.), en help bedriuwen ferbetterje produksje effisjinsje, soargje foar produktkwaliteit en ferminderje produksjekosten.

3.1 Wichtichste foardielen fan ús Extruders foar Filler Masterbatch-produksje

3.1.1 Hege Wear Resistance, Lang Service Life:

Doel op it probleem dat anorganyske fillers (lykas CaCO3, talk) hawwe hege hurdens en maklik te dragen de skroef en barrel, wy nimme heechweardige slijtbestindige materialen en avansearre produksjetechnology oan om de slijtbestriding fan 'e kearnkomponinten fan' e extruder te garandearjen. De skroef en barrel binne makke fan ymportearre wear-resistant alloy stiel (lykas 38CrMoAlA), en nei nitriding behanneling of bimetallic gearstalde behanneling, de oerflak hurdens kin berikke ≥65 HRC, dat hat ekstreem sterke wear ferset en corrosie ferset, en kin effektyf wjerstean de wear feroarsake troch de wriuwing tusken de hege-hurdens filler en de komponinten. Dit gâns ferlingt de tsjinst libben fan de skroef en barrel, ferleget de frekwinsje fan komponint ferfanging, en ferleget de ûnderhâldskosten fan 'e apparatuer. Derneist, wy leverje ek tsjinsten foar profesjonele weardeteksje foar de skroef en de loop. Us technyske team sil regelmjittich de weargraad fan 'e skroef en barrel foar klanten detectearje, útjaan in detaillearre wear rapport, en foarstelle doelgerichte ferfanging en ûnderhâld suggestjes, soargje dat klanten allinich komponinten ferfange as it nedich is, it foarkommen fan ûnnedige ôffal.

3.1.2 Sterke skuor- en mingkapasiteit, Excellent dispersibility:

De kaai foar produksje fan fillermasterbatch is om de unifoarme fersprieding fan fillers te garandearjen. Us twin-screw extruders oannimme in intermehing co-rotating twin-screw struktuer, mei in ridlike schroef pitch, lead en kompresje ratio design. It yngripen en rotearjen fan 'e twillingskroeven kin in sterke skuorkrêft en kneadkrêft generearje, dy't de agglomeraten fan anorganyske fillers folslein kinne brekke, meitsje de fillers unifoarm ferspraat yn 'e gesmolten dragerhars, en soargje foar de dispersibiliteit fan 'e masterbatch. De skroef is ûntwurpen mei in modulêre struktuer, en ferskillende skroef eleminten (lykas it oerbringen fan eleminten, mingen eleminten, shearing eleminten) kin frij kombineare wurde neffens it type en folling bedrach fan filler masterbatch, sa as de skuorkrêft en it mingeffekt oan te passen, en berikke it bêste ferwurkingseffekt. Bygelyks, by it ferwurkjen fan hege-filling CaCO3 masterbatch, wy kinne mear skuorjende eleminten konfigurearje om it skuoreffekt te ferbetterjen en de unifoarme fersprieding fan 'e filler te garandearjen; by it ferwurkjen fan talkmasterbatch dy't hege minguniformiteit fereasket, wy kinne mear mingde eleminten konfigurearje om it mingeffekt te ferbetterjen.

3.1.3 Precise temperatuerkontrôle, Stabile prestaasjes:

Us extruders nimme avansearre yntelliginte temperatuerkontrôlesystemen oan, dy't krekte kontrôle fan 'e temperatuer fan elke seksje fan' e barrel en de diekop realisearje kin. De krektens fan temperatuerkontrôle kin ± 1 ℃ berikke, dat kin soargje dat de drager hars is folslein smolten sûnder termyske ûntbining, en de tafoegings wurde net ûntbûn, garandearje de stabiliteit fan it produkt prestaasjes. It temperatuerkontrôlesysteem is foarsjoen fan in real-time tafersjoch- en alarmfunksje. As de temperatuer fan elke seksje grutter is as it ynstelde berik, it systeem sil op 'e tiid in alarm prompt útjaan, en sels automatysk de ferwaarmingskrêft oanpasse of de apparatuer as nedich ôfslute, om apparatuerfalen en problemen mei produktkwaliteit te foarkommen. Derneist, de extruder is foarsjoen fan in hege-precision druk sensor, dat kin tafersjoch op de extrusion druk yn real time. As de druk te heech of te leech is, it systeem sil oanpasse de skroef snelheid of feeding snelheid automatysk, garandearjen fan de stabiliteit fan it extrusion proses.

3.1.4 Wide Application Range, Sterke fleksibiliteit:

Us extruder-searje kin oanpasse oan 'e ferwurkingsbehoeften fan ferskate soarten fillermasterbatch, ynklusyf CaCO3 filler masterbatch, talc filler masterbatch, BaSO4 filler masterbatch, and other special filler masterbatches. It filling bedrach kin oanpast wurde fan 30% nei 80%, dat kin foldwaan oan de ferskillende kosten en prestaasjes easken fan klanten. It modulêre ûntwerp fan 'e extruder (skroef, barrel, die kop, ensfh.) 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. Derneist, 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 Hege produksje effisjinsje, Low Energy Consumption:

Our twin-screw extruders have high production efficiency, which is much higher than that of single-screw extruders. De produksjekapasiteit fan ús extruders farieart fan 100 kg / h oant 3000 kg / h, dat kin foldwaan oan de produksje behoeften fan ferskate skalen fan bedriuwen (lyts, medium en grut). It oandriuwsysteem mei hege koppel en optimalisearre skroefûntwerp fan 'e extruder kinne de transportkapasiteit en plastifikaasje-effisjinsje fan materialen effektyf ferbetterje, it ferminderjen fan de ferbliuwstiid fan materialen yn de extrusion holte en ferbetterjen produksje effisjinsje. Tagelyk, de extruder nimt in enerzjybesparjend ûntwerp oan, lykas in motor mei hege effisjinsje, in waarmte recovery apparaat, ensfh., dat kin ferminderjen de ienheid enerzjyferbrûk troch 15%-25% ferlike mei gewoane extruders, bedriuwen helpe om produksjekosten te ferminderjen.

3.1.6 Maklike operaasje en ûnderhâld:

Us extruders oannimme in PLC yntelligint kontrôle systeem en in touch skerm operaasje ynterface, dat is ienfâldich en yntuïtyf, maklik te betsjinjen. The system can store multiple sets of product formulas and processing parameters. When customers produce different types of filler masterbatch, they only need to call the corresponding formula and parameters, without repeated debugging, which saves time and improves production efficiency. The modular design of the equipment makes the maintenance more convenient. The screw, barrel, die head and other components can be disassembled and assembled quickly, which reduces the maintenance time and labor intensity. Our after-sales service team will provide professional installation, commissioning and training services for customers, ensuring that customers can use the equipment smoothly.

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, ynklusyf HTS BASIC rige, HTS PLUS rige, HTS SUPER rige, ZTE rige en HTE rige. 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.

The HTS BASIC series extruders are a cost-effective product series independently developed by us, which are specially designed for filler masterbatch processing enterprises with medium and small production scales or initial entry into the industry. This series of extruders uses medium-torque gearboxes from leading European manufacturers, which have the advantages of stable performance, low noise, high efficiency and long service life. 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), and at the same time, it has a reasonable price, which can help enterprises reduce the initial investment cost.

In terms of structural design, 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). Ien fan 'e grutste foardielen fan dizze rige is dat it kin biede fleksibele opsjes fia ferskate konfiguraasje kombinaasjes. Klanten kinne kieze ferskate skroef eleminten, de koppen, feeding devices, drying devices and post-processing equipment according to their own product types, production capacity and budget, om in produksjeline te foarmjen dy't geskikt is foar har eigen behoeften.

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, talk) 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.

Derneist, the HTS PLUS series extruders have a stronger mixing and shearing capacity, which can fully disperse the high-filling fillers in the carrier resin, garandearjen fan de dispersibility en stabiliteit fan de masterbatch. It is foaral geskikt foar de produksje fan filler masterbatch brûkt yn auto-ûnderdielen, home appliance shells, heechweardige plestikfilms en oare plestikprodukten mei hege prestaasjes.

3.2.3 HTS SUPER Series Extruders: Top-End Choice foar High-End Filler Masterbatch.

De extruders fan 'e HTS SUPER-searje adoptearje it lêste oerdrachtapparaat mei ultra-hege koppel ûnôfhinklik ûntwikkele troch ús. Doel fan it hege koppel en hege snelheid skaaimerken fan dizze rige, it strukturele ûntwerp fan elke kaaikomponint fan 'e extruder is folslein optimalisearre, dat is ús heechste-ein extruder rige, fertsjintwurdiget it avansearre nivo fan Sina syn extruder ûntwikkeling. Dizze searje extruders wurdt benammen brûkt foar it ferwurkjen fan hege ein, spesjale en hege prestaasjes 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, barium sulfate) 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.

De produksjekapasiteit fan 'e HTS SUPER-serie extruders farieart fan 1000kg / h oant 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, 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. Bygelyks, if the enterprise mainly produces low-to-medium filling CaCO3 masterbatch (filling amount ≤60%) and common PE/PP carrier masterbatch, de HTS BASIC rige of ZTE rige extruders binne geskikt; as de ûndernimming hege-filling masterbatch produseart (filling amount ≥60%), talk masterbatch of BaSO4 masterbatch, de HTS PLUS rige extruders wurde oanrikkemandearre; as it bedriuw heechweardich produsearret, spesjale filler masterbatch (lykas glêstried fersterke masterbatch, flammefertragende masterbatch), de HTS SUPER rige extruders binne de bêste kar; as it bedriuw grutskalich neistribbet, enerzjybesparjende en hege effisjinsje produksje, de HTE rige extruders binne geskikt.

3.3.2 Bepale de produksjekapasiteit fan 'e extruder neffens de produksjeskaal:

Bedriuwen moatte de extruder selektearje mei passende produksjekapasiteit neffens har eigen produksjeskaal en fraach fan 'e merk. As de produksje skaal is lyts (deistige output minder as 1 ton), de ZTE rige of HTS BASIC rige extruders mei produksje kapasiteit fan 50-300kg / h binne geskikt; as de produksje skaal is medium (deistige útfier 1-5 tonnen), de HTS BASIC rige of HTS PLUS rige extruders mei produksje kapasiteit fan 300-1000kg / h binne geskikt; as de produksje skaal is grut (deistige output mear as 5 tonnen), it is oan te rieden om de HTS PLUS-searje te kiezen, HTS SUPER rige of HTE rige extruders mei produksje kapasiteit fan mear as 1000kg / h.

3.3.3 Tink oan de wearbestindigens fan 'e apparatuer:

De slijtweerstand fan 'e skroef en barrel is in wichtige faktor dy't de libbensdoer en de bedriuwskosten fan' e extruder beynfloedet. Foar bedriuwen dy't fillers mei hege hurdens ferwurkje (such as heavy calcium carbonate, talk) of hege-filling masterbatch, it is nedich om extruders te selektearjen mei hege wearbestindich (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:

Enterprises should not only pay attention to the initial investment cost of the equipment, but also consider the long-term operating cost (such as energy consumption, maintenance cost, spare parts cost). Bygelyks, 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, dat is geskikt foar bedriuwen mei beheind budzjet en lytsskalige produksje.

3.3.5 Jou omtinken oan 'e tsjinst nei ferkeap fan' e apparatuer:

De tsjinst nei-ferkeap fan 'e apparatuer is krúsjaal foar de normale wurking fan' e produksjeline. Bedriuwen moatte fabrikanten selektearje mei perfekte tsjinstsystemen nei ferkeap, dy't profesjonele ynstallaasje kinne leverje, commissioning, trening, ûnderhâld en reserve dielen oanbod tsjinsten. Wy hawwe in profesjonele after-sales service team, dy't op 'e tiid kinne reagearje op klantbehoeften (biede oplossingen binnen 24 oeren) en stjoer monteurs nei de side foar ûnderhâld as it nedich is, it garandearjen fan de normale wurking fan 'e produksjeline.

3.3.6 Tink oan de fleksibiliteit en útwreidzjen fan 'e apparatuer:

Mei de feroaringen fan merk fraach, enterprises may need to adjust their product types and filling amounts. Dêrom, 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 in kaai funksjoneel tafoeging yn plestik ferwurking, has a wide range of application fields, covering various fields such as plastic packaging, konstruksje, automotive, elektroanika, 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. It folgjende sil de spesifike applikaasjefjilden en gebrûksmetoaden fan filler masterbatch yn detail yntrodusearje:

4.1 Applikaasjefjilden fan Filler Masterbatch

Filler masterbatch kin brûkt wurde yn 'e ferwurking fan ferskate plestik produkten, en ferskate soarten filler masterbatch hawwe ferskillende tapassingsfokusen. De wichtichste tapassingsfjilden binne as folget:

4.1.1 Plastic Packaging Industry:

Dit is it grutste tapassingsfjild fan filler masterbatch, goed foar mear as 50% fan it totale oanfraachbedrach. Filler masterbatch wurdt in protte brûkt yn 'e produksje fan plestik films, plestik sekken, woven bags, packaging belts, ferpakkingskonteners en oare ferpakkingsprodukten.

• Plastic films: Ynklusyf tinne plastic films, dikke films, stretch films, kas films, ensfh. De filler masterbatch dy't brûkt wurdt foar plestikfilms is foaral ljocht kalsiumkarbonaat filler masterbatch of barium sulfate filler masterbatch, dat fereasket goede dispersibility, high fineness and no impurities, to ensure that the blown film has no white spots, black spots or pinholes, en ûnderhâldt goede transparânsje, taaiens en treksterkte. It tafoegjen fan in passend bedrach fan filler masterbatch kin net allinich de produksjekosten fan 'e film ferminderje, but also improve the rigidity, waarmte ferset en dimensional stabiliteit fan de film, en ferminderje de krimp fan 'e film. Bygelyks, yn de produksje fan plestik boadskippen, tafoegjen 1%-3% fan CaCO3 filler masterbatch kin ferminderjen de kosten troch 5%-10% sûnder ynfloed op de taaiens en load-bearing kapasiteit fan de sekken.
• Plastic Bags: Ynklusyf boadskippen, vest bags, jiskefet sekken, iten ferpakking bags, ensfh. De filler masterbatch brûkt foar plestik tassen is benammen swiere kalsiumkarbonaat filler masterbatch, dat hat lege kosten en goede wear ferset. Taheakjen 2%-5% fan filler masterbatch kin ferminderje de kosten en ferbetterjen fan de rigidity en wear ferset fan 'e sekken. Foar jiskefet sekken, it tafoegjen fan in passend bedrach fan filler masterbatch kin ek ferbetterje de hurdens en tear ferset fan 'e sekken, wêrtroch't se net maklik te brekken.
• Woven Bags en Packaging Riemen: Woven sekken wurde in protte brûkt yn 'e ferpakking fan nôt, fertilizer, semint, gemyske produkten en oare guod; ferpakkingsriemen wurde brûkt foar it bondeljen fan guod. De filler masterbatch brûkt foar woven tassen en ferpakkingsriemen is benammen swiere kalsiumkarbonaat filler masterbatch as talk filler masterbatch, dy't hege rigidity en wear ferset fereasket. Taheakjen 5%-10% fan filler masterbatch kin de rigiditeit ferbetterje, tensile sterkte en wear ferset fan woven tassen en packaging riemen, ferminderje de kosten, en ferlingje de libbensdoer fan 'e produkten.
• Ferpakking Containers: Ynklusyf plestik flessen, plastic barrels, plestik doazen, ensfh. De filler masterbatch brûkt foar ferpakking fan konteners is benammen barium sulfate filler masterbatch as ljocht kalsium karbonaat filler masterbatch, dat fereasket goede transparânsje en gemyske stabiliteit. It tafoegjen fan in passende hoemannichte filler masterbatch kin de kosten ferminderje en de rigiditeit en ynfloedsterkte fan 'e konteners ferbetterje.

4.1.2 Plastic Construction Industry:

Filler masterbatch wurdt in soad brûkt yn de produksje fan plestik buizen, plestik profilen, plastic sheets, plestik tegels en oare bouprodukten.

• Plastic Pipes: Ynklusyf PVC pipen, PE pipes, PP pipes, ensfh., dy't brûkt wurde foar wetterfoarsjenning, ôfwettering, gas oerdracht, kabel beskerming en oare fjilden. De filler masterbatch brûkt foar plestik buizen is benammen kalsiumkarbonaat filler masterbatch of talk filler masterbatch, dat fereasket hege rigidity, heat resistance and pressure resistance. Taheakjen 5%-15% fan filler masterbatch kin de rigiditeit ferbetterje, heat distortion temperature and pressure resistance of the pipes, ferminderje de kosten, and prevent the pipes from deforming under high temperature and pressure.
• Plastic Profiles: Including PVC profiles for doors and windows, plastic decorative profiles, ensfh. The filler masterbatch used for plastic profiles is mainly calcium carbonate filler masterbatch, which requires good weather resistance and impact strength. Taheakjen 5%-10% fan filler masterbatch kin de rigiditeit ferbetterje, weather resistance and impact strength of the profiles, ferminderje de kosten, and ensure the service life of the profiles in outdoor environments.
• Plastic Sheets: Including PVC sheets, PE sheets, PP sheets, ensfh., which are used for indoor decoration, ferpakking, waterproofing and other fields. The filler masterbatch used for plastic sheets is mainly calcium carbonate filler masterbatch or barium sulfate filler masterbatch, dat fereasket goede flatness en toughness. Taheakjen 3%-8% fan filler masterbatch kin de kosten ferminderje en de rigiditeit en hurdens fan 'e blêden ferbetterje.

4.1.3 Plastic Molders Industry:

Filler masterbatch wurdt in protte brûkt yn 'e produksje fan ferskate ynjeksjefoarmprodukten, lykas plestik deistige needsaak, plestik boartersguod, plestik dielen, plestik skulpen ensafuorthinne.

• Plastic Daily Necessities: Ynklusyf plestik bakjes, plestik platen, plastic bekers, plastic baskets, plestik emmers en oare deistige needsaak. De filler masterbatch dy't brûkt wurdt foar dizze produkten is benammen kalsiumkarbonaat filler masterbatch, dat hat lege kosten en goede feiligens. Taheakjen 2%-5% fan filler masterbatch kin de kosten ferminderje en de rigiditeit en ynfloedsterkte fan 'e produkten ferbetterje, wêrtroch't se net maklik te brekken.
• Plastic Toys: Ynklusyf ferskate plestik boartersguod foar bern. 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 (boppe 1250 mesh) to avoid scratching children’s skin and ensure the smoothness of the toy surface. Taheakjen 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, ensfh. The filler masterbatch used for these products is mainly talc filler masterbatch or glass fiber reinforced filler masterbatch, dat fereasket hege rigidity, heat resistance and impact strength. Bygelyks, in the production of automotive interior parts (such as instrument panels, door panels), tafoegjen 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), tafoegjen 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:

Mei de trend fan lichtgewicht en enerzjybesparring yn 'e auto-yndustry, plestik materialen wurde in protte brûkt yn auto-fabryk, en filler masterbatch, as in wichtich funksjoneel additief, spilet in wichtige rol by it ferminderjen fan kosten en it ferbetterjen fan prestaasjes. De tapassing fan filler masterbatch yn 'e automotive plestik yndustry is benammen konsintrearre yn auto ynterieur dielen, eksterne dielen en funksjonele dielen.

• Automotive Interior Parts: Ynklusyf ynstrumint panielen, door panels, sitkussens, armleuningen, ensfh. Dizze dielen hawwe hege easken oan rigidity, waarmte ferset, lege geur en miljeubeskerming. Talk filler masterbatch en calcium carbonate filler masterbatch binne de meast brûkte produkten. Talc filler masterbatch kin gâns ferbetterje de rigidity en waarmte ferset fan polypropylene (PP) materialen, 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. Bygelyks, tafoegjen 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, fenders, door handles, ensfh. 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. Taheakjen 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, ensfh. 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. Bygelyks, tafoegjen 10%-15% of glass fiber reinforced filler masterbatch to the air intake pipe can improve the heat resistance and pressure resistance of the pipe, garandearje syn normale wurking ûnder hege temperatuer en hege druk; it tafoegjen fan barium sulfate filler masterbatch oan 'e batterijbehuizing kin de strielingsresistinsje en gemyske stabiliteit fan' e behuizing ferbetterje, it garandearjen fan de feiligens fan 'e batterij.

4.1.5 Elektroanyske en elektryske Plastic Industry:

Elektroanyske en elektryske produkten hawwe hege easken oan 'e flammefertraging, isolaasje, dimensional krektens en waarmte ferset fan plestik materialen. Filler masterbatch wurdt in protte brûkt yn 'e produksje fan plestik dielen fan elektroanyske en elektryske produkten, lykas tried en kabel sheaths, transformator casings, connector húsfesting, ensfh.

• Wire en kabel sheaths: De plestik mantels fan triedden en kabels moatte goede isolaasje hawwe, wear ferset, flammefertraging en waarresistinsje. De filler masterbatch brûkt foar draad- en kabelmantels is benammen kalsiumkarbonaat filler masterbatch of flammefertragende filler masterbatch. Taheakjen 3%-6% fan calcium carbonate filler masterbatch kin ferbetterje de wear ferset en rigidity fan 'e mantel, ferminderje de kosten; flame-retardant filler masterbatch (lykas magnesiumhydroxide, aluminiumhydroxide filler masterbatch) kin de flammefertraging fan 'e mantel ferbetterje, it foarkommen fan de fersprieding fan fjoer yn gefal fan koartsluting, garandearjen fan de feiligens fan it circuit.
• Transformatorbehuizingen en connectorbehuizingen: Dizze dielen moatte goede isolaasje hawwe, waarmte ferset en dimensional krektens. De brûkte filler-masterbatch is benammen talkfiller-masterbatch as glêstriedfersterke filler-masterbatch. Taheakjen 5%-8% fan talk filler masterbatch kin ferbetterje de waarmte ferset en dimensionale stabiliteit fan de dielen, 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, hurdens, weather resistance and anti-aging properties. The filler masterbatch used is mainly light calcium carbonate filler masterbatch or barium sulfate filler masterbatch. Taheakjen 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. Taheakjen 5%-10% of heavy calcium carbonate filler masterbatch can improve the pressure resistance and wear resistance of irrigation pipes, ferminderje de kosten; tafoegjen 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, jiskefet sekken), 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 (lykas auto-ûnderdielen, 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 (boppe 1250 mesh) 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 (lykas PE, PP, PVC). The specific steps are: earste, 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 (as it nedich is) to mix uniformly. De mingsnelheid is algemien 500-800 rpm, en it mingen tiid is 3-5 minuten. 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, high efficiency, 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. Dêrom, 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, druk, screw snelheid) 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. Bygelyks, 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 (extrusion pressure, injection pressure) needs to be appropriately increased by 10%-20%. Bygelyks, 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. Dêrom, the masterbatch should be stored in a dry, cool and ventilated warehouse, and should be dried before use (the drying temperature is 80-100℃, and the drying time is 2-4 oeren).
• Compatibility: The carrier resin of the filler masterbatch should be consistent with or compatible with the base plastic of the product. Bygelyks, 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, resulting in defects such as white spots, 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 (meastal 6-12 moannen). If the storage period is exceeded, the masterbatch may absorb moisture, agglomerate or the performance of additives may degrade, affecting the use effect. Dêrom, 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.

Solutions: 1) Select inorganic fillers with fine and uniform particle size (meastal 800-2000 mesh), 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 minuten), 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.

Solutions: 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.

Solutions:

• 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 (bygelyks, 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 (lykas dispersanten, lubricants) 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.

Solutions:

• 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: bubbels, 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.

Solutions:

• Extend the drying time of the filler (drying temperature 80-100℃, drying time 3-5 oeren), 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, cool and ventilated warehouse, 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.

Solutions:

• 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, talk) and long-term friction with the screw and barrel;
• The materials contain impurities (such as metals, stiennen), 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, barrel;
• The screw and barrel are made of materials with poor wear resistance.

Solutions:

• 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, barrel.

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.

Solutions:

• 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, ferbetterjen fan produktprestaasjes en optimalisearjen fan ferwurkingseffisjinsje. 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, hege filling bedrach, environmental protection and intelligence. Extrusion granulation technology, as the core technology of filler masterbatch production, 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 rige, HTS SUPER rige, ZTE series, HTE rige) according to the characteristics of filler masterbatch raw materials and processing requirements. Us extruders hawwe de foardielen fan hege wear ferset, strong shearing and mixing capacity, presys temperatuer kontrôle, wide application range, 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, soargje produkt kwaliteit, en krije in konkurrinsjefoardiel yn de fûle merk konkurrinsje.

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; oan de oare kant, 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. Tagelyk, 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.