Filler Masterbatch Advanced Granulation Produksielyne en Ekstrusietegnologie-toepassing

Met die vinnige ontwikkeling van die wêreldwye plastiekbedryf, die vraag na plastiekprodukte neem dag vir dag toe, en die vereistes vir produkprestasie, kostebeheer en omgewingsbeskerming word ook al hoe strenger. Vuller meesterbatch, as 'n sleutel funksionele bymiddel in plastiekverwerking, is wyd gebruik in verskeie velde van plastiekproduksie as gevolg van die voordele daarvan om produksiekoste te verminder, die verbetering van produkprestasie en die optimalisering van verwerkingsdoeltreffendheid. Ons is daartoe verbind om gevorderde granulasie-produksielyne en hoëprestasie-ekstruders vir verskillende soorte vuller-meesterbatch te verskaf, staatmaak op ryk ervaring in ekstrusie tegnologie navorsing en ontwikkeling en vervaardiging, gerig te verskaf, doeltreffende en betroubare verwerkingsoplossings vir vuller-meesterbatch-vervaardigers, ondernemings te help om produksiedoeltreffendheid te verbeter, produkkwaliteit te verseker, en kry 'n mededingende voordeel in die strawwe markkompetisie.

Hierdie artikel sal fokus op die veld van vuller meesterbatch, in-diepte uitbrei oor die basiese konsepte, klassifikasie, produksieproses van vuller meesterbatch, die kernrol van ekstrusietegnologie in sy granulasieproduksie, die voordele van ons ekstruderreeks en hul doelgerigte aanpassing by vuller-meesterbatch-verwerking, sowel as die spesifieke toepassingsvelde, gebruiksmetodes en algemene probleme en oplossings in produksie. Dit sal gedetailleerde tegniese parameters aanvul, verwerk besonderhede en pynpunte in die industrie om die inhoud te verryk, voldoen aan die woordtellingvereiste van 3000-4000 woorde, en verskaf omvattende en professionele verwysing vir relevante ondernemings en praktisyns in die vuller-meesterbatch-industrie.

1. Oorsig van Filler Masterbatch-industrie en produkkenmerke

1.1 Huidige situasie en ontwikkelingstendens van vuller-meesterbatch-industrie

In onlangse jare, aangedryf deur die vinnige ontwikkeling van stroomaf nywerhede soos verpakking, konstruksie, motor, elektronika en daaglikse benodigdhede, die wêreldwye vuller-meesterbatch-mark het 'n bestendige groeitendens getoon. Vuller meesterbatch is 'n soort saamgestelde materiaal wat gemaak word deur te meng, smelt, ekstrudeer en granuleer anorganiese vullers (soos kalsiumkarbonaat, talk, bariumsulfaat, ens.) met polimeer draers (soos poliëtileen, polipropileen, polivinielchloried, ens.) en toepaslike bymiddels (soos dispergeermiddels, versoenbaar maak, smeermiddels, ens.) in 'n sekere verhouding. Die kernfunksie daarvan is om die produksiekoste van plastiekprodukte te verminder, terwyl die basiese prestasie van plastiekprodukte verbeter of gehandhaaf word.

Volgens relevante datastatistieke, die wêreldwye vuller-meesterbatch-markgrootte het oorskry 20 miljard Amerikaanse dollars, en dit sal na verwagting 'n groeikoers van handhaaf 6%-9% in die volgende paar jaar. Onder hulle, kalsiumkarbonaat (CaCO3) vuller meesterbatch is die mees gebruikte produk tipe, verantwoordelik vir meer as 60% van die totale vuller-meesterbatch-mark, gevolg deur talkvuller meesterbatch, bariumsulfaat (BaSO4) vullermeesterbatch en ander spesiale vullermeesterbatch. Die Asië-Stille Oseaan-streek is die wêreld se grootste vuller-meesterbatch-produksie- en verbruiksmark, verantwoordelik vir meer as 50% van die globale markaandeel, wat hoofsaaklik te wyte is aan die vinnige ontwikkeling van die plastiekverwerkingsbedryf in China, Indië en ander lande, die groot vraag na kostevermindering en prestasieverbetering van plastiekprodukte, en die voortdurende verbetering van industriële ondersteuningskapasiteit.

Die ontwikkelingstendens van die vuller-meesterbatch-industrie word hoofsaaklik in vier aspekte weerspieël: eers, hoë werkverrigting en funksionalisering. Met die opgradering van stroomafwaartse plastiekprodukvereistes, vuller meesterbatch is nie meer beperk tot kostevermindering nie, maar ontwikkel geleidelik na funksionalisering, soos die verbetering van die rigiditeit, taaiheid, hitte weerstand, weerbestandheid en versperringseienskappe van plastiekprodukte, en die ontwikkeling van spesiale funksionele vuller-meesterbatches soos vlamvertrager, antistaties en antibakteries; tweede, hoë vulhoeveelheid en goeie dispergeerbaarheid. Onder die uitgangspunt om produkprestasie te verseker, die verhoging van die vulhoeveelheid van anorganiese vullers kan produksiekoste verder verlaag, wat hoër vereistes stel aan die dispergeerbaarheid van vullermeesterbatch—uitstekende dispergeerbaarheid kan verseker dat die vulstof eweredig in die plastiekmatriks versprei word, vermy die voorkoms van wit kolle, swart kolle of agglomerasie in die finale produk; derde, omgewingsbeskerming en lae besoedeling. Met die versterking van globale omgewingsbeskermingsbeleide en die verbetering van omgewingsbeskermingsbewustheid, vuller-meesterbatch-vervaardigers neem geleidelik omgewingsvriendelike bymiddels en produksieprosesse aan, die vermindering van die vrystelling van skadelike stowwe, en die ontwikkeling van afbreekbare vuller-meesterbatch om aan te pas by die ontwikkelingstendens van groen plastiek; vierde, intelligensie en doeltreffendheid van produksietoerusting. Ten einde die grootskaalse te ontmoet, deurlopende en hoë kwaliteit produksiebehoeftes van vullermeesterbatch, vervaardigers stel voortdurend gevorderde granulasie-produksielyne en intelligente beheerstelsels bekend, produksiedoeltreffendheid te verbeter, die vermindering van arbeidskoste en die versekering van produkkwaliteitstabiliteit.

Teen hierdie agtergrond, ekstrusie granulasie tegnologie, as die kerntegnologie van vuller-meesterbatch-produksie, het die sleutel geword tot die bepaling van die kwaliteit van vuller-meesterbatch en die mededingendheid van ondernemings. Die werkverrigting van ekstrueerders beïnvloed die dispergeerbaarheid direk, deeltjie vorm, smeltindeks en ander sleutelaanwysers van vullermeesterbatch. Ons professionele ekstrueerders en granulasie produksielyne vir vuller meesterbatch word ontwikkel in reaksie op die kenmerke van die industrie en markvraag, wat die pynpunte in vuller-meesterbatchverwerking effektief kan oplos (soos swak verspreibaarheid, ongelyke deeltjiegrootte, lae vulhoeveelheid, hoë energieverbruik, ens.) en help ondernemings om hoë gehalte en doeltreffende produksie te bereik.

1.2 Klassifikasie van vullermeesterbatch en sy kernkenmerke

Vullermeesterbatch kan in verskillende tipes verdeel word volgens die tipe vuller, draerhars, aansoekveld en vulhoeveelheid. Elke tipe vuller-meesterbatch het sy eie unieke eienskappe en toepaslike scenario's. Die volgende is 'n gedetailleerde inleiding tot die algemene klassifikasie en kernkenmerke van vullermeesterbatch:

1.2.1 Klassifikasie volgens tipe vulsel:

Dit is die mees algemene klassifikasiemetode vir vuller-meesterbatch. Volgens die tipe anorganiese vuller, dit kan hoofsaaklik in kalsiumkarbonaat verdeel word (CaCO3) vuller meesterbatch, talkvuller meesterbatch, bariumsulfaat (BaSO4) vuller meesterbatch, en ander spesiale vuller-meesterbatches (soos kaolienvuller meesterbatch, koolstofswart vuller meesterbatch, glasveselvuller meesterbatch, ens.).

• Kalsiumkarbonaat (CaCO3) Vuller Masterbatch: Dit is die mees gebruikte vuller-meesterbatch met die laagste koste. Die vuller is hoofsaaklik ligte kalsiumkarbonaat of swaar kalsiumkarbonaat. Ligte kalsiumkarbonaat het 'n fyn deeltjiegrootte, goeie dispergeerbaarheid en hoë witheid, wat geskik is vir plastiekprodukte met hoë vereistes ten opsigte van voorkoms en fynheid (soos plastiekfilms, spuitgietprodukte); swaar kalsiumkarbonaat het 'n hoë hardheid, goeie slytasieweerstand en lae prys, wat geskik is vir plastiekprodukte met hoë vereistes vir rigiditeit en kostebeheer (soos geweefde sakke, verpakkingsbande, pype, ens.). Kalsiumkarbonaatvuller-meesterbatch kan nie net produksiekoste verminder nie, maar verbeter ook die styfheid, hittebestandheid en dimensionele stabiliteit van plastiekprodukte, en het 'n sekere smeer effek, wat die verwerkingsvloeibaarheid van plastiek kan verbeter.
• Talc Filler Masterbatch: Die vuller is talkpoeier met gelaagde struktuur. Talkpoeier het goeie meganiese eienskappe, hittebestandheid en chemiese stabiliteit. Talkvuller-meesterbatch word hoofsaaklik in polipropileen gebruik (PP) plastiek produkte, wat die rigiditeit aansienlik kan verbeter, hittevervormingstemperatuur en impaksterkte van PP-produkte, en word wyd gebruik in motoronderdele, doppe vir huishoudelike toestelle, plastiekpype en ander velde wat hoë werkverrigting vereis.
• Bariumsulfaat (BaSO4) Vuller Masterbatch: Die vuller is bariumsulfaatpoeier, wat hoë witheid het, goeie deursigtigheid, chemiese traagheid en stralingsweerstand. Bariumsulfaatvuller-meesterbatch is geskik vir plastiekprodukte met hoë vereistes vir deursigtigheid, witheid en chemiese stabiliteit (soos plastiekfilms, plastiekbottels, mediese plastiek produkte, ens.), en kan ook in stralingsvaste plastiekprodukte gebruik word (soos mediese beskermende toerusting, kernkragsentrale bykomstighede, ens.).

1.2.2 Klassifikasie deur Carrier Resin:

Volgens die tipe draerhars wat gebruik word, vuller meesterbatch kan verdeel word in poliëtileen (PE) vuller meesterbatch, polipropileen (PP) vuller meesterbatch, polivinielchloried (PVC) vuller meesterbatch, poliëtileentereftalaat (PET) vuller meesterbatch, ens. Die keuse van drahars word hoofsaaklik bepaal deur die tipe stroomafwaartse plastiekprodukte. Byvoorbeeld, PE vuller meesterbatch is geskik vir PE plastiek produkte (soos plastiekfilms, sakke, pype); PP vuller meesterbatch is geskik vir PP plastiek produkte (soos geweefde sakke, spuitgietonderdele, motoronderdele); PVC-vuller-meesterbatch is geskik vir PVC-plastiekprodukte (soos PVC-pype, profiele, velle).

1.2.3 Klassifikasie volgens toepassingsveld:

Volgens die toepassingsveld van stroomaf plastiekprodukte, vuller meesterbatch kan verdeel word in film-graad vuller masterbatch, inspuitingsgraad vuller meesterbatch, ekstrusie-graad vuller meesterbatch, blaasvorm-graad vuller meesterbatch, ens. Film-graad vuller meesterbatch vereis goeie verspreibaarheid, hoë fynheid en geen onsuiwerhede nie, om te verseker dat die geblaasde film geen wit kolle het nie, swart kolle of speldegate, en handhaaf goeie deursigtigheid en taaiheid; inspuitingsgraad-vuller-meesterbatch vereis goeie vloeibaarheid en eenvormige deeltjiegrootte, om by die vinnige spuitgietproses aan te pas en die voorkoms en dimensionele akkuraatheid van spuitprodukte te verseker; ekstrusie-graad vuller meesterbatch vereis goeie termiese stabiliteit en meganiese eienskappe, om aan te pas by die hoë-temperatuur- en hoëdruk-ekstrusieproses van pype, profiele en ander produkte.

1.2.4 Klassifikasie volgens Vulbedrag:

Volgens die vulhoeveelheid van anorganiese vullers, vuller meesterbatch kan verdeel word in lae-vul masterbatch (vul hoeveelheid 30%-50%), medium-vul meesterbatch (vul hoeveelheid 50%-70%) en hoogvullende meesterbatch (vul hoeveelheid 70% en bo). Die vulhoeveelheid word bepaal volgens die prestasievereistes van stroomaf produkte en die verwerkingskapasiteit van toerusting. Hoë-vul meesterbatch het 'n duideliker kosteverminderingseffek, maar dit het hoër vereistes vir die verspreibaarheid van vullers en die werkverrigting van ekstrueerders—slegs hoëprestasie-ekstruders kan die eenvormige vermenging en smelting van hoëvulmateriaal verseker, vermy agglomerasie en swak verwerkingsvloeibaarheid.

Dit is opmerklik dat die kernprestasie-aanwysers van vuller-meesterbatch hoofsaaklik verspreibaarheid insluit, deeltjiegrootte eenvormigheid, smeltindeks, witheid (vir ligkleurige produkte) en verenigbaarheid met draerhars. Onder hulle, dispergeerbaarheid is die mees kritieke aanwyser—swak dispergeerbaarheid sal lei tot oneweredige verspreiding van vullers in plastiekprodukte, wat lei tot defekte soos wit kolle, swart kolle, agglomerasie en bros produkte, wat die voorkoms en prestasie van plastiekprodukte ernstig beïnvloed. Daarom, die keuse van gevorderde ekstrusietoerusting en wetenskaplike verwerkingstegnologie is van kardinale belang om die verspreibaarheid en algehele kwaliteit van vullermeesterbatch te verseker.

2. Kerntegnologie van Filler Masterbatch-produksie: Ekstrusie Granulasie Tegnologie

Ekstrusiegranulasietegnologie is die kerntegnologie van vuller-meesterbatch-produksie, wat vermenging integreer, smelt, skeer, dispersie en granulering. Dit het die voordele van hoë produksiedoeltreffendheid, goeie kwaliteit van die produk, sterk aanpasbaarheid by grondstowwe en wye toepassingsreeks. In die vervaardiging van vuller meesterbatch, ekstrusie granulasie tegnologie word hoofsaaklik gebruik om die eenvormige verspreiding van anorganiese vullers in die polimeer draer te verwesenlik, smelt en maak die mengsel plastiek, en dan ekstrudeer en granuleer om korrelvuller-meesterbatch met eenvormige grootte te vorm, goeie vloeibaarheid en stabiele werkverrigting. Die kwaliteit van ekstrusiegranulasie bepaal direk die sleutelprestasie-aanwysers van vullermeesterbatch, soos verspreibaarheid, deeltjiegrootte en smeltindeks.

2.1 Eienskappe van vuller-meesterbatch-grondstowwe en vereistes vir ekstrusietoerusting

Die grondstowwe van vuller-meesterbatch bevat hoofsaaklik drie dele: anorganiese vullers (soos CaCO3, talk, BaSO4), polimeer draers (soos PE, PP, PVC) en bymiddels (soos dispergeermiddels, versoenbaar maak, smeermiddels, antioksidante, ens.). Die eienskappe van hierdie grondstowwe verskil heelwat, wat spesiale vereistes vir ekstrusietoerusting stel:

Eerstens, die anorganiese vullers het 'n hoë hardheid, swak verenigbaarheid met polimeer draers, en is maklik om te agglomereer. Mees anorganiese vullers (soos CaCO3, talk) hidrofiel is, terwyl polimeerdraers hidrofobies is, wat lei tot swak verenigbaarheid tussen vullers en draers. As die vermenging en skeer onvoldoende is, die vullers sal agglomereer, wat nie eenvormig in die draer versprei kan word nie, wat lei tot swak gehalte van vuller meesterbatch. Daarby, die hoë hardheid van anorganiese vullers sal ernstige slytasie aan die skroef en vat van die ekstruder veroorsaak tydens die ekstrusieproses, wat vereis dat die skroef en loop van die ekstruder uiters hoë slytasieweerstand moet hê.

Tweedens, die mengsel van vuller meesterbatch het 'n hoë viskositeit en swak vloeibaarheid. Die byvoeging van 'n groot aantal anorganiese vullers sal die viskositeit van die mengsel aansienlik verhoog, verminder die verwerkingsvloeibaarheid, en vereis dat die ekstruder sterk vervoervermoë en skuifkrag het om die gladde vordering van smelt te verseker, vermenging en ekstrusie.

Derde, die verwerkingstemperatuurreeks is smal. Verskillende draerharse het verskillende smeltpunte en termiese stabiliteit. Byvoorbeeld, die smeltpunt van PE is 100-130 ℃, die smeltpunt van PP is 160-170 ℃, en PVC is maklik om te ontbind by hoë temperature (bo 160 ℃). Daarom, die ekstrusietoerusting moet presiese temperatuurbeheerkapasiteit hê om te verseker dat die mengsel ten volle gesmelt is sonder termiese ontbinding, en om die ontbinding van bymiddels en die agteruitgang van produkprestasie te vermy.

Gebaseer op die bogenoemde eienskappe, enkelskroef-ekstruders is nie geskik vir grootskaalse en hoë kwaliteit produksie van vuller-meesterbatch nie. Omdat die enkelskroef-ekstruder 'n smal skuifreeks het, swak pompvermoë en geen selfreinigende effek nie. Wanneer hoë-viskositeit en hoë-vulstofmengsels verwerk word, dit is maklik om materiaalophoping te veroorsaak, blokkasie en ongelyke vermenging in die ekstrudervat, wat lei tot swak verspreibaarheid van vuller meesterbatch, ongelyke deeltjiegrootte en onstabiele produkkwaliteit. Daarby, die enkelskroef-ekstruder het hoë energieverbruik wanneer hoëvulmateriaal verwerk word, en die skroef en loop is erg verslete, wat die produksiekoste en toerustingonderhoudskoste van ondernemings verhoog.

Dubbelskroef-ekstruders, aan die ander kant, het ooglopende voordele in vuller meesterbatch produksie en het die hoofstroom toerusting geword vir vuller masterbatch ekstrusie granulasie. Dubbelskroef-ekstruders het 'n wyer skuifreeks, meer effektiewe pompeffek en selfreinigende effek, wat die probleme van swak verenigbaarheid effektief kan oplos, maklike agglomerasie en swak vloeibaarheid van vuller meesterbatch grondstowwe. Die ineenskakeling en rotasie van die tweelingskroewe kan sterk skuifkrag en kniekrag genereer, wat die agglomerate van anorganiese vullers ten volle kan breek, maak die vullers eenvormig versprei in die polimeer draer, en verseker die dispergeerbaarheid en stabiliteit van die produk. Daarby, die dubbelskroef-ekstruder het goeie temperatuurbeheerakkuraatheid, sterk aanpasbaarheid by grondstowwe, en kan aanpas by die verwerking van verskillende tipes, verskillende vulhoeveelhede vullermeesterbatch, en het hoë produksiedoeltreffendheid en lae energieverbruik.

2.2 Werksbeginsel van vuller Masterbatch Ekstrusiegranulasie

Die ekstrusiegranuleringsproses van vullermeesterbatch is 'n komplekse fisiese en chemiese proses, wat die interaksie van veelvuldige faktore soos temperatuur behels, druk, skuifkrag en tyd. Die spesifieke werkbeginsel en prosesvloei is soos volg:

Eerstens, rou materiaal voorbehandeling. Die grondstowwe van vuller meesterbatch (anorganiese vullers, draerhars, bymiddels) moet vooraf behandel word om die kwaliteit van die finale produk te verseker. Die spesifieke stappe sluit in: 1) Droog behandeling: Anorganiese vullers (soos CaCO3, talk) is gewoonlik hidrofiel en bevat 'n sekere hoeveelheid vog. As die voginhoud te hoog is, dit sal die mengeffek en dispergeerbaarheid van die materiale beïnvloed, en veroorsaak selfs borrels in die geëxtrudeerde meesterbatch. Daarom, die vullers moet in 'n droër gedroog word (soos 'n warmlugdroër, 'n vakuumdroër) om die voginhoud tot onder te verminder 0.5%. 2) Kneus en sif: Die draerhars (soos PE, PP) word fyngemaak in klein deeltjies of poeier met 'n deeltjiegrootte van 20-40 gaas, wat bevorderlik is vir eenvormige vermenging met vullers en bymiddels. Anorganiese vullers word ook gesif om onsuiwerhede en groot deeltjies te verwyder, verseker die fynheid en eenvormigheid van vullers. 3) Voorvermenging: Volgens die formule verhouding, die gedroogde vullers, draerharspartikels en bymiddels (dispergeermiddels, versoenbaar maak, smeermiddels, ens.) word in 'n hoëspoedmenger gesit vir voorafmenging. Die mengspoed is oor die algemeen 800-1200 rpm, en die mengtyd is 5-10 minute. Die doel van voorafmenging is om die bymiddels eweredig aan die oppervlak van vullers en draerhars te laat kleef, verbeter die verenigbaarheid tussen vullers en draer, en lê 'n fondament vir daaropvolgende ekstrusievermenging. Die dispergeermiddel is 'n sleutel bymiddel in voorafmenging, wat 'n beskermende film op die oppervlak van die vuller kan vorm, verminder die oppervlak-energie van die vuller, voorkom dat die vuller saamklonter, en verbeter die dispergeerbaarheid van die vulstof in die draerhars.

Tweedens, voeding en vervoer. Die voorafgemengde mengsel word deur 'n skroefvoerder of 'n bandtoevoerder na die voerbak van die dubbelskroef-ekstruder gestuur. Die voerspoed moet eenvormig en stabiel wees, wat ooreenstem met die skroefspoed en ekstrusiespoed van die ekstruder, om te verseker dat die materiaal die ekstrusieholte stabiel binnedring en materiaalophoping of onvoldoende voeding vermy. Die toevoertoestel van die ekstruder is gewoonlik toegerus met 'n frekwensie-omskakelingspoedreguleringsfunksie, wat die voerspoed kan aanpas volgens die werklike produksiesituasie.

Derde, smelt, meng en skeer. Die materiaal wat die ekstrusieholte van die dubbelskroef-ekstruder binnegaan, word voortdurend deur die roterende skroewe vorentoe gedruk. Die ekstrusieholte bestaan ​​uit 'n skroef en 'n loop, en die volume van die ekstrusieholte neem geleidelik langs die asrigting af. Wanneer die skroewe draai, die materiaal word geleidelik saamgepers onder die werking van die skroewe en die loop, en die druk in die ekstrusieholte neem geleidelik toe (oor die algemeen 3-15MPa). Terselfdertyd, die materiaal word aan sterk skuifkrag en wrywingskrag onderwerp wat deur die relatiewe beweging tussen die skroewe en die loop gegenereer word, asook tussen die skroefvlugte.

Die skuifkrag en wrywingskrag kan die agglomerate van anorganiese vullers ten volle breek, maak die vullers eenvormig versprei in die gesmelte draerhars, en bevorder die samesmelting en verenigbaarheid tussen die vullers en die draer. Die wrywingskrag kan ook 'n sekere hoeveelheid hitte genereer, wat gekombineer word met die eksterne verhitting van die loop (elektriese verwarming of stoom verwarming) om die draerhars geleidelik te laat smelt en plastiseer. Die loop van die ekstruder word gewoonlik verdeel in 3-6 temperatuurbeheerafdelings (voeding afdeling, smeltafdeling, mengafdeling, homogeniserende afdeling, ens.), en die temperatuur van elke afdeling word presies beheer volgens die tipe drahars en vuller. Byvoorbeeld, wanneer PE-draervuller-meesterbatch verwerk word, die temperatuur van die voerafdeling is 80-100 ℃, die smeltgedeelte is 120-140 ℃, die menggedeelte is 140-150 ℃, en die homogeniseringsgedeelte is 130-140 ℃; wanneer PP-draervuller-meesterbatch verwerk word, die temperatuur van elke afdeling is 20-30 ℃ hoër as dié van PE-draer.

Vierde, ekstrusie en vorming. Die ten volle gesmelt, gemengde en verspreide materiaal word deur die skroewe na die matryskop van die ekstruder gedruk. Die matryskop is toegerus met veelvuldige matrijsgate (die aantal en grootte van die gate word bepaal volgens die deeltjiegrootte van die meesterbatch), en die materiaal word teen 'n hoë spoed uit die matrysgate geëxtrudeer om aaneenlopende stroke van eenvormige dikte te vorm. Die temperatuur van die matryskop is effens laer as dié van die homogeniserende gedeelte, wat kan verhoed dat die materiaal ontbind as gevolg van oormatige temperatuur en die vormeffek van die stroke verseker.

Vyfde, afkoel en sny. Die geëxtrudeerde stroke word na 'n verkoelingstoestel gestuur (soos 'n watertenk, 'n lugverkoelde vervoerband) vir vinnige afkoeling. Die verkoelingstemperatuur is gewoonlik 20-30 ℃, en die afkoeltyd is 2-5 minute. Vinnige afkoeling kan die stroke vinnig laat stol, handhaaf die vorm en grootte van die stroke, en vermy vervorming. Na afkoeling, die stroke word na 'n granuleerder gestuur om te sny. Die granuleerder is toegerus met 'n roterende mes, wat die stroke in korrelvuller-meesterbatch met eenvormige grootte kan sny (die deeltjiegrootte is oor die algemeen 2-5 mm, wat aangepas kan word volgens klantbehoeftes). Die spoed van die roterende mes word ooreenstem met die vervoerspoed van die stroke om te verseker dat die deeltjiegrootte van die masterbatch eenvormig is.

Sesde, sifting en verpakking. The cut granular filler masterbatch is sent to a vibrating screen for screening, which can remove unqualified particles (such as too large, too small or agglomerated particles) and ensure the uniformity of the product. Die gekwalifiseerde meesterbatch word dan na 'n outomatiese verpakkingsmasjien gestuur vir verpakking. Die verpakkingspesifikasies kan aangepas word volgens klantbehoeftes (soos 25 kg/sak, 50kg/sak), en die verpakking moet verseël en vogbestand wees om te verhoed dat die meesterbatch vog absorbeer en die kwaliteit beïnvloed. Na verpakking, die produkte word in 'n droë gestoor, koel en geventileerde pakhuis.

2.3 Sleutelfaktore wat vuller Masterbatch Ekstrusie Granulasie effek beïnvloed

Die effek van ekstrusiegranulering beïnvloed direk die kwaliteit van vullermeesterbatch. Daar is baie faktore wat die granulasie-effek beïnvloed, hoofsaaklik grondstofeienskappe ingesluit, formule verhouding, voorafmeng effek, ekstrusie parameters en die kop struktuur. 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. Byvoorbeeld, the particle size of inorganic fillers directly affects the dispersibility and fineness of the masterbatch. The finer the particle size of the filler (oor die algemeen 800-2000 gaas), 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, maar die verspreibaarheid is swak, wat die voorkoms en prestasie van die masterbatch sal beïnvloed. Die voginhoud van grondstowwe (veral vullers) moet hieronder beheer word 0.5%; as die voginhoud te hoog is, dit sal borrels in die masterbatch veroorsaak, beïnvloed die digtheid en meganiese eienskappe van die produk. Die suiwerheid van grondstowwe is ook baie belangrik; onsuiwerhede in grondstowwe (soos klippe, metale, stof) sal nie net die kwaliteit van die masterbatch beïnvloed nie, maar dra ook die skroef en loop van die ekstruder, en selfs toerusting verstopping veroorsaak.

2.3.2 Formule verhouding:

Die formule verhouding van vuller meesterbatch (die verhouding van vulstof, draerhars en bymiddels) is die sleutel tot die bepaling van die prestasie en koste van die produk. Die vulhoeveelheid van die vuller moet bepaal word volgens die prestasievereistes van die stroomaf-produk en die verwerkingskapasiteit van die toerusting. Te hoë vulhoeveelheid sal lei tot swak dispergeerbaarheid, lae taaiheid en swak verwerkingsvloeibaarheid van die meesterbatch; te lae vulhoeveelheid sal die kosteverminderingseffek verminder. Die tipe en dosis bymiddels moet ook redelik ooreenstem. Byvoorbeeld, die dispergeermiddel dosis is oor die algemeen 1%-3% van die vulstof dosis; te min dispergeermiddel sal lei tot swak dispergeerbaarheid van die vuller, en te veel dispergeermiddel sal die verenigbaarheid tussen die meesterbatch en die stroomafwaartse plastiekprodukte beïnvloed, en verminder die meganiese eienskappe van die produkte. Die verenigbaarheidsmiddel word gebruik om die verenigbaarheid tussen die vuller en die draerhars te verbeter; die dosis is oor die algemeen 0.5%-2%, wat die verspreibaarheid en meganiese eienskappe van die masterbatch aansienlik kan verbeter. Die smeermiddel word gebruik om die wrywing tussen die materiale en die skroef te verminder, vat en sterf kop, verbeter die verwerkingsvloeibaarheid, en voorkom dat die materiaal aan die toerusting kleef; die dosis is oor die algemeen 0.3%-1%.

2.3.3 Voormeng effek:

Voorvermenging is die grondslag van ekstrusiegranulering. Die eenvormigheid van voorafmenging beïnvloed direk die dispergeerbaarheid van die vulstof in die draerhars. As die voormenging ongelyk is, die bymiddels kan nie eenvormig aan die oppervlak van die vuller en draer gekleef word nie, wat lei tot plaaslike agglomerasie van die vuller, ongelyke vermenging van die materiale tydens ekstrusie, en swak gehalte van die masterbatch. Om die voorafmeng effek te verseker, dit is nodig om die mengspoed te beheer, mengtyd en mengtemperatuur. Die mengspoed is oor die algemeen 800-1200 rpm, die mengtyd is 5-10 minute, en die mengtemperatuur word op 40-60 ℃ beheer (toepaslike temperatuur kan die adhesie van bymiddels verbeter en eenvormige vermenging bevorder).

2.3.4 Ekstrusie parameters:

Ekstrusieparameters is die belangrikste faktore wat die granulasie-effek beïnvloed, hoofsaaklik skroefspoed ingesluit, ekstrusie temperatuur en ekstrusie druk.

• Skroef spoed: Die skroefspoed wissel gewoonlik van 150 aan 600 rpm. Hoe hoër die skroefspoed, hoe groter die skuifkrag en wrywingskrag wat deur die materiale ontvang word, hoe beter is die meng- en dispergeer-effek van die vuller, en hoe hoër die produksiedoeltreffendheid. Egter, as die skroefspoed te hoog is, die verblyftyd van die materiaal in die ekstrusieholte is te kort, wat lei tot onvolledige smelting van die draerhars, onvoldoende vermenging van die materiale, en ongelyke deeltjiegrootte van die masterbatch; as die skroefspoed te laag is, die skuifkrag en wrywingskrag is onvoldoende, die vuller kan nie heeltemal versprei word nie, en die produksiedoeltreffendheid is laag. Die skroefspoed moet aangepas word volgens die vulhoeveelheid en tipe vullermeesterbatch—vir hoëvulmeesterbatch, 'n hoër skroefspoed is nodig om voldoende skeer en vermenging te verseker.
• Ekstrusie temperatuur: Die ekstrusietemperatuur word in verskeie afdelings verdeel (voeding afdeling, smeltafdeling, mengafdeling, homogeniserende afdeling, die kopgedeelte), en die temperatuur van elke afdeling moet presies beheer word volgens die tipe drahars en vuller. Die temperatuur van die voerafdeling is laer (effens hoër as die smeltpunt van die draerhars), wat hoofsaaklik is om te verhoed dat die materiaal koek en gladde voeding verseker; die temperatuur van die smeltgedeelte is medium, wat hoofsaaklik is om die smelt en plastisering van die draerhars te bevorder; die temperatuur van die menggedeelte is hoër, wat hoofsaaklik is om die skuif- en mengeffek te verbeter, en bevorder die eenvormige verspreiding van die vuller; die temperatuur van die homogeniserende gedeelte is effens laer as die menggedeelte, wat hoofsaaklik is om die eenvormige temperatuur en viskositeit van die materiale te verseker, en vermy termiese ontbinding; die temperatuur van die matryskopgedeelte is effens laer as die homogeniserende gedeelte, wat die vormeffek van die stroke moet verseker.
• Ekstrusie druk: Die ekstrusiedruk is oor die algemeen 3-15MPa. Die druk in die ekstrusieholte word hoofsaaklik deur die kompressieverhouding van die skroef bepaal, die matrysgatgrootte en die skroefspoed. Hoe hoër die ekstrusiedruk, hoe beter die meng- en dispergeer-effek van die materiale, en hoe digter die masterbatch-deeltjies. Egter, as die druk te hoog is, dit sal die energieverbruik en slytasie van die toerusting verhoog, en selfs die dobbelsteenkop laat blokkeer; as die druk te laag is, die materiale kan nie ten volle saamgepers en gemeng word nie, die masterbatch-deeltjies is los, en die prestasie is onstabiel.

2.3.5 Die Hoofstruktuur:

Die matryskopstruktuur sluit hoofsaaklik die nommer in, vorm en grootte van die gate. Die vorm van die matrysgat bepaal die deursneevorm van die geëxtrudeerde stroke (soos omsendbrief, vierkantig), en die grootte van die matrysgat bepaal die aanvanklike deursnee van die stroke en die finale deeltjiegrootte van die masterbatch. Hoe kleiner die matrysgatgrootte, hoe groter die ekstrusiedruk, hoe beter die meng- en dispergeer-effek, maar die produksievermoë sal verminder word; hoe groter die matrysgatgrootte, hoe laer die ekstrusiedruk, hoe laer die produksiedoeltreffendheid, maar die deeltjiegrootte van die masterbatch is groter. Die aantal matrijsgate beïnvloed die produksiekapasiteit; hoe meer die aantal gate, hoe hoër die produksievermoë, maar dit is nodig om te verseker dat die drukverspreiding eenvormig is, om ongelyke dikte van die stroke en ongelyke deeltjiegrootte van die masterbatch te vermy.

3. Ons Extruders: Voordele en produkreekse vir vuller-meesterbatch-produksie

Ons is lankal besig met die navorsing, ontwikkeling en vervaardiging van hoëprestasie-ekstruders en granulasie-produksielyne, en het ryk ervaring opgedoen op die gebied van vuller-meesterbatch-verwerking. Volgens die eienskappe van vuller meesterbatch grondstowwe (hoë hardheid, swak verenigbaarheid, hoë viskositeit) en verwerkingsvereistes (goeie verspreibaarheid, eenvormige deeltjiegrootte, hoë vulhoeveelheid), ons het 'n reeks dubbelskroef-ekstruders ontwikkel wat spesiaal geskik is vir vuller-meesterbatch-produksie. Ons ekstrueerders het die voordele van hoë slytasieweerstand, sterk skuifkrag, presiese temperatuurbeheer, stabiele werkverrigting en lae bedryfskoste, wat aan die verwerkingsbehoeftes van verskeie tipes kan voldoen, verskillende vulhoeveelhede vullermeesterbatch (CaCO3, talk, BaSO4, ens.), en help ondernemings om produksiedoeltreffendheid te verbeter, produkkwaliteit te verseker en produksiekoste te verminder.

3.1 Main Advantages of Our Extruders for Filler Masterbatch Production

3.1.1 High Wear Resistance, Long Service Life:

Aiming at the problem that inorganic fillers (soos CaCO3, talk) have high hardness and easy to wear the screw and barrel, we adopt high-quality wear-resistant materials and advanced manufacturing technology to ensure the wear resistance of the core components of the extruder. The screw and barrel are made of imported wear-resistant alloy steel (such as 38CrMoAlA), and after nitriding treatment or bimetallic composite treatment, the surface hardness can reach ≥65 HRC, which has extremely strong wear resistance and corrosion resistance, and can effectively resist the wear caused by the friction between the high-hardness filler and the components. This greatly extends the service life of the screw and barrel, reduces the frequency of component replacement, and reduces the maintenance cost of the equipment. Daarby, we also provide professional wear detection services for the screw and barrel. Our technical team will regularly detect the wear degree of the screw and barrel for customers, issue a detailed wear report, and put forward targeted replacement and maintenance suggestions, verseker dat kliënte slegs komponente vervang wanneer nodig, onnodige vermorsing te vermy.

3.1.2 Sterk skeer- en mengvermoë, Uitstekende verspreibaarheid:

Die sleutel tot vuller-meesterbatch-produksie is om die eenvormige verspreiding van vullers te verseker. Ons dubbelskroef-ekstruders neem 'n ineenlopende mede-roterende dubbelskroefstruktuur aan, met 'n redelike skroefspoed, lood en kompressieverhouding ontwerp. Die ineenskakeling en rotasie van die tweelingskroewe kan sterk skuifkrag en kniekrag genereer, wat die agglomerate van anorganiese vullers ten volle kan breek, maak die vullers eenvormig versprei in die gesmelte draerhars, en verseker die verspreibaarheid van die meesterbatch. Die skroef is ontwerp met 'n modulêre struktuur, en verskillende skroefelemente (soos om elemente oor te dra, vermenging van elemente, skeer elemente) kan vrylik gekombineer word volgens die tipe en vulhoeveelheid van vullermeesterbatch, om die skuifkrag en mengeffek aan te pas, en bereik die beste verwerkingseffek. Byvoorbeeld, wanneer hoogvullende CaCO3-meesterbatch verwerk word, 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, Stable Performance:

Our extruders adopt advanced intelligent temperature control systems, which can realize precise control of the temperature of each section of the barrel and the die head. 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. The temperature control system is equipped with a real-time monitoring and alarm function. If the temperature of any section exceeds the set range, the system will issue an alarm prompt in time, and even automatically adjust the heating power or shut down the equipment if necessary, to avoid equipment failure and product quality problems. Daarby, 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 Wye toepassingsreeks, Strong Flexibility:

Our extruder series can adapt to the processing needs of various types of filler masterbatch, including CaCO3 filler masterbatch, talkvuller meesterbatch, BaSO4 filler masterbatch, en ander spesiale vuller-meesterbatches. The filling amount can be adjusted from 30% aan 80%, wat aan die verskillende koste- en prestasievereistes van kliënte kan voldoen. Die modulêre ontwerp van die ekstruder (skroef, vat, kop dood, ens.) maak die vervanging van komponente geriefliker en vinniger. Wanneer kliënte die produktipe of vulhoeveelheid moet aanpas, hulle hoef net die ooreenstemmende komponente te vervang, sonder om die hele toerusting te vervang, wat die koste van toerustingtransformasie verminder en die buigsaamheid en aanpasbaarheid van die toerusting verbeter. Daarby, ons ekstrueerders kan ook met verskillende hulptoerusting gepas word (soos hoëspoedmengers, droërs, koelers, granuleerders, siftingsmasjiene, verpakking masjiene) om 'n volledige outomatiese granulasie-produksielyn te vorm, deurlopende produksie van grondstofvoorbehandeling tot produkverpakking te realiseer.

3.1.5 Hoë produksie doeltreffendheid, Lae energieverbruik:

Ons dubbelskroef-ekstruders het hoë produksiedoeltreffendheid, wat baie hoër is as dié van enkelskroef-ekstruders. Die produksievermoë van ons ekstrueerders wissel van 100kg/h tot 3000kg/h, wat aan die produksiebehoeftes van verskillende skale van ondernemings kan voldoen (klein, medium en groot). Die hoë-wringkrag-aandrywingstelsel en geoptimaliseerde skroefontwerp van die ekstruder kan die vervoerkapasiteit en plastiseringsdoeltreffendheid van materiale effektief verbeter, die verblyftyd van materiale in die ekstrusieholte te verminder en produksiedoeltreffendheid te verbeter. Terselfdertyd, die ekstruder neem 'n energiebesparende ontwerp aan, soos 'n hoë-doeltreffendheid motor, 'n hitteherwinningstoestel, ens., wat die eenheid se energieverbruik kan verminder deur 15%-25% in vergelyking met gewone ekstrueerders, ondernemings te help om produksiekoste te verminder.

3.1.6 Maklike werking en instandhouding:

Ons ekstrueerders neem 'n PLC intelligente beheerstelsel en 'n raakskerm-bewerkingskoppelvlak aan, wat eenvoudig en intuïtief is, maklik om te bedryf. Die stelsel kan verskeie stelle produkformules en verwerkingsparameters stoor. Wanneer kliënte verskillende tipes vuller meesterbatch produseer, hulle hoef net die ooreenstemmende formule en parameters te noem, sonder herhaalde ontfouting, wat tyd bespaar en produksiedoeltreffendheid verbeter. Die modulêre ontwerp van die toerusting maak die onderhoud geriefliker. Die skroef, vat, die kop en ander komponente kan vinnig uitmekaar gehaal en gemonteer word, wat die onderhoudstyd en arbeidsintensiteit verminder. Ons na-verkope diens span sal professionele installasie verskaf, ingebruikneming en opleidingsdienste vir kliënte, verseker dat kliënte die toerusting glad kan gebruik.

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, including HTS BASIC series, HTS PLUS series, HTS SUPER series, ZTE series and HTE series. Each series has its own characteristics and targeted adaptation scenarios, which can be selected by customers according to their own production scale, product type, budget and other factors.

3.2.1 HTS BASIC Series Extruders: Cost-Effective Choice for Medium and Small-Scale Enterprises.

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, lae geraas, 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 terme van strukturele ontwerp, 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). Een van die grootste voordele van hierdie reeks is dat dit buigsame opsies kan bied deur verskillende konfigurasiekombinasies. Kliënte kan verskillende skroefelemente kies, sterf koppe, voeding toestelle, droogtoestelle en naverwerkingstoerusting volgens hul eie produktipes, produksievermoë en begroting, om 'n produksielyn te vorm wat geskik is vir hul eie behoeftes.

3.2.2 HTS PLUS-reeks-ekstruders: Hoëprestasie-keuse vir ingenieursplastiek en vullermeesterbatch.

Die HTS PLUS-reeks-ekstruders gebruik hoë-wringkrag-ratkaste wat onafhanklik deur ons ontwikkel en vervaardig is, wat sterker wringkrag en drakrag as die HTS BASIC-reeks het. Hierdie reeks ekstrueerders word hoofsaaklik gebruik vir die verwerking van hoëprestasie-vuller-meesterbatch, soos hoogvullende CaCO3-meesterbatch (vulhoeveelheid ≥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, wat geskik is vir medium- en grootskaalse vuller-meesterbatch-ondernemings wat hoë werkverrigting en hoë vulhoeveelheid nastreef.

Daarby, die HTS PLUS reeks ekstrueerders het 'n sterker meng- en skeervermoë, wat die hoogvullende vullers volledig in die draerhars kan versprei, verseker die verspreibaarheid en stabiliteit van die meesterbatch. Dit is veral geskik vir die vervaardiging van vuller-meesterbatch wat in motoronderdele gebruik word, doppe vir huishoudelike toestelle, hoë-graad plastiek films en ander hoë-prestasie plastiek produkte.

3.2.3 HTS SUPER-reeks-ekstruders: Top-end keuse vir hoë-end vuller Masterbatch.

Die HTS SUPER-reeks-ekstruders neem die nuutste ultra-hoë wringkrag-oordragtoestel aan wat onafhanklik deur ons ontwikkel is. Gemik op die hoë wringkrag en hoë spoed eienskappe van hierdie reeks, the structural design of each key component of the extruder has been completely optimized, which is our highest-end extruder series, representing the advanced level of China’s extruder development. This series of extruders is mainly used for the processing of high-end, special and high-performance filler masterbatch, such as high-filling BaSO4 masterbatch (for medical plastics, high-grade films), glass fiber reinforced filler masterbatch, flame-retardant filler masterbatch, and filler masterbatch for special engineering plastics.

The HTS SUPER series extruders have a screw diameter ranging from 80mm to 130mm, a compression ratio of 6～12, and a screw speed range of 250～700 rpm. The screw and barrel adopt imported wear-resistant alloy steel and laser cladding technology, wat uiters hoë slytasieweerstand en korrosiebestandheid het, en kan aanpas by die verwerking van verskeie spesiale vullers (soos glasvesel, koolstof swart, bariumsulfaat) and high-filling materials (vulhoeveelheid ≥70%). Die ekstruder is toegerus met 'n intelligente PLC + wolk aanraakskerm beheer stelsel, wat afgeleë parameteraanpassing kan realiseer, produksiedatamonitering en voorspellende instandhouding van toerusting, intelligente produksiebestuur te realiseer.

Die produksiekapasiteit van die HTS SUPER-reeks-ekstruders wissel van 1000kg/h tot 3000kg/h, wat geskik is vir grootskaalse hoë-end vuller-meesterbatch-ondernemings wat hoë doeltreffendheid nastreef, hoë werkverrigting en intelligensie. Hierdie reeks ekstrueerders het die voordele van hoë presisie, sterk aanpassing, multifunksie en stabiele werkverrigting, wat kan voldoen aan die strengste verwerkingsvereistes van hoë-end vuller meesterbatch.

3.2.4 ZTE-reeks-ekstruders: Koste-effektiewe keuse vir algemene vuller-meesterbatch.

Die ZTE-reeks-ekstruders het uitstekende kosteprestasie, en hul ontwerpte parameters is geskik vir die meeste vuller-meesterbatch-materiale (such as low-to-medium filling CaCO3 masterbatch, PE/PP carrier masterbatch). Hierdie reeks ekstrueerders neem 'n vereenvoudigde en geoptimaliseerde struktuur aan, wat die produksiekoste verminder terwyl die basiese prestasie verseker word, en is geskik vir klein en mediumgrootte ondernemings met beperkte begroting en algemene produkvereistes.

Die ZTE-reeks-ekstruders het 'n skroefdeursnee wat wissel van 30 mm tot 50 mm, 'n kompressieverhouding van 4~7, en 'n skroefspoedreeks van 150~500 rpm. Die produksiekapasiteit wissel van 50kg/h tot 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, vul hoeveelheid, 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. Byvoorbeeld, 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 (vulhoeveelheid ≥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, vlamvertragende meesterbatch), 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 ton), 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 ton), it is recommended to choose the HTS PLUS series, HTS SUPER series or HTE series extruders with production capacity of more than 1000kg/h.

3.3.3 Consider the Wear Resistance of the Equipment:

The wear resistance of the screw and barrel is a key factor affecting the service life and operating cost of the extruder. For enterprises that process high-hardness fillers (such as heavy calcium carbonate, talk) or high-filling masterbatch, it is necessary to select extruders with high wear resistance (such as screw and barrel with bimetallic composite treatment or laser cladding treatment), such as the HTS PLUS series and HTS SUPER series, to reduce the frequency of component replacement and maintenance cost.

3.3.4 Consider the Cost-Effectiveness of the Equipment:

Enterprises should not only pay attention to the initial investment cost of the equipment, but also consider the long-term operating cost (soos energieverbruik, onderhoudskoste, onderdele koste). Byvoorbeeld, hoewel die aanvanklike belegging van die HTS SUPER-reeks-ekstruders hoog is, hul slytasieweerstand, stabiliteit en produksiedoeltreffendheid is beter, en die langtermyn bedryfskoste is laer; die ZTE-reeks-ekstruders het 'n lae aanvanklike belegging, maar hul produksievermoë en slytasieweerstand is beperk, wat geskik is vir ondernemings met beperkte begroting en kleinskaalse produksie.

3.3.5 Gee aandag aan die naverkoopdiens van die toerusting:

Die na-verkope diens van die toerusting is van kardinale belang vir die normale werking van die produksielyn. Ondernemings moet vervaardigers kies met perfekte naverkoopdiensstelsels, wat professionele installasie kan verskaf, ingebruikneming, opleiding, onderhoud en onderdele verskaffingsdienste. Ons het 'n professionele na-verkope diens span, which can respond to customer needs in a timely manner (provide solutions within 24 ure) 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. Daarom, 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

Vuller meesterbatch, as 'n sleutel funksionele bymiddel in plastiekverwerking, has a wide range of application fields, covering various fields such as plastic packaging, konstruksie, motor, elektronika, 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, verantwoordelik vir meer as 50% of the total application amount. Filler masterbatch is widely used in the production of plastic films, plastieksakke, woven bags, verpakkingsbande, packaging containers and other packaging products.

• Plastic Films: Including plastic thin films, thick films, stretch films, greenhouse films, ens. The filler masterbatch used for plastic films is mainly light calcium carbonate filler masterbatch or barium sulfate filler masterbatch, which requires good dispersibility, hoë fynheid en geen onsuiwerhede nie, om te verseker dat die geblaasde film geen wit kolle het nie, swart kolle of speldegate, and maintains good transparency, toughness and tensile strength. Adding an appropriate amount of filler masterbatch can not only reduce the production cost of the film, maar verbeter ook die styfheid, heat resistance and dimensional stability of the film, and reduce the shrinkage rate of the film. Byvoorbeeld, in the production of plastic shopping bags, byvoeging 1%-3% of CaCO3 filler masterbatch can reduce the cost by 5%-10% without affecting the toughness and load-bearing capacity of the bags.
• Plastic Bags: Including shopping bags, vest bags, garbage bags, food packaging bags, ens. 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, sement, chemical products and other goods; packaging belts are used for the bundling of goods. The filler masterbatch used for woven bags and packaging belts is mainly heavy calcium carbonate filler masterbatch or talc filler masterbatch, which requires high rigidity and wear resistance. Adding 5%-10% of filler masterbatch can improve the rigidity, tensile strength and wear resistance of woven bags and packaging belts, reduce the cost, and extend the service life of the products.
• Packaging Containers: Including plastic bottles, plastic barrels, plastic boxes, ens. The filler masterbatch used for packaging containers is mainly barium sulfate filler masterbatch or light calcium carbonate filler masterbatch, which requires good transparency and chemical stability. Adding an appropriate amount of filler masterbatch can reduce the cost and improve the rigidity and impact strength of the containers.

4.1.2 Plastic Construction Industry:

Filler masterbatch is widely used in the production of plastic pipes, plastic profiles, plastic sheets, plastic tiles and other construction products.

• Plastic Pipes: Including PVC pipes, PE pype, PP pipes, ens., which are used for water supply, dreinering, gas transmission, cable protection and other fields. The filler masterbatch used for plastic pipes is mainly calcium carbonate filler masterbatch or talc filler masterbatch, which requires high rigidity, heat resistance and pressure resistance. Adding 5%-15% of filler masterbatch can improve the rigidity, heat distortion temperature and pressure resistance of the pipes, reduce the cost, and prevent the pipes from deforming under high temperature and pressure.
• Plastic Profiles: Including PVC profiles for doors and windows, plastic decorative profiles, ens. The filler masterbatch used for plastic profiles is mainly calcium carbonate filler masterbatch, which requires good weather resistance and impact strength. Adding 5%-10% of filler masterbatch can improve the rigidity, weather resistance and impact strength of the profiles, reduce the cost, and ensure the service life of the profiles in outdoor environments.
• Plastic Sheets: Including PVC sheets, PE velle, PP velle, ens., which are used for indoor decoration, verpakking, 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, nie-toksisiteit, 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 (hierbo 1250 gaas) to avoid scratching children’s skin and ensure the smoothness of the toy surface. Adding 1%-3% of light calcium carbonate filler masterbatch can reduce the production cost of toys without affecting the toughness and colorability of the toys; barium sulfate filler masterbatch is suitable for transparent or semi-transparent plastic toys, which can improve the transparency and surface gloss of the toys, making them more beautiful.
• Plastic Parts and Shells: Including plastic parts for home appliances, automotive interior parts, electronic product shells, ens. The filler masterbatch used for these products is mainly talc filler masterbatch or glass fiber reinforced filler masterbatch, which requires high rigidity, heat resistance and impact strength. Byvoorbeeld, in the production of automotive interior parts (such as instrument panels, deurpanele), byvoeging 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), byvoeging 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, deurpanele, seat cushions, armrests, ens. These parts have high requirements on rigidity, hitte weerstand, low odor and environmental protection. Talc filler masterbatch and calcium carbonate filler masterbatch are the most commonly used products. Talc filler masterbatch can significantly improve the rigidity and heat resistance of polypropylene (PP) materiaal, 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. Byvoorbeeld, byvoeging 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, ens. These parts are exposed to the outdoor environment for a long time, so they have high requirements on weather resistance, impact strength and UV resistance. The filler masterbatch used for exterior parts is mainly talc filler masterbatch or barium sulfate filler masterbatch, which is usually compounded with weather-resistant additives. Adding 4%-7% of talc filler masterbatch can improve the impact strength and rigidity of the exterior parts, enhance their resistance to external impact; barium sulfate filler masterbatch can improve the weather resistance and color retention of the exterior parts, making them not easy to fade and aging under the action of sunlight and rain.
• Automotive Functional Parts: Including air intake pipes, cooling system parts, battery casings, ens. 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. Byvoorbeeld, byvoeging 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, isolasie, dimensional accuracy and heat resistance of plastic materials. Filler masterbatch is widely used in the production of plastic parts of electronic and electrical products, such as wire and cable sheaths, transformer casings, connector housings, ens.

• Wire and Cable Sheaths: The plastic sheaths of wires and cables need to have good insulation, slytasie weerstand, flame retardancy and weather resistance. The filler masterbatch used for wire and cable sheaths is mainly calcium carbonate filler masterbatch or flame-retardant filler masterbatch. Adding 3%-6% of calcium carbonate filler masterbatch can improve the wear resistance and rigidity of the sheath, reduce the cost; flame-retardant filler masterbatch (such as magnesium hydroxide, aluminum hydroxide filler masterbatch) can improve the flame retardancy of the sheath, preventing the spread of fire in case of short circuit, ensuring the safety of the circuit.
• Transformer Casings and Connector Housings: These parts need to have good insulation, heat resistance and dimensional accuracy. The filler masterbatch used is mainly talc filler masterbatch or glass fiber reinforced filler masterbatch. Adding 5%-8% of talc filler masterbatch can improve the heat resistance and dimensional stability of the parts, making them not easy to deform under long-term high temperature operation; glass fiber reinforced filler masterbatch can improve the impact strength and insulation of the parts, ensuring the normal operation of electronic and electrical products.

4.1.6 Agricultural Plastic Industry:

Agricultural plastic products (such as greenhouse films, mulch films, irrigation pipes, fertilizer bags) have the characteristics of large dosage, low cost and harsh use environment. Filler masterbatch can effectively reduce the production cost of agricultural plastic products and improve their service life.

• Greenhouse Films and Mulch Films: These products need to have good transparency, taaiheid, weather resistance and anti-aging properties. The filler masterbatch used is mainly light calcium carbonate filler masterbatch or barium sulfate filler masterbatch. Adding 1%-4% of light calcium carbonate filler masterbatch can reduce the cost of the film, improve its toughness and anti-aging properties, and extend the service life of the film; barium sulfate filler masterbatch can improve the transparency and light transmittance of the film, which is conducive to the photosynthesis of crops.
• Irrigation Pipes and Fertilizer Bags: Irrigation pipes need to have good pressure resistance and wear resistance; fertilizer bags need to have good toughness and wear resistance. The filler masterbatch used is mainly heavy calcium carbonate filler masterbatch or talc filler masterbatch. Adding 5%-10% of heavy calcium carbonate filler masterbatch can improve the pressure resistance and wear resistance of irrigation pipes, reduce the cost; byvoeging 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, verwerking parameter aanpassing en voorsorgmaatreëls. Die spesifieke operasiepunte is soos volg:

4.2.1 Bepaling van Mengverhouding:

Die mengverhouding van vuller meesterbatch en basis plastiek (draerhars van plastiekprodukte) word hoofsaaklik bepaal deur die vulhoeveelheid van die masterbatch, die prestasievereistes van die finale produk en die verwerkingskapasiteit van die toerusting. Die algemene mengverhouding reeks is 1%-20%, en die spesifieke verhouding kan volgens die volgende beginsels aangepas word:

• Vir plastiekprodukte met lae werkverrigtingvereistes en hoë kostebeheervereistes (soos gewone plastieksakke, garbage bags), die mengverhouding kan wees 5%-20% (met behulp van lae-tot-medium vulling kalsiumkarbonaatvuller meesterbatch);
• Vir plastiekprodukte met medium werkverrigtingvereistes (soos plastiekfilms, gewone spuitgietonderdele), die mengverhouding kan wees 2%-8% (gebruik mediumvullend kalsiumkarbonaat, talc or barium sulfate filler masterbatch);
• For plastic products with high performance requirements (soos motoronderdele, electronic product shells, high-grade films), die mengverhouding kan wees 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 (hierbo 1250 gaas) 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 (soos PE, PP, PVC). The specific steps are: eers, dry the base plastic particles and filler masterbatch to remove moisture (the moisture content should be controlled below 0.5%); then, put the base plastic particles and filler masterbatch into a high-speed mixer according to the determined mixing ratio, and add an appropriate amount of lubricant (if necessary) to mix uniformly. Die mengspoed is oor die algemeen 500-800 rpm, en die mengtyd is 3-5 minute. Na vermenging, the mixture can be directly sent to the extruder or injection molding machine for processing. The advantages of dry mixing are simple operation, hoë doeltreffendheid, 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. Daarom, 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 (soos temperatuur, druk, skroef spoed) 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. Byvoorbeeld, 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 (ekstrusie druk, injection pressure) needs to be appropriately increased by 10%-20%. Byvoorbeeld, 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: Vuller meesterbatch (especially calcium carbonate, talc masterbatch) is easy to absorb moisture, which will cause bubbles, pinholes and other defects in the final product. Daarom, the masterbatch should be stored in a dry, koel en geventileerde pakhuis, and should be dried before use (the drying temperature is 80-100℃, and the drying time is 2-4 ure).
• Verenigbaarheid: The carrier resin of the filler masterbatch should be consistent with or compatible with the base plastic of the product. Byvoorbeeld, 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, wat lei tot defekte soos wit kolle, 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 (oor die algemeen 6-12 maande). If the storage period is exceeded, the masterbatch may absorb moisture, agglomerate or the performance of additives may degrade, affecting the use effect. Daarom, 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.

Oplossings: 1) Select inorganic fillers with fine and uniform particle size (oor die algemeen 800-2000 gaas), 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% van die vulstof dosis) or replace with a dispersant compatible with the filler and carrier resin; 3) Optimize the premixing process, verhoog die mengspoed (800-1200 rpm) and mixing time (5-10 minute), 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.

Oplossings: 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.

Oplossings:

• 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 (byvoorbeeld, 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 (soos dispergeermiddels, smeermiddels) 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.

Oplossings:

• 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: borrels, 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.

Oplossings:

• Extend the drying time of the filler (drying temperature 80-100℃, drying time 3-5 ure), 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, koel en geventileerde pakhuis, 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 (soos klippe, metale), 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.

Oplossings:

• 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, stones), which accelerate the wear of the screw and barrel;
• The processing temperature is too low, and the materials have high viscosity, which increases the friction between the materials and the screw, vat;
• Die skroef en loop is gemaak van materiale met swak slytasieweerstand.

Oplossings:

• 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, vat.

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.

Oplossings:

• 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

Vuller meesterbatch, as a key functional additive in the plastic processing industry, plays an irreplaceable role in reducing production costs, die verbetering van produkprestasie en die optimalisering van verwerkingsdoeltreffendheid. 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, funksionalisering, hoë vulhoeveelheid, omgewingsbeskerming en intelligensie. Extrusion granulation technology, as die kerntegnologie van vuller-meesterbatch-produksie, directly determines the quality and competitiveness of the masterbatch. The performance of extruders is the key to ensuring the stable production of high-quality filler masterbatch.

We have developed a full range of twin-screw extruder products (HTS BASIC series, HTS PLUS series, HTS SUPER series, ZTE reeks, HTE reeks) according to the characteristics of filler masterbatch raw materials and processing requirements. Ons ekstrueerders het die voordele van hoë slytasieweerstand, strong shearing and mixing capacity, presiese temperatuurbeheer, 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, produkkwaliteit te verseker, en kry 'n mededingende voordeel in die strawwe markkompetisie.

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; aan die ander kant, the intelligence and automation level of production equipment will continue to improve, and intelligent granulation production lines integrating raw material pretreatment, ekstrusie granulasie, 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. Terselfdertyd, 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.