Með hraðri þróun alþjóðlegs plastiðnaðar, eftirspurn eftir plastvörum eykst dag frá degi, og kröfur um frammistöðu vöru, kostnaðareftirlit og umhverfisvernd verða líka sífellt strangari. Fylliefni masterbatch, sem lykilvirkt aukefni í plastvinnslu, hefur verið mikið notað á ýmsum sviðum plastframleiðslu vegna kosta þess að lækka framleiðslukostnað, bæta afköst vöru og hámarka vinnslu skilvirkni. Við erum staðráðin í að útvega háþróaðar kornunarframleiðslulínur og afkastamikla pressuvélar fyrir ýmsar gerðir af fylliefni masterbatch, að treysta á mikla reynslu í rannsóknum og þróun og framleiðslu á extrusion tækni, að veita markvissa, skilvirkar og áreiðanlegar vinnslulausnir fyrir framleiðendur filler masterbatch, hjálpa fyrirtækjum að bæta framleiðslu skilvirkni, tryggja gæði vöru, og öðlast samkeppnisforskot í harðri samkeppni á markaði.
Þessi grein mun einbeita sér að sviði fylliefni masterbatch, ítarlega útlistun á grunnhugtökum, flokkun, framleiðsluferli fylliefni masterbatch, kjarnahlutverk extrusion tækni í kornunarframleiðslu sinni, kostir extruder röð okkar og markvissa aðlögun þeirra að fylliefni masterbatch vinnslu, sem og sérstökum umsóknareitum, notkunaraðferðir og algeng vandamál og lausnir í framleiðslu. Það mun bæta við nákvæmum tæknilegum breytum, vinnsluupplýsingar og verkjapunkta iðnaðarins til að auðga innihaldið, uppfylla orðafjölda kröfu um 3000-4000 orð, og veita yfirgripsmikla og faglega tilvísun fyrir viðeigandi fyrirtæki og sérfræðinga í filler masterbatch iðnaði.
1. Yfirlit yfir Filler Masterbatch iðnað og eiginleika vöru
1.1 Núverandi staða og þróunarþróun filler Masterbatch Industry
Undanfarin ár, knúin áfram af hraðri þróun iðngreina í eftirfylgni eins og umbúðir, byggingu, bifreiða, raftæki og daglegar nauðsynjar, alheimsmarkaðurinn fyrir fylliefni fyrir masterbatch hefur sýnt stöðuga vöxt. Filler masterbatch er eins konar samsett efni sem er búið til með blöndun, bráðnun, extruding og kornun ólífræn fylliefni (eins og kalsíumkarbónat, talkúm, baríumsúlfat, o.s.frv.) með fjölliða burðarefni (eins og pólýetýlen, pólýprópýlen, pólývínýlklóríð, o.s.frv.) og viðeigandi aukaefni (eins og dreifiefni, samhæfingarefni, smurefni, o.s.frv.) í ákveðnu hlutfalli. Kjarnahlutverk þess er að draga úr framleiðslukostnaði á plastvörum á sama tíma og það bætir eða viðheldur grunnframmistöðu plastvara.
Samkvæmt viðeigandi gögnum tölfræði, markaðsstærð áfyllingarmeistaraflokks á heimsvísu hefur farið yfir 20 milljarða Bandaríkjadala, og gert er ráð fyrir að það haldi vexti upp á 6%-9% á næstu árum. Meðal þeirra, kalsíumkarbónat (CaCO3) filler masterbatch er mest notaða vörutegundin, reikningur fyrir meira en 60% af heildarfylliefni masterbatch markaði, fylgt eftir með talkúmfylliefni masterbatch, baríumsúlfat (BaSO4) fylliefni masterbatch og aðrar sérstakar filler masterbatch. Asíu-Kyrrahafssvæðið er stærsti framleiðslu- og neyslumarkaður fyrir fylliefni masterbatch í heimi, reikningur fyrir meira en 50% af alþjóðlegri markaðshlutdeild, sem er aðallega vegna örrar þróunar plastvinnsluiðnaðarins í Kína, Indlandi og öðrum löndum, mikla eftirspurn eftir kostnaðarlækkun og afköstum plastvara, og stöðugum framförum á stoðgetu iðnaðarins.
Þróunarþróun filler masterbatch iðnaðarins endurspeglast aðallega í fjórum þáttum: fyrst, mikil afköst og virkni. Með uppfærslu á kröfum um niðurstreymis plastvörur, fylliefni masterbatch er ekki lengur takmörkuð við kostnaðarlækkun, en þróast smám saman í átt að virknivæðingu, eins og að bæta stífleikann, hörku, hitaþol, veðurþol og hindrunareiginleikar plastvara, og þróa sérstakar virka fylliefni masterbatches eins og logavarnarefni, antistatic og bakteríudrepandi; annað, mikið fyllingarmagn og góður dreifileiki. Undir þeirri forsendu að tryggja frammistöðu vörunnar, auka áfyllingarmagn ólífrænna fylliefna getur dregið enn frekar úr framleiðslukostnaði, sem gerir meiri kröfur til dreifingarhæfni fylliefnis masterbatch - frábær dreifileiki getur tryggt að fylliefnið dreifist jafnt í plastgrunninu, forðast útlit hvítra bletta, svartir blettir eða þétting í lokaafurðinni; þriðja, umhverfisvernd og lítil mengun. Með styrkingu alþjóðlegrar umhverfisverndarstefnu og aukinni umhverfisverndarvitund, Framleiðendur filler masterbatch eru smám saman að taka upp umhverfisvæn aukefni og framleiðsluferli, draga úr losun skaðlegra efna, og þróa niðurbrjótanlegt fylliefni masterbatch til að laga sig að þróunarþróun græns plasts; fjórða, greind og skilvirkni framleiðslutækja. Til þess að mæta hinum stóra, stöðugar og hágæða framleiðsluþarfir áfyllingarmeistaraflokks, framleiðendur eru stöðugt að kynna háþróaða kornunarframleiðslulínur og snjöll stjórnkerfi, bæta framleiðslu skilvirkni, draga úr launakostnaði og tryggja stöðugleika vörugæða.
Í ljósi þessa, extrusion granulation tækni, sem kjarnatækni við framleiðslu á fylliefni masterbatch, hefur orðið lykillinn að því að ákvarða gæði fylliefnismeistaraflokks og samkeppnishæfni fyrirtækja. Frammistaða extruders hefur bein áhrif á dreifileikann, lögun agna, bræðsluvísitala og aðrar lykilvísbendingar um masterbatch áfyllingarefnis. Faglegu extruders okkar og kornunarframleiðslulínur fyrir fylliefni masterbatch eru þróaðar til að bregðast við einkennum iðnaðarins og eftirspurn á markaði, sem getur á áhrifaríkan hátt leyst sársaukapunkta í filler masterbatch vinnslu (eins og lélegur dreifileiki, ójöfn kornastærð, lítið áfyllingarmagn, mikil orkunotkun, o.s.frv.) og hjálpa fyrirtækjum að ná hágæða og skilvirkri framleiðslu.
1.2 Flokkun á filler masterbatch og helstu eiginleikum þess
Hægt er að skipta áfyllingarflokki í mismunandi gerðir eftir tegund fylliefnis, burðarplastefni, umsóknareit og fyllingarupphæð. Hver tegund af áfyllingarflokki hefur sín einstöku einkenni og viðeigandi aðstæður. Eftirfarandi er ítarleg kynning á sameiginlegri flokkun og kjarnaeiginleikum áfyllingarmeistaraflokks:
1.2.1 Flokkun eftir tegund fyllingar:
Þetta er algengasta flokkunaraðferðin fyrir masterbatch fyrir fylliefni. Samkvæmt tegund ólífræns fylliefnis, það má aðallega skipta í kalsíumkarbónat (CaCO3) fylliefni masterbatch, talkúm fylliefni masterbatch, baríumsúlfat (BaSO4) fylliefni masterbatch, og aðrar sérstakar fylliefni masterbatches (eins og kaólínfylliefni masterbatch, carbon black filler masterbatch, glass fiber filler masterbatch, o.s.frv.).
- Calcium Carbonate (CaCO3) Fylliefni 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, rör, o.s.frv.). Calcium carbonate filler masterbatch can not only reduce production costs, but also improve the rigidity, heat resistance and dimensional stability of plastic products, og hefur ákveðin smurandi áhrif, sem getur bætt vinnsluflæði plasts.
- Talc Filler Masterbatch: Fylliefnið er talkúmduft með lagskiptri uppbyggingu. Talkduft hefur góða vélræna eiginleika, hitaþol og efnafræðilegan stöðugleika. Talc filler masterbatch er aðallega notað í pólýprópýleni (PP) plastvörur, sem getur bætt stífleikann verulega, hitaraskunarhitastig og höggstyrkur PP vara, og er mikið notað í bílahlutum, heimilistækjaskeljar, plaströr og önnur svið sem krefjast mikillar afkasta.
- Baríum súlfat (BaSO4) Fylliefni Masterbatch: Fylliefnið er baríumsúlfatduft, sem hefur mikla hvítleika, gott gagnsæi, efnaóvirkni og geislunarþol. Baríum súlfat fylliefni masterbatch er hentugur fyrir plastvörur með miklar kröfur um gagnsæi, hvítleiki og efnafræðilegur stöðugleiki (such as plastic films, plastflöskur, lækningaplastvörur, o.s.frv.), og einnig hægt að nota í geislaþolnar plastvörur (eins og lækningahlífar, fylgihluti kjarnorkuvera, o.s.frv.).
1.2.2 Flokkun eftir Carrier Resin:
Samkvæmt tegund burðarplastefnis sem notað er, fylliefni masterbatch má skipta í pólýetýlen (PE) fylliefni masterbatch, pólýprópýlen (PP) fylliefni masterbatch, pólývínýlklóríð (PVC) fylliefni masterbatch, pólýetýlen tereftalat (PET) fylliefni masterbatch, o.s.frv. Val á burðarplastefni ræðst aðallega af tegund af plastvörum. Til dæmis, PE filler masterbatch er hentugur fyrir PE plastvörur (such as plastic films, töskur, rör); PP fylliefni masterbatch er hentugur fyrir PP plastvörur (such as woven bags, sprautumótunarhlutar, bílavarahlutir); PVC filler masterbatch er hentugur fyrir PVC plastvörur (eins og PVC rör, snið, blöð).
1.2.3 Flokkun eftir umsóknareit:
Samkvæmt notkunarsviði niðurstreymis plastvara, fylliefni masterbatch má skipta í filmu-gráðu filler masterbatch, masterbatch fyrir fylliefni af innspýtingu, masterbatch fyrir fylliefni í útpressunargráðu, masterbatch fyrir fylliefni í blástursmótun, o.s.frv. Masterbatch á fyllingarefni í filmu krefst góðs dreifingarhæfni, hár fínleiki og engin óhreinindi, til að tryggja að blásið filman hafi enga hvíta bletti, svartir blettir eða göt, og viðheldur góðu gagnsæi og hörku; innspýtingarflokkur fyrir fylliefni krefst góðs vökva og einsleitrar kornastærðar, til að laga sig að hröðu innspýtingarferlinu og tryggja útlit og víddarnákvæmni sprautuvara; masterbatch fyrir fylliefni í pressuflokki krefst góðs hitastöðugleika og vélrænna eiginleika, að laga sig að háhita- og háþrýstingsútpressunarferli röra, prófíla og aðrar vörur.
1.2.4 Flokkun eftir áfyllingarupphæð:
Samkvæmt fyllingarmagni ólífrænna fylliefna, fylliefni masterbatch má skipta í lágmark-fylling masterbatch (áfyllingarmagn 30%-50%), meðalfylling masterbatch (áfyllingarmagn 50%-70%) og masterbatch með mikilli fyllingu (áfyllingarmagn 70% og ofar). Fyllingarmagnið er ákvörðuð í samræmi við frammistöðukröfur niðurstreymisvara og vinnslugetu búnaðar. Háfylling masterbatch hefur augljósari kostnaðarlækkunaráhrif, en það hefur meiri kröfur um dreifihæfni fylliefna og frammistöðu extruders - aðeins afkastamikil extruders geta tryggt samræmda blöndun og bræðslu háfyllingarefna, forðast þéttingu og lélegan vinnsluflæði.
Það er athyglisvert að kjarnaframmistöðuvísar fyllingarmeistaraflokks innihalda aðallega dreifileika, einsleitni kornastærðar, bræðsluvísitala, hvítleiki (fyrir ljósar vörur) og samhæfni við burðarplastefni. Meðal þeirra, dreifihæfni er mikilvægasti vísirinn - lélegur dreifileiki mun leiða til ójafnrar dreifingar fylliefna í plastvörum, sem leiðir til galla eins og hvíta bletti, svartir blettir, þéttbýli og brothættar vörur, sem hafa alvarleg áhrif á útlit og frammistöðu plastvara. Þess vegna, val á háþróaðri útpressunarbúnaði og vísindalegri vinnslutækni skiptir sköpum til að tryggja dreifileika og heildargæði fylliefnis masterbatch.
2. Kjarnatækni í Filler Masterbatch framleiðslu: Extrusion Granulation Technology
Extrusion kornunartækni er kjarnatæknin í framleiðslu á fylliefni masterbatch, sem samþættir blöndun, bráðnun, klippa, dreifingu og kornun. Það hefur kosti mikillar framleiðslu skilvirkni, góð vörugæði, sterk aðlögunarhæfni að hráefnum og breitt notkunarsvið. Í framleiðslu á filler masterbatch, extrusion granulation tækni er aðallega notuð til að átta sig á samræmdri dreifingu ólífrænna fylliefna í fjölliða burðarefninu, bræðið og mýkið blönduna, og pressaðu síðan út og kornaðu til að mynda kornótta fylliefnisblöndu með samræmdri stærð, gott flæði og stöðugur árangur. Gæði extrusion granulation ákvarðar beint lykilframmistöðuvísa fylliefni masterbatch, eins og dreifileika, kornastærð og bræðslustuðull.
2.1 Eiginleikar filler Masterbatch hráefna og kröfur fyrir extrusion búnað
Hráefni fylliefni masterbatch innihalda aðallega þrjá hluta: ólífræn fylliefni (eins og CaCO3, talkúm, BaSO4), fjölliða burðarefni (eins og PE, PP, PVC) og aukefni (eins og dreifiefni, samhæfingarefni, smurefni, andoxunarefni, o.s.frv.). Eiginleikar þessara hráefna eru nokkuð mismunandi, þar sem settar eru fram sérstakar kröfur um þrýstibúnað:
Fyrst, ólífrænu fylliefnin hafa mikla hörku, léleg samhæfni við fjölliða burðarefni, og auðvelt er að þétta þær. Flest ólífræn fylliefni (eins og CaCO3, talkúm) eru vatnssæknir, á meðan fjölliða burðarefni eru vatnsfælin, sem leiðir til lélegrar samhæfni milli fylliefna og burðarefna. Ef blöndun og klipping er ófullnægjandi, fylliefnin munu þéttast, sem ekki er hægt að dreifa jafnt í burðarefninu, sem hefur í för með sér léleg gæði fylliefnis masterbatch. Auk þess, mikil hörku ólífrænna fylliefna mun valda alvarlegu sliti á skrúfunni og tunnu extrudersins meðan á útpressunarferlinu stendur, sem krefst þess að skrúfa og tunnu þrýstivélarinnar hafi mjög mikla slitþol.
Í öðru lagi, blandan af fylliefni masterbatch hefur mikla seigju og lélega vökva. Viðbót á miklum fjölda ólífrænna fylliefna mun auka seigju blöndunnar verulega, draga úr vinnsluflæði, og krefjast þess að þrýstivélin hafi sterka flutningsgetu og klippikraft til að tryggja hnökralaust framvindu bráðnunar, blöndun og útpressun.
Þriðja, vinnsluhitasviðið er þröngt. Mismunandi burðarplastefni hafa mismunandi bræðslumark og hitastöðugleika. Til dæmis, bræðslumark PE er 100-130 ℃, bræðslumark PP er 160-170 ℃, og PVC er auðvelt að brjóta niður við háan hita (yfir 160 ℃). Þess vegna, extrusion búnaðurinn þarf að hafa nákvæma hitastýringargetu til að tryggja að blandan sé að fullu bráðnuð án varma niðurbrots, og til að forðast niðurbrot aukefna og versnandi frammistöðu vörunnar.
Byggt á ofangreindum eiginleikum, einn-skrúfa extruders eru ekki hentugur fyrir stórfellda og hágæða framleiðslu á fylliefni masterbatch. Vegna þess að einskrúfa extruder hefur þröngt klippisvið, léleg dælageta og engin sjálfhreinsandi áhrif. When processing high-viscosity and high-filler mixtures, it is easy to cause material accumulation, blockage and uneven mixing in the extruder barrel, resulting in poor dispersibility of filler masterbatch, uneven particle size and unstable product quality. Auk þess, the single-screw extruder has high energy consumption when processing high-filler materials, and the screw and barrel are severely worn, which increases the production cost and equipment maintenance cost of enterprises.
Tvískrúfa extruders, hins vegar, have obvious advantages in filler masterbatch production and have become the mainstream equipment for filler masterbatch extrusion granulation. Twin-screw extruders have a wider shear range, more effective pumping effect and self-cleaning effect, which can effectively solve the problems of poor compatibility, auðveld þétting og léleg vökvi á hráefnum fyllingarefnis. Samruni og snúningur tvískrúfanna getur myndað sterkan skurðkraft og hnoðunarkraft, sem getur að fullu brotið þyrpingar ólífrænna fylliefna, gera fylliefnin jafndreifð í fjölliða burðarefninu, og tryggja dreifileika og stöðugleika vörunnar. Auk þess, tvískrúfa þrýstivélin hefur góða hitastýringarnákvæmni, sterk aðlögunarhæfni að hráefnum, og getur lagað sig að vinnslu mismunandi gerða, mismunandi fyllingarmagn af masterbatch áfyllingarefnis, og hefur mikla framleiðslu skilvirkni og litla orkunotkun.
2.2 Vinnureglur um fylliefni Masterbatch Extrusion Granulation
Extrusion kornunarferli fylliefnis masterbatch er flókið eðlis- og efnaferli, sem felur í sér samspil margra þátta eins og hitastig, þrýstingi, klippikraftur og tími. The specific working principle and process flow are as follows:
Fyrst, formeðferð hráefnis. The raw materials of filler masterbatch (ólífræn fylliefni, burðarplastefni, aukaefni) need to be pretreated to ensure the quality of the final product. The specific steps include: 1) Drying treatment: Inorganic fillers (eins og CaCO3, talkúm) are usually hydrophilic and contain a certain amount of moisture. Ef rakainnihaldið er of hátt, it will affect the mixing effect and dispersibility of the materials, and even cause bubbles in the extruded masterbatch. Þess vegna, the fillers need to be dried in a dryer (such as a hot air dryer, a vacuum dryer) to reduce the moisture content to below 0.5%. 2) Crushing and sieving: The carrier resin (eins og PE, PP) is crushed into small particles or powder with a particle size of 20-40 möskva, which is conducive to uniform mixing with fillers and additives. Inorganic fillers are also sieved to remove impurities and large particles, tryggja fínleika og einsleitni fylliefna. 3) Forblöndun: Samkvæmt formúluhlutfalli, þurrkuðu fylliefnin, burðarplastefnisagnir og aukefni (dreifiefni, samhæfingarefni, smurefni, o.s.frv.) eru settar í háhraða hrærivél til forblöndunar. Blöndunarhraði er almennt 800-1200 snúningur á mínútu, og blöndunartíminn er 5-10 mínútur. Tilgangur forblöndunar er að láta aukefnin festast jafnt við yfirborð fylliefna og burðarplastefnis., bæta samhæfni milli fylliefna og burðarefnis, og leggja grunn fyrir síðari pressublöndun. Dreifingarefnið er lykilaukefni í forblöndun, sem getur myndað hlífðarfilmu á yfirborði fylliefnisins, draga úr yfirborðsorku fylliefnisins, koma í veg fyrir að fylliefnið þéttist, og bæta dreifileika fylliefnisins í burðarplastefninu.
Í öðru lagi, fóðrun og miðlun. The premixed mixture is sent to the feeding hopper of the twin-screw extruder through a screw feeder or a belt 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. The feeding device of the extruder is usually equipped with a frequency conversion speed regulation function, which can adjust the feeding speed according to the actual production situation.
Þriðja, bráðnun, mixing and shearing. The materials entering the extrusion cavity of the twin-screw extruder are pushed forward continuously by the rotating screws. The extrusion cavity is composed of a screw and a barrel, og rúmmál útpressunarholsins minnkar smám saman meðfram ásstefnunni. When the screws rotate, efnin eru smám saman þjappað undir virkni skrúfanna og tunnunnar, og þrýstingurinn í útpressunarholinu eykst smám saman (almennt 3-15MPa). Á sama tíma, efnin verða fyrir miklum skurðarkrafti og núningskrafti sem myndast af hlutfallslegri hreyfingu milli skrúfa og tunnunnar, sem og á milli skrúfufluganna.
Skurkrafturinn og núningskrafturinn geta að fullu brotið þyrpingar ólífrænna fylliefna, gera fylliefnin dreifð jafnt í bráðnu burðarplastefninu, og stuðla að samruna og samhæfni milli fylliefna og burðarefnis. Núningskrafturinn getur einnig myndað ákveðið magn af hita, sem er ásamt ytri upphitun tunnunnar (rafhitun eða gufuhitun) til að láta burðarplastefnið bráðna smám saman og mýkjast. Tunnan á extruder er venjulega skipt í 3-6 hitastýringarkafla (fóðrunarhluta, bræðsluhluti, blöndunarhluti, einsleitandi kafla, o.s.frv.), and the temperature of each section is precisely controlled according to the type of carrier resin and filler. Til dæmis, when processing PE carrier filler masterbatch, the temperature of the feeding section is 80-100℃, bræðsluhlutinn er 120-140 ℃, the mixing section is 140-150℃, and the homogenizing section is 130-140℃; when processing PP carrier filler masterbatch, the temperature of each section is 20-30℃ higher than that of PE carrier.
Í fjórða lagi, extrusion and shaping. The fully melted, mixed and dispersed material is pushed to the die head of the extruder by the screws. The die head is equipped with multiple die holes (the number and size of die holes are determined according to the particle size of the masterbatch), and the material is extruded from the die holes at a high speed to form continuous strips of uniform thickness. The temperature of the die head is slightly lower than that of the homogenizing section, which can prevent the material from decomposing due to excessive temperature and ensure the shaping effect of the strips.
Fimmta, cooling and cutting. The extruded strips are sent to a cooling device (such as a water tank, an air-cooled conveyor) for rapid cooling. The cooling temperature is generally 20-30℃, and the cooling time is 2-5 mínútur. Rapid cooling can make the strips solidify quickly, maintain the shape and size of the strips, and avoid deformation. Eftir kælingu, the strips are sent to a granulator for cutting. The granulator is equipped with a rotary knife, which can cut the strips into granular filler masterbatch with uniform size (the particle size is generally 2-5mm, which can be adjusted according to customer needs). The speed of the rotary knife is matched with the conveying speed of the strips to ensure that the particle size of the masterbatch is uniform.
Sixth, screening and packaging. The cut granular filler masterbatch is sent to a vibrating screen for screening, which can remove unqualified particles (such as too large, too small or agglomerated particles) and ensure the uniformity of the product. The qualified masterbatch is then sent to an automatic packaging machine for packaging. Pökkunarforskriftirnar geta verið aðlagaðar í samræmi við þarfir viðskiptavina (such as 25kg/bag, 50kg/poka), and the packaging should be sealed and moisture-proof to prevent the masterbatch from absorbing moisture and affecting the quality. Eftir pökkun, vörurnar eru geymdar á þurru, flott og loftræst vöruhús.
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, aðallega þar með talið eiginleika hráefnis, formula ratio, premixing effect, extrusion breytur og deyja höfuð uppbyggingu. 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 Eiginleikar hráefnis:
Týpan, kornastærð, moisture content and purity of raw materials have a great impact on the granulation effect. Til dæmis, the particle size of inorganic fillers directly affects the dispersibility and fineness of the masterbatch. The finer the particle size of the filler (almennt 800-2000 möskva), the better the dispersibility, but the higher the cost and the easier it is to agglomerate; the coarser the particle size, the lower the cost, but the dispersibility is poor, which will affect the appearance and performance of the masterbatch. The moisture content of raw materials (especially fillers) should be controlled below 0.5%; if the moisture content is too high, it will cause bubbles in the masterbatch, affect the density and mechanical properties of the product. The purity of raw materials is also very important; óhreinindi í hráefnum (such as stones, metals, ryki) will not only affect the quality of the masterbatch, but also wear the screw and barrel of the extruder, and even cause equipment blockage.
2.3.2 Formula Ratio:
The formula ratio of filler masterbatch (the ratio of filler, carrier resin and additives) is the key to determining the performance and cost of the product. The filling amount of the filler should be determined according to the performance requirements of the downstream product and the processing capacity of the equipment. Too high filling amount will lead to poor dispersibility, low toughness and poor processing fluidity of the masterbatch; too low filling amount will reduce the cost reduction effect. The type and dosage of additives also need to be reasonably matched. Til dæmis, the dispersant dosage is generally 1%-3% of the filler dosage; too little dispersant will lead to poor dispersibility of the filler, and too much dispersant will affect the compatibility between the masterbatch and the downstream plastic products, and reduce the mechanical properties of the products. The compatibilizer is used to improve the compatibility between the filler and the carrier resin; the dosage is generally 0.5%-2%, which can significantly improve the dispersibility and mechanical properties of the masterbatch. The lubricant is used to reduce the friction between the materials and the screw, barrel and die head, improve the processing fluidity, and prevent the materials from sticking to the equipment; the dosage is generally 0.3%-1%.
2.3.3 Premixing Effect:
Premixing is the foundation of extrusion granulation. The uniformity of premixing directly affects the dispersibility of the filler in the carrier resin. If the premixing is uneven, the additives cannot be uniformly adhered to the surface of the filler and carrier, resulting in local agglomeration of the filler, uneven mixing of the materials during extrusion, and poor quality of the masterbatch. To ensure the premixing effect, it is necessary to control the mixing speed, mixing time and mixing temperature. Blöndunarhraði er almennt 800-1200 snúningur á mínútu, the mixing time is 5-10 mínútur, and the mixing temperature is controlled at 40-60℃ (appropriate temperature can improve the adhesion of additives and promote uniform mixing).
2.3.4 Extrusion færibreytur:
Extrusion parameters are the most important factors affecting the granulation effect, aðallega þar með talið skrúfuhraða, extrusion hitastig og extrusion þrýstingur.
- Skrúfuhraði: The screw speed generally ranges from 150 til 600 snúningur á mínútu. Því meiri skrúfuhraði, því meiri skurðkraftur og núningskraftur sem efnin fá, the better the mixing and dispersing effect of the filler, and the higher the production efficiency. Hins vegar, ef skrúfuhraði er of hár, dvalartími efnanna í útpressunarholinu er of stuttur, resulting in incomplete melting of the carrier resin, insufficient mixing of the materials, and uneven particle size of the masterbatch; ef skrúfuhraði er of lágur, klippukrafturinn og núningskrafturinn er ófullnægjandi, the filler cannot be fully dispersed, and the production efficiency is low. The screw speed should be adjusted according to the filling amount and type of filler masterbatch—for high-filling masterbatch, a higher screw speed is needed to ensure sufficient shearing and mixing.
- Extrusion Temperature: The extrusion temperature is divided into multiple sections (fóðrunarhluta, bræðsluhluti, blöndunarhluti, einsleitandi kafla, deyja höfuð hluti), and the temperature of each section needs to be precisely controlled according to the type of carrier resin and filler. Hitastig fóðurhlutans er lægra (slightly higher than the melting point of the carrier resin), which is mainly to prevent the materials from caking and ensure smooth feeding; hitastig bræðsluhlutans er miðlungs, which is mainly to promote the melting and plasticization of the carrier resin; the temperature of the mixing section is higher, which is mainly to enhance the shear and mixing effect, and promote the uniform dispersion of the filler; the temperature of the homogenizing section is slightly lower than the mixing section, which is mainly to ensure the uniform temperature and viscosity of the materials, and avoid thermal decomposition; the temperature of the die head section is slightly lower than the homogenizing section, which is to ensure the shaping effect of the strips.
- Útpressunarþrýstingur: The extrusion pressure is generally 3-15MPa. Þrýstingurinn í útpressunarholinu ræðst aðallega af þjöppunarhlutfalli skrúfunnar, stærð deyjaholunnar og skrúfuhraða. Því hærri sem útpressunarþrýstingur er, the better the mixing and dispersing effect of the materials, and the denser the masterbatch particles. Hins vegar, if the pressure is too high, það mun auka orkunotkun og slit búnaðarins, and even cause the die head to block; ef þrýstingurinn er of lágur, the materials cannot be fully compressed and mixed, the masterbatch particles are loose, and the performance is unstable.
2.3.5 Deyja höfuðbygging:
Deyjahöfuðbyggingin inniheldur aðallega númerið, lögun og stærð deyjahola. The shape of the die hole determines the cross-sectional shape of the extruded strips (eins og hringlaga, ferningur), and the size of the die hole determines the initial diameter of the strips and the final particle size of the masterbatch. Því minni sem stærð deygjugatsins er, því meiri er útpressunarþrýstingurinn, the better the mixing and dispersing effect, but the production capacity will be reduced; the larger the die hole size, the lower the extrusion pressure, the lower the production efficiency, but the particle size of the masterbatch is larger. The number of die holes affects the production capacity; the more the number of die holes, the higher the production capacity, but it is necessary to ensure that the pressure distribution is uniform, so as to avoid uneven thickness of the strips and uneven particle size of the masterbatch.
3. Our Extruders: Advantages and Product Series for Filler Masterbatch Production
We have long been engaged in the research, development and production of high-performance extruders and granulation production lines, and have accumulated rich experience in the field of filler masterbatch processing. According to the characteristics of filler masterbatch raw materials (high hardness, poor compatibility, high viscosity) og vinnslukröfur (good dispersibility, uniform particle size, high filling amount), we have developed a series of twin-screw extruders specially suitable for filler masterbatch production. Our extruders have the advantages of high wear resistance, strong shearing force, nákvæm hitastýring, stable performance and low operating cost, which can meet the processing needs of various types, mismunandi fyllingarmagn af masterbatch áfyllingarefnis (CaCO3, talkúm, BaSO4, o.s.frv.), and help enterprises improve production efficiency, ensure product quality and reduce production costs.
3.1 Main Advantages of Our Extruders for Filler Masterbatch Production
3.1.1 High Wear Resistance, Long Service Life:
Aiming at the problem that inorganic fillers (eins og CaCO3, talkúm) 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. Auk þess, we also provide professional wear detection services for the screw and barrel. Our technical team will regularly detect the wear degree of the screw and barrel for customers, issue a detailed wear report, and put forward targeted replacement and maintenance suggestions, ensuring that customers only replace components when necessary, avoiding unnecessary waste.
3.1.2 Strong Shearing and Mixing Capacity, Excellent Dispersibility:
The key to filler masterbatch production is to ensure the uniform dispersion of fillers. Our twin-screw extruders adopt an intermeshing co-rotating twin-screw structure, með hæfilegri skrúfuhalla, lead and compression ratio design. Samruni og snúningur tvískrúfanna getur myndað sterkan skurðkraft og hnoðunarkraft, sem getur að fullu brotið þyrpingar ólífrænna fylliefna, gera fylliefnin dreifð jafnt í bráðnu burðarplastefninu, and ensure the dispersibility of the masterbatch. The screw is designed with a modular structure, and different screw elements (such as conveying elements, blanda þætti, shearing elements) can be freely combined according to the type and filling amount of filler masterbatch, so as to adjust the shear force and mixing effect, and achieve the best processing effect. Til dæmis, when processing high-filling CaCO3 masterbatch, we can configure more shearing elements to enhance the shearing effect and ensure the uniform dispersion of the filler; when processing talc masterbatch which requires high mixing uniformity, we can configure more mixing elements to improve the mixing effect.
3.1.3 Nákvæm hitastýring, 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, kerfið mun gefa út viðvörunarboð í tíma, and even automatically adjust the heating power or shut down the equipment if necessary, til að forðast bilun í búnaði og vandamál með gæði vöru. Auk þess, 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 Breitt notkunarsvið, Strong Flexibility:
Our extruder series can adapt to the processing needs of various types of filler masterbatch, including CaCO3 filler masterbatch, talkúm fylliefni masterbatch, BaSO4 filler masterbatch, og aðrar sérstakar fylliefni masterbatches. The filling amount can be adjusted from 30% til 80%, which can meet the different cost and performance requirements of customers. The modular design of the extruder (skrúfa, tunnu, deyja höfuð, o.s.frv.) 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, án þess að skipta um allan búnaðinn, which reduces the cost of equipment transformation and improves the flexibility and adaptability of the equipment. Auk þess, our extruders can also be matched with different auxiliary equipment (eins og háhraða blöndunartæki, þurrkara, kælir, 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 Mikil framleiðslu skilvirkni, Low Energy Consumption:
Tvískrúfa extruders okkar hafa mikla framleiðslu skilvirkni, sem er mun hærra en hjá einskrúfa pressuvélum. The production capacity of our extruders ranges from 100kg/h to 3000kg/h, sem getur mætt framleiðsluþörfum mismunandi mælikvarða fyrirtækja (lítill, miðlungs og stór). Drifkerfið með hátt tog og fínstillt skrúfuhönnun extrudersins getur í raun bætt flutningsgetu og mýkingarskilvirkni efna., draga úr dvalartíma efna í útpressunarholinu og bæta framleiðslu skilvirkni. Á sama tíma, the extruder adopts an energy-saving design, such as a high-efficiency motor, a heat recovery device, o.s.frv., which can reduce the unit energy consumption by 15%-25% compared with ordinary extruders, helping enterprises reduce production costs.
3.1.6 Easy Operation and Maintenance:
Our extruders adopt a PLC intelligent control system and a touch screen operation interface, sem er einfalt og leiðandi, auðvelt í notkun. The system can store multiple sets of product formulas and processing parameters. When customers produce different types of filler masterbatch, þeir þurfa aðeins að kalla samsvarandi formúlu og færibreytur, án endurtekinnar villuleitar, which saves time and improves production efficiency. The modular design of the equipment makes the maintenance more convenient. Skrúfan, tunnu, die head and other components can be disassembled and assembled quickly, which reduces the maintenance time and labor intensity. Þjónustuteymi okkar eftir sölu mun veita faglega uppsetningu, gangsetningar- og þjálfunarþjónusta fyrir viðskiptavini, tryggja að viðskiptavinir geti notað búnaðinn á snurðulausan hátt.
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 röð, 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.
HTS BASIC röð extruders eru hagkvæm vörulína sem er sjálfstætt þróuð af okkur, 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, lítill hávaði, 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.
Hvað varðar burðarvirkishönnun, 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, sjálfvirk hitastýring, automatic pressure control and automatic cutting, and is simple and easy to operate.
The production capacity of the HTS BASIC series extruders ranges from 100kg/h to 500kg/h, which is suitable for medium and small-sized filler masterbatch processing enterprises that mainly produce common filler masterbatch (such as CaCO3 masterbatch for plastic films, woven bags). One of the biggest advantages of this series is that it can provide flexible options through different configuration combinations. Customers can choose different screw elements, deyja höfuð, feeding devices, drying devices and post-processing equipment according to their own product types, production capacity and budget, so as to form a production line suitable for their own needs.
3.2.2 HTS PLUS Series Extruders: High-Performance Choice for Engineering Plastic and Filler Masterbatch.
The HTS PLUS 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 (eins og 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. Skrúfan og tunnan samþykkja bimetallic samsett meðferð, sem hefur meiri slitþol og tæringarþol, and can adapt to the processing of high-hardness fillers (such as heavy calcium carbonate, talkúm) and high-filling materials. The extruder is equipped with an advanced intelligent control system, sem getur gert sér grein fyrir nákvæmri stjórn á extrusion breytum og rauntíma eftirliti með framleiðslugögnum. 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.
Auk þess, the HTS PLUS series extruders have a stronger mixing and shearing capacity, which can fully disperse the high-filling fillers in the carrier resin, ensuring the dispersibility and stability of the masterbatch. It is especially suitable for the production of filler masterbatch used in automotive parts, heimilistækjaskeljar, high-grade plastic films and other high-performance plastic products.
3.2.3 HTS SUPER Series Extruders: Top-End Choice for High-End Filler Masterbatch.
The HTS SUPER series extruders adopt the latest ultra-high torque transmission device independently developed by us. Aiming at the high torque and high speed characteristics of this series, the structural design of each key component of the extruder has been completely optimized, which is our highest-end extruder series, representing the advanced level of China’s extruder development. This series of extruders is mainly used for the processing of high-end, special and high-performance filler masterbatch, such as high-filling BaSO4 masterbatch (for medical plastics, high-grade films), glass fiber reinforced filler masterbatch, flame-retardant filler masterbatch, and filler masterbatch for special engineering plastics.
The HTS SUPER series extruders have a screw diameter ranging from 80mm to 130mm, a compression ratio of 6~12, and a screw speed range of 250~700 rpm. The screw and barrel adopt imported wear-resistant alloy steel and laser cladding technology, which has extremely high wear resistance and corrosion resistance, and can adapt to the processing of various special fillers (such as glass fiber, carbon black, baríumsúlfat) and high-filling materials (filling amount ≥70%). The extruder is equipped with an intelligent PLC + cloud touch screen control system, which can realize remote parameter adjustment, production data monitoring and predictive maintenance of equipment, realizing intelligent production management.
The production capacity of the HTS SUPER series extruders ranges from 1000kg/h to 3000kg/h, which is suitable for large-scale high-end filler masterbatch enterprises that pursue high efficiency, high performance and intelligence. This series of extruders has the advantages of high precision, strong customization, multi-function and stable performance, which can meet the most stringent processing requirements of high-end filler masterbatch.
3.2.4 ZTE Series Extruders: Cost-Effective Choice for General Filler Masterbatch.
The ZTE series extruders have excellent cost performance, and their designed parameters are suitable for most filler masterbatch materials (such as low-to-medium filling CaCO3 masterbatch, PE/PP carrier masterbatch). This series of extruders adopts a simplified and optimized structure, which reduces the production cost while ensuring the basic performance, and is suitable for small and medium-sized enterprises with limited budget and general product requirements.
The ZTE series extruders have a screw diameter ranging from 30mm to 50mm, a compression ratio of 4~7, and a screw speed range of 150~500 rpm. The production capacity ranges from 50kg/h to 300kg/h, which is suitable for small-scale production of common filler masterbatch. The extruder is easy to operate and maintain, and the after-sales service cost is low, which is a cost-effective choice for small enterprises and individual workshops.
3.2.5 HTE Series Extruders: High-Efficiency and Energy-Saving Choice for Large-Scale Production.
The HTE series extruders combine high performance and high cost performance, and are designed to reduce energy consumption with higher output. This series of extruders adopts a high-efficiency motor, an optimized screw structure and a heat recovery device, which can reduce the unit energy consumption by 20%~25% compared with ordinary extruders, and has higher production efficiency.
The HTE series extruders have a screw diameter ranging from 65mm to 110mm, a compression ratio of 5~9, and a screw speed range of 200~600 rpm. The production capacity ranges from 500kg/h to 2500kg/h, which is suitable for large-scale continuous production of common filler masterbatch (such as CaCO3 masterbatch, talc masterbatch). The extruder is equipped with a precise temperature control system and a stable pressure control system, which can ensure the uniformity and stability of the product quality. It is suitable for large-scale filler masterbatch enterprises that pursue high efficiency, energy saving and cost control.
3.3 Selection Suggestions for Filler Masterbatch Extruders
When selecting extruders for filler masterbatch production, fyrirtæki þurfa að huga vel að eigin framleiðsluþörfum, vörutegundir, áfyllingarmagn, fjárhagsáætlun og aðra þætti til að tryggja að valinn búnaður geti mætt raunverulegum framleiðsluþörfum og skilað hámarks efnahagslegum ávinningi. Eftirfarandi eru nokkrar sérstakar tillögur um val:
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. Til dæmis, if the enterprise mainly produces low-to-medium filling CaCO3 masterbatch (filling amount ≤60%) and common PE/PP carrier masterbatch, the HTS BASIC series or ZTE series extruders are suitable; if the enterprise produces high-filling masterbatch (filling amount ≥60%), talc masterbatch or BaSO4 masterbatch, the HTS PLUS series extruders are recommended; if the enterprise produces high-end, special filler masterbatch (such as glass fiber reinforced masterbatch, logavarnarefni masterbatch), the HTS SUPER series extruders are the best choice; if the enterprise pursues large-scale, energy-saving and high-efficiency production, the HTE series extruders are suitable.
3.3.2 Ákvarða framleiðslugetu extrudersins samkvæmt framleiðsluskalanum:
Fyrirtæki ættu að velja pressuvélina með viðeigandi framleiðslugetu í samræmi við eigin framleiðslustærð og eftirspurn á markaði. Ef framleiðsluskalinn er lítill (dagleg framleiðsla minna en 1 tonn), the ZTE series or HTS BASIC series extruders with production capacity of 50-300kg/h are suitable; ef framleiðslustærð er miðlungs (dagleg framleiðsla 1-5 tonn), the HTS BASIC series or HTS PLUS series extruders with production capacity of 300-1000kg/h are suitable; ef framleiðslan er stór (dagleg framleiðsla meira en 5 tonn), 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, talkúm) 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 Hugleiddu kostnaðarhagkvæmni búnaðarins:
Enterprises should not only pay attention to the initial investment cost of the equipment, but also consider the long-term operating cost (eins og orkunotkun, maintenance cost, spare parts cost). Til dæmis, although the initial investment of the HTS SUPER series extruders is high, their wear resistance, stability and production efficiency are better, and the long-term operating cost is lower; the ZTE series extruders have a low initial investment, but their production capacity and wear resistance are limited, which is suitable for enterprises with limited budget and small-scale production.
3.3.5 Pay Attention to the After-Sales Service of the Equipment:
The after-sales service of the equipment is crucial for the normal operation of the production line. Enterprises should select manufacturers with perfect after-sales service systems, which can provide professional installation, gangsetning, þjálfun, maintenance and spare parts supply services. Við erum með faglegt þjónustuteymi eftir sölu, which can respond to customer needs in a timely manner (provide solutions within 24 klukkustundir) and send technicians to the site for maintenance if necessary, tryggja eðlilega starfsemi framleiðslulínunnar.
3.3.6 Hugleiddu sveigjanleika og stækkanleika búnaðarins:
Með breytingum á eftirspurn á markaði, enterprises may need to adjust their product types and filling amounts. Þess vegna, við val á þrýstivélum, fyrirtæki ættu að huga að sveigjanleika og stækkanleika búnaðarins. Extruders okkar samþykkja mát hönnun, sem hægt er að sameina að vild og uppfæra í samræmi við þarfir fyrirtækja, bæta sveigjanleika og stækkanleika búnaðarins, og draga úr kostnaði við umbreytingu búnaðar.
4. Application Fields and Usage Methods of Filler Masterbatch
Fylliefni masterbatch, sem lykilvirkt aukefni í plastvinnslu, has a wide range of application fields, covering various fields such as plastic packaging, byggingu, bifreiða, rafeindatækni, 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, reikningur fyrir meira en 50% of the total application amount. Filler masterbatch is widely used in the production of plastic films, plastpokar, woven bags, packaging belts, packaging containers and other packaging products.
- Plastic Films: Including plastic thin films, thick films, stretch films, greenhouse films, o.s.frv. The filler masterbatch used for plastic films is mainly light calcium carbonate filler masterbatch or barium sulfate filler masterbatch, which requires good dispersibility, hár fínleiki og engin óhreinindi, til að tryggja að blásið filman hafi enga hvíta bletti, svartir blettir eða göt, 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, but also improve the rigidity, heat resistance and dimensional stability of the film, and reduce the shrinkage rate of the film. Til dæmis, in the production of plastic shopping bags, bætir við 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, o.s.frv. 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, o.s.frv. 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 rör, PP pipes, o.s.frv., which are used for water supply, frárennsli, 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, o.s.frv. 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 blöð, PP blöð, o.s.frv., which are used for indoor decoration, umbúðir, 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, ekki eiturhrif, 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 (hér að ofan 1250 möskva) 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, o.s.frv. 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. Til dæmis, in the production of automotive interior parts (such as instrument panels, hurðarplötur), bætir við 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), bætir við 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, hurðarplötur, seat cushions, armrests, o.s.frv. These parts have high requirements on rigidity, hitaþol, 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) efni, 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. Til dæmis, bætir við 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, o.s.frv. 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, o.s.frv. 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. Til dæmis, bætir við 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, einangrun, 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, o.s.frv.
- Wire and Cable Sheaths: The plastic sheaths of wires and cables need to have good insulation, slitþol, 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, áveitulagnir, 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, hörku, 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; bætir við 3%-6% of talc filler masterbatch can improve the toughness and wear resistance of fertilizer bags, making them not easy to break during transportation and use.
4.2 Usage Methods of Filler Masterbatch
The correct use of filler masterbatch is crucial to ensure the quality of plastic products and give full play to the performance of the masterbatch. The usage methods of filler masterbatch mainly include mixing ratio, mixing method, processing parameter adjustment and precautions. The specific operation points are as follows:
4.2.1 Determination of Mixing Ratio:
The mixing ratio of filler masterbatch and base plastic (carrier resin of plastic products) is mainly determined by the filling amount of the masterbatch, the performance requirements of the final product and the processing capacity of the equipment. The general mixing ratio range is 1%-20%, and the specific ratio can be adjusted according to the following principles:
- For plastic products with low performance requirements and high cost control requirements (such as ordinary plastic bags, garbage bags), the mixing ratio can be 5%-20% (using low-to-medium filling calcium carbonate filler masterbatch);
- For plastic products with medium performance requirements (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 (eins og bílavarahlutir, 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 (hér að ofan 1250 möskva) 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 (eins og PE, PP, PVC). The specific steps are: fyrst, 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 (ef þörf krefur) to mix uniformly. Blöndunarhraði er almennt 500-800 snúningur á mínútu, og blöndunartíminn er 3-5 mínútur. Eftir blöndun, the mixture can be directly sent to the extruder or injection molding machine for processing. The advantages of dry mixing are simple operation, mikil afköst, 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. Þess vegna, 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, þrýstingi, skrúfa hraða) 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. Til dæmis, 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 þrýstingur, injection pressure) needs to be appropriately increased by 10%-20%. Til dæmis, 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: Fylliefni masterbatch (especially calcium carbonate, talc masterbatch) is easy to absorb moisture, which will cause bubbles, pinholes and other defects in the final product. Þess vegna, the masterbatch should be stored in a dry, flott og loftræst vöruhús, and should be dried before use (the drying temperature is 80-100℃, and the drying time is 2-4 klukkustundir).
- Samhæfni: The carrier resin of the filler masterbatch should be consistent with or compatible with the base plastic of the product. Til dæmis, 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, sem leiðir til galla eins og hvíta bletti, 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 (almennt 6-12 mánuði). If the storage period is exceeded, the masterbatch may absorb moisture, agglomerate or the performance of additives may degrade, affecting the use effect. Þess vegna, 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.
Orsakir: 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.
Lausnir: 1) Select inorganic fillers with fine and uniform particle size (almennt 800-2000 möskva), 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 snúningur á mínútu) and mixing time (5-10 mínútur), 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.
Orsakir: 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.
Lausnir: 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.
Orsakir:
- 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.
Lausnir:
- 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 (til dæmis, 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).
Orsakir:
- The thermal stability of the carrier resin is poor, and thermal decomposition occurs at high processing temperatures;
- The additives (eins og dreifiefni, smurefni) 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.
Lausnir:
- 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: loftbólur, pinholes and other defects appear in the final plastic product after the masterbatch is mixed with the base plastic.
Orsakir:
- 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.
Lausnir:
- Extend the drying time of the filler (drying temperature 80-100℃, drying time 3-5 klukkustundir), 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, flott og loftræst vöruhús, 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.
Orsakir:
- 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.
Lausnir:
- Stop the machine immediately, slökktu á aflgjafanum, 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.
Orsakir:
- The filler has high hardness (such as heavy calcium carbonate, talkúm) 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, tunnu;
- The screw and barrel are made of materials with poor wear resistance.
Lausnir:
- 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, tunnu.
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, og óstöðug vörugæði.
Orsakir:
- 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.
Lausnir:
- 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
Fylliefni masterbatch, as a key functional additive in the plastic processing industry, plays an irreplaceable role in reducing production costs, bæta afköst vöru og hámarka vinnslu skilvirkni. 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, virkni, high filling amount, umhverfisvernd og upplýsingaöflun. Extrusion granulation technology, sem kjarnatækni við framleiðslu á fylliefni masterbatch, 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 röð, HTS SUPER series, ZTE series, HTE röð) according to the characteristics of filler masterbatch raw materials and processing requirements. Our extruders have the advantages of high wear resistance, strong shearing and mixing capacity, nákvæm hitastýring, 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, tryggja gæði vöru, og öðlast samkeppnisforskot í harðri samkeppni á markaði.
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; hins vegar, 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. Á sama tíma, 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.