Feem ntau siv cov thermoplastic resin yog nylon (PA), thiab cov hlau nplaum kub resistant siv polyphenylene sulfide (PPS). Lub qub yog ib hom kev siv dav siv zoo heev yas yas, qhov kub siab tshaj plaws ntawm cov hlau nplaum yog li 120 degree, thaum lub sijhawm tom kawg tuaj yeem siv rau hauv 180 ~ 200 degree; Cov additives muaj xws li coupling agent, antioxidant, plasticizer, lubricant, thiab lwm yam., ua ntej sib tov, cov khoom no thiab cov hmoov sib nqus tau sib xyaw ua ke, thiab tom qab ntawd cov sib tov raug xa mus rau ib qho kauv los yog ob chav kauv pas nrig sib tov granulator rau kev sib tov, ua kom cov khoom sib tov. yuav tsum tau txhaj tshuaj los yog extrusion.
Calendered daim hlau nplaum
Roj hmab yog siv los ua nplaum, feem ntau siv yog cov roj hmab buyanogen thiab chlorinated polyethylene. Yog tias muaj qhov xav tau ntawm qhov kub thiab txias, siv polyurethane. Cov hmoov sib nqus, resin, vulcanizing tus neeg sawv cev thiab lwm yam khoom ntxiv yog sib xyaw ua ke, thiab tom qab ntawd sib xyaw hauv cov roj hmab qhib sib xyaw tshuab lossis kaw tshuab sib xyaw. Hauv kev sib xyaw thiab tsim cov txheej txheem, cov roj hmab yog nyob rau hauv lub xeev viscoelastic, es tsis yog nyob rau hauv lub xeev molten zoo li txhaj tshuaj / extrusion hlau nplaum, yog li qhov sib tov kub yog qhov qis, thiab cov kev cai tiv thaiv oxidation ntawm cov hmoov hlau nplaum tuaj yeem ua tau qis dua. . Muaj cov chav kawm ntawm cov thermoplastic elastomers hauv cov ntaub ntawv polymer, uas pom zoo elasticity ze rau ntawm cov roj hmab ib txwm nyob hauv chav tsev kub, tab sis tib lub sijhawm tuaj yeem ua tiav los ntawm cov txheej txheem yas lossis roj hmab, thiab tau ua tiav kev cog qoob loo rau hauv calended-forming ruaj khov hlau nplaum. . Qhov nrov tshaj plaws yog chlorinated polyethylene elastomer, uas tuaj yeem siv los ua kom muaj qhov sib npaug sib npaug ntawm cov hlau nplaum. Thiab cov txheej txheem vulcanization ntawm roj hmab tuaj yeem raug tshem tawm. Qhov loj tshaj qhov tsis zoo ntawm cov thermoplastic elastomers yog tias lawv tsis zoo rau cov roj hmab hauv cov ntsiab lus ntawm kev hnav tsis kam thiab kub tsis kam, tab sis qhov hnav tsis kam yuav tsum tsis yog qhov tseem ceeb rau feem ntau daim ntawv thov hlau nplaum.
