Polyethylene yog abbreviated li PE, uas yog ib hom thermoplastic resin ua los ntawm polymerization ntawm ethylene.Hauv kev lag luam, nws kuj suav nrog copolymer ntawm ethylene thiab ib qho me me ntawm α-olefin.Polyethylene tsis muaj ntxhiab tsw, tsis muaj tshuaj lom, zoo li siv quav ciab, muaj qhov tsis zoo ntawm qhov kub thiab txias (qhov kev siv tsawg kawg nkaus tuaj yeem ncav cuag -70 ~ 100 ℃), muaj tshuaj lom neeg ruaj khov, thiab tuaj yeem tiv taus cov kua qaub thiab alkalis feem ntau (tsis tiv taus oxidizing zog. ) Acid), insoluble nyob rau hauv cov kuab tshuaj nyob rau hauv chav tsev kub, tsis tshua muaj dej nqus, zoo heev hluav taws xob rwb thaiv tsev;tab sis polyethylene yog rhiab heev rau ib puag ncig kev nyuaj siab (tshuaj lom neeg thiab mechanical teebmeem), thiab tsis zoo thaum tshav kub kub aging kuj.Cov khoom ntawm polyethylene sib txawv ntawm hom mus rau hom, feem ntau nyob ntawm tus qauv molecular thiab ntom.Cov txheej txheem ntau lawm tuaj yeem siv kom tau txais cov khoom sib txawv (0.91 ~ 0.96g / cm3).Polyethylene tuaj yeem ua tiav los ntawm cov txheej txheem thermoplastic molding (saib cov txheej txheem yas).Nws muaj ntau yam kev siv, feem ntau yog siv los ua cov yeeb yaj kiab, ntim, kav dej, monofilaments, xov hlau thiab cables, khoom siv txhua hnub, thiab lwm yam, thiab tuaj yeem siv los ua cov khoom siv insulating siab rau TVs, radars, thiab lwm yam.
Hom PE:
(1) LDPE: tsawg ntom polyethylene, siab siab polyethylene
(2) LLDPE: linear low density polyethylene
(3) MDPE: nruab nrab ntom polyethylene, bimodal resin
(4) HDPE: siab ceev polyethylene, tsis tshua muaj siab polyethylene
(5) UHMWPE: Ultra-siab molecular hnyav polyethylene
(6) Hloov kho polyethylene: CPE, cross-linked polyethylene (PEX)
(7) Ethylene copolymer: ethylene-propylene copolymer (yas), EVA, ethylene-butene copolymer, ethylene-lwm olefin (xws li octene POE, cyclic olefin) copolymer, ethylene-unsaturated ester copolymer (EEA, AA, EMMA EMMA, UA

Peb pipetteyog ua los ntawm cov khoom siv HDPE