Cov khoom tseem ceeb ntawm PE hnab yog polyethylene, uas muaj qhov kub thiab txias tsis kam, zoo tshuaj ruaj khov, thiab tuaj yeem tiv taus cov kua qaub thiab alkali feem ntau. Nws yog insoluble nyob rau hauv cov kuab tshuaj nyob rau hauv lub chav tsev kub, tsis muaj dej nqus, thiab zoo heev hluav taws xob rwb thaiv tsev zog; Nws yog heev rhiab heev thiab tsis zoo thaum tshav kub kub aging kuj. Cov khoom ntawm polyethylene sib txawv los ntawm ntau yam mus rau ntau yam, feem ntau nyob ntawm cov qauv molecular thiab ntom. Cov khoom uas muaj qhov sib txawv tuaj yeem tau txais los ntawm kev siv cov txheej txheem ntau lawm. Polyethylene tuaj yeem ua tiav los ntawm cov txheej txheem thermoplastic molding. Nws muaj ntau yam kev siv, feem ntau yog siv los tsim cov yeeb yaj kiab, ntim, kav, monofilaments, xov hlau thiab cables, khoom siv txhua hnub, thiab lwm yam, thiab tuaj yeem siv los ua cov khoom siv hluav taws xob ntau zaus rau TVs, radars, thiab lwm yam.
PE hnab yog ib hom hnab yas, PE hnab muab faib ua siab ceev thiab tsawg ntom. High-density sawv daws yuav tougher, muaj siab transparency, xav tias tawv, thiab kuj kim. Feem ntau, cov hnab yas muab los ntawm cov khw loj yog cov hnab ntim PE siab. Lub hnab PE uas tsis tshua muaj siab yog cov khoom zoo tib yam ntawm lub hnab muag muag muag los ntawm cov zaub hauv khw muag khoom. Qhov zoo yog qhov qis dua, lub pob tshab tsis zoo, thiab tus nqi pheej yig.
Hauv kev lag luam, PE hnab kuj suav nrog copolymer ntawm ethylene thiab ib qho me me ntawm -olefin. Polyethylene tsis muaj ntxhiab, tsis muaj tshuaj lom, zoo li siv quav ciab, muaj qhov kub thiab txias tsis kam, tshuaj lom neeg ruaj khov, tuaj yeem tiv taus feem ntau cov kua qaub thiab alkali yaig, yog insoluble nyob rau hauv cov kuab tshuaj nyob rau hauv chav tsev kub, tsis tshua muaj dej nqus, thiab muaj hluav taws xob rwb thaiv tsev zoo heev. . Tab sis polyethylene yog ib yam khoom ntawm ib puag ncig kev nyuaj siab. Polyethylene tuaj yeem ua tiav los ntawm cov txheej txheem thermoplastic molding. Nws muaj ntau yam kev siv, feem ntau yog siv los tsim cov yeeb yaj kiab, ntim, kav, monofilaments, xov hlau thiab cables, khoom siv txhua hnub, thiab lwm yam, thiab tuaj yeem siv los ua cov khoom siv hluav taws xob ntau zaus rau TVs, radars, thiab lwm yam. Nrog rau kev txhim kho. ntawm kev lag luam petrochemical, kev tsim cov polyethylene tau tsim sai heev, thiab cov khoom tso tawm yog kwv yees li 1/4 ntawm tag nrho cov zis ntawm cov yas. Xyoo 1983, tag nrho cov peev txheej ntawm polyethylene hauv ntiaj teb yog 24.65Mt, thiab lub peev xwm ntawm cov cuab yeej siv hauv kev tsim kho yog 3.16Mt.
