1. Qhov sib txawv ntawm daim ntawv thov.
PE phaj siv tau ntau yam: siv dav hauv kev lag luam tshuaj lom neeg, tshuab, kev lag luam tshuaj lom neeg, hluav taws xob, khaub ncaws, ntim khoom noj thiab lwm yam haujlwm. Siv dav hauv kev thauj mus los roj, kev muab dej, dej phwj tuaj, kev ywg dej ua liaj ua teb, kev thauj mus los ntawm cov khoom me me, nrog rau kev lag luam roj av, kev lag luam tshuaj lom neeg thiab kev xa ntawv thiab kev sib txuas lus, tshwj xeeb tshaj yog hauv kev thauj mus los roj.
Pp phaj siv nplai: cov khoom siv tiv thaiv acid thiab alkali, cov khoom siv tiv thaiv ib puag ncig, dej khib nyiab, cov khoom siv tso pa tawm pov tseg, lub tsev ntxhua khaub ncaws, chav huv, lub Hoobkas semiconductor thiab cov khoom siv kev lag luam cuam tshuam, kuj yog thawj qhov kev xaiv rau kev tsim cov taub dej yas, pp phaj tuab yog dav siv hauv phaj xuas nrig, phaj xuas nrig thiab lwm yam.
2. Qhov sib txawv ntawm cov yam ntxwv.
PE phaj yog mos, muaj qee qhov kev tawv, kev cuam tshuam tsis kam thiab kev ua haujlwm buffer zoo dua, kev ua haujlwm ntawm cov phaj molded zoo dua; PP board hardness siab, cov khoom siv kho tshuab tsis zoo, toughness qis, thiab kev cuam tshuam tsis zoo.
3. Qhov sib txawv ntawm cov ntaub ntawv.
PP board, tseem hu ua polypropylene (PP) board, yog cov khoom siv semi-crystalline. Nws nyuaj dua PE thiab muaj qhov melting point siab dua. PE sheet yog cov khoom siv crystallinity siab, tsis yog polar thermoplastic resin. Cov tsos ntawm HDPE thawj yog dawb milky, nrog qee qib ntawm translucency hauv qhov nyias.
Lub sijhawm tshaj tawm: Tsib Hlis-31-2022
