Polypropylene yog cov polymer tsim los ntawm kev ntxiv polymerization ntawm propylene. Nws yog cov khoom siv dawb waxy nrog lub pob tshab thiab lub teeb pom kev. Tus qauv tshuaj lom neeg yog (C3H6) n, qhov ceev yog 0.89～0.91g / cm3. Nws yog flammable, nrog melting taw tes ntawm 165℃, muag ntawm ib ncig 155℃, thiab kev siv kub ntau yog -30～140℃Cov. Nws tiv taus xeb los ntawm cov kua qaub, alkalis, kua ntsev thiab ntau yam ntawm cov kuab tshuaj organic rau hauv qab 80℃, thiab tuaj yeem decompose hauv qab kub thiab oxidation. Polypropylene yog siv dav hauv kev tsim cov khaub ncaws, pam vov thiab lwm yam khoom siv fiber, cov khoom siv kho mob, tsheb, tsheb kauj vab, qhov chaw, cov raj xa dej, thiab cov thawv ntim tshuaj. Nws kuj yog siv rau hauv cov zaub mov thiab ntim ntim khoom.
Npe
polypropylene
Siv cov mis tshuaj
(C3H6)n
CAS Tus lej Sau Npe
9003-07-0
Melting taw tes
165 °C
Yog ceev
0.89～0.91g / cm³
Lub Npe Luv
PP
Puab
Tsis muaj kob, tsis muaj ntxhiab, tsis muaj tshuaj lom, txhais tau cov khoom hauv lub cev zoo
Kev hloov kho
Kev txhuam nyom, luam ntawv sib txuas, sib txuas sib txuas, txhawb nqa, txhaws, thiab lwm yam.
Rov qab siv lub
Alloying, compounding, thiab lwm yam.
Cov yam ntxwv
Thermoplastic, lub teeb tshwj xeeb nqus, tshuaj lom neeg tsis kam, thiab lwm yam.