Txheej txheem cej luam ntawm Polypropylene Plastics

1. Taw qhia

Polypropylene yas (Polypropylene) yog tau los ntawm polymerizing propylene nrog roj av raws li ib tug hnyav nyob rau hauv qhov kev txiav txim ntawm methane-aluminium thiab titanium trichloride catalysts nyob rau hauv cov kev mob ntawm 20 atmospheres thiab 50 degree. Nws lub npe lag luam hu ua "PP", thiab cov lus Askiv luv yog: PP.

2. Kev txheeb xyuas cov yam ntxwv

Thaum tsis muaj xim, nws yog milky dawb translucent lub cev, mos; tus txheeb ze ntom ntom yog qis dua cov dej, thiab nws tuaj yeem ntab rau ntawm kab rov tav; lub softening nyob rau hauv boiling dej yog tsis pom tseeb, cov duab tsis hloov, softening kub yog 110 degree; tes yog du, tab sis tsis greasy, thiab kev ntxhib los mos yog ruaj thiab zoo toughness. Brittle fracture tshwm sim thaum lub strip yog stretched.

3. Cov yam ntxwv ntawm combustion

Nws yog flammable thiab tuaj yeem hlawv tom qab tawm hauv qhov hluav taws kub, nrog cov ntxhiab tsw tshwj xeeb khiav tawm; cov nplaim taws yog daj, nrog cov pa taws me me, kub hnyiab, yaj thiab ntws.