Polyvinylidene chloride (PVDC), cov khoom siv hluavtaws ua los ntawm polymerization ntawm vinylidene chloride. Nws yog siv feem ntau hauv cov ntaub ntawv ntshiab, hloov tau, thiab impermeable yas ntim khoom noj. Saran tau qhia los ntawm Dow Chemical Company hauv xyoo 1939 thiab tseem yog cov khoom siv pob tshab pob tshab. …
YPuas yog polyvinylidene chloride yog polymer?
9 Polyvinylidene chloride (PVDC) Polyvinylidene chloride yog ib qho ntxiv polymer ntawm vinylidene chloride. Nws yog cov cua sov-sealable thiab ua haujlwm zoo heev rau cov pa oxygen, dej vapor, tsw thiab tsw (Kader li al. 1989).
Puas yog PVDC toxic?
Tsis yog ob txoj hauv kev tom qab siv no yog suav tias yog tus phooj ywg ib puag ncig vim muaj cov tshuaj lom neeg tso tawm. Thaum incinerated, PVDC tsim kom muaj nuj nqis ntawm dioxins - ib tug paub zoo muaj zog tib neeg carcinogen.
Puas yog PVDC chloride biodegradable?
PVDC yog ib hom yas uas ua rau cov chaw pov tseg thiab ua rau muaj kuab paug. … “Cov hnab ntim biodegradable xws li PHBV muab kev ua haujlwm siab hauv lub sijhawm lawv lub neej raws li PVDC zaj duab xis qub thiab yog ua tiav bio-degradabletom qab kawg ntawm lub neej.
polyvinylidene chloride siv rau dab tsi?
Polyvinylidene chloride (PVDC), cov khoom siv hluavtaws tsim los ntawm polymerization ntawm vinylidene chloride. Nws yog siv feem ntau hauv ntshiab, yoog raws, thiab impermeable yas zaub mov qhwv.