Khoom hom xim ntawm cov xim tha xim
Thawj tiam: PVC khoom
1. Chim zog
Cov ntawv sau ntawm polyvinyl chloride - tsis ruaj ntseg rau lub teeb thiab cua sov. Feem ntau hu ua rhino tawv khoom.
2.Nyob sib kis
Lub ntsiab lus softening yog 80 degree, thiab kev txiav tawm pib ntawm 130 degrees. Raws li qhov tsis muaj tus stabilizer ntxiv, polyvinyl chloride yuav tsum decomposed ntawm 100 degrees, thiab decomposition ntawm 130 degrees los yog ntau dua.
3. Rov qab roj
Tom qab pyrolysis, tso hydrogen chloride roj (hydrogen chloride gas yog lub nkev tshuaj lom) kom ua rau nws tawg, ntawm cov xim dawb-liab-daj-xim dub.
4. Kev hloov pauv
UV thiab cov pa oxygen hauv lub hnub yuav ua rau lub duab-oxidation decomposition ntawm polyvinyl chloride, yog li ua qhov yooj ntawm polyvinyl chloride nco, thiab thaum kawg ua nws nkig thiab ntuav.
PVC yog siv nyob rau hauv xws li cov ntaub ntawv: hluav taws xob daim kab xev, nplaum daim nplaum lub pob, daim duab stickers, raincoats, tablecloths, umbrellas, nkawm khau thiab agricultural films.
Qhov tsis zoo ntawm kev thov ntawm cov xim muaj hlau
1. Tsis muaj kev sib tw, tsis tuaj yeem muab qhwv los ntawm lub tsheb muaj radian.
2. Kev kam rau daj, daj pom tseeb hauv peb lub hlis.
3 yooj yim tawg, ultraviolet thiab oxygen nyob rau hauv lub hnub yuav ua rau lub duab-oxidation decomposition ntawm polyvinyl chloride, thiaj li hais tias cov yooj ntawm PVC poob, thiab thaum kawg crisp, cracking.