Polyvinyl kloridi

Polyvinyl kolorayidi, PVC, ndi polima wopangidwa ndi vinilu kolorayidi monoma (VCM) mu peroxide, azo mankhwala kapena polymerization limagwirira cha kwakukulu polymerization pansi pa kuwala ndi kutentha.Ethylene chloride homopolymer ndi vinyl chloride copolymer system amatchedwa vinyl chloride resin.PVC inali mankhwala apulasitiki akuluakulu padziko lonse lapansi ndipo amagwiritsidwa ntchito kwambiri.Amagwiritsidwa ntchito kwambiri pomanga, zinthu zamafakitale, zofunikira zatsiku ndi tsiku, zikopa zapansi, njerwa zapansi, zikopa zopanga, zitoliro, waya ndi chingwe, filimu yonyamula, mabotolo, zida za thovu, zida zosindikizira, CHIKWANGWANI ndi zina.Malinga ndi kukula kwa ntchito, PVC akhoza kugawidwa mu: ambiri mtundu PVC utomoni, mkulu polymerization PVC utomoni, mtanda zogwirizana PVC utomoni.General mtundu PVC utomoni aumbike ndi polymerization wa vinilu kolorayidi monoma pansi zochita za initiator;mkulu polymerization PVC utomoni amatanthauza polima dongosolo polymerization;ndi crosslinked PVC utomoni wapangidwa ndi crosslinking wothandizira munali diene ndi polyene mu vinilu kloridi monomer polymerization dongosolo.Malinga ndi kupeza njira ethylene kolorayidi monoma, zikhoza kugawidwa mu kashiamu carbide njira, ethylene njira ndi kunja (EDC, VCM) monomer njira (ethylene njira ndi kunja monoma njira ndi chizolowezi amatchedwa ethylene njira).Malinga ndi njira polymerization, PVC akhoza kugawidwa m'magulu anayi: kuyimitsidwa njira PVC, emulsion njira PVC, chochuluka njira PVC, njira yothetsera PVC.Kuyimitsidwa kwa PVC ndikokolola kwakukulu, komwe kumakhala pafupifupi 80% ya PVC yonse.Kuyimitsidwa njira ya PVC imagawidwa mu zitsanzo zisanu ndi chimodzi: XS-1, XS-2 ..., XS-6;XJ-1, XJ-2..., XJ-6.Tanthauzo la chilembo chilichonse mu chitsanzo: X-kuyimitsidwa njira;Mtundu wa S-wotayirira;Mtundu wolimba wa J.Malinga ndi zomwe zili mu plasticizer, PVC pulasitiki ene pulasitiki nthawi zambiri imagawidwa kukhala: palibe plasticizer PVC, plasticizer zili 0;zolimba PVC, plasticizer zili zosakwana 10%;theka-olimba PVC, plasticizer zili 10-30%;zofewa PVC, plasticizer zili 30-70%;polyvinyl