Polyvinyl chloride (PVC) ndi polima yomwe imapangidwa ndi vinyl chloride monomer (VCM) mu peroxide, azo compound ndi zina zoyambitsa kapena malinga ndi njira ya free radical polymerization pogwiritsa ntchito kuwala ndi kutentha. Vinyl chloride homopolymer ndi vinyl chloride copolymer zonse zimatchedwa vinyl chloride resin.
PVC inali pulasitiki yaikulu kwambiri padziko lonse lapansi, yomwe inkagwiritsidwa ntchito kwambiri. Imagwiritsidwa ntchito kwambiri pa zipangizo zomangira, zinthu zamafakitale, zofunikira za tsiku ndi tsiku, chikopa cha pansi, matailosi a pansi, chikopa chochita kupanga, mapaipi, mawaya ndi zingwe, filimu yolongedza, mabotolo, zipangizo zotulutsa thovu, zipangizo zotsekera, ulusi ndi zina zotero.
Malinga ndi ntchito zosiyanasiyana, PVC ingagawidwe m'magulu awa: utomoni wa PVC wogwiritsidwa ntchito kwambiri, utomoni wa PVC wopangidwa ndi utomoni wolumikizidwa ...
Malinga ndi njira yopezera vinyl chloride monomer, ikhoza kugawidwa m'magulu awiri: njira ya calcium carbide, njira ya ethylene ndi njira ya imported (EDC, VCM) monomer (mwachikhalidwe, njira ya ethylene ndi njira ya imported monomer zimatchedwa njira ya ethylene).
Nthawi yotumizira: Meyi-07-2022