Ibicuruzwa

Polyvinyl chloride (Polyvinyl chloride), mu magambo ahinnye y’icyongereza PVC, ni polymer ya vinyl chloride monomer (VCM) polymerized na peroxide, azo compound hamwe nabandi batangiza cyangwa munsi yumucyo nubushyuhe ukurikije uburyo bwa polymerisation yubusa..Vinyl chloride homopolymers na vinyl chloride copolymers hamwe hamwe bita vinyl chloride resin.

PVC ni ifu yera ifite imiterere ya amorphous ifite urwego ruto rwishami.Ubushyuhe bwikirahure ni 77 ~ 90 ° C, kandi butangira kubora nka 170 ° C.Guhagarara kumucyo nubushyuhe ni bibi.Hejuru ya 100 ° C cyangwa nyuma yizuba ryizuba rirerire, bizangirika kubyara hydrogène chloride, hamwe no kwangirika kwa autocatalytic, bitera ibara no kugabanuka byihuse kumiterere yumubiri nubukanishi.Mubikorwa bifatika, stabilisateur igomba kongerwaho kugirango itezimbere ubushyuhe numucyo.

Uburemere bwa molekuline ya PVC yakozwe ninganda muri rusange iri hagati ya 50.000 na 110.000.Ifite polydispersity nini.Uburemere bwa molekile bwiyongera hamwe no kugabanuka kwubushyuhe bwa polymerisation., 160 ~ 180 ℃ yatangiye guhinduka muburyo butagaragara;ibikoresho byiza bya mashini, imbaraga zingana zingana na 60MPa, imbaraga zingaruka za 5 ~ 10kJ / m²;ibintu byiza bya dielectric.

PVC yahoze ari plastiki nini nini-rusange muri rusange, kandi irakoreshwa cyane.Ikoreshwa cyane mubikoresho byubwubatsi, ibicuruzwa byinganda, ibikenerwa bya buri munsi, uruhu rwo hasi, amabati hasi, uruhu rwubukorikori, imiyoboro, insinga ninsinga, firime zipakira, amacupa, ibikoresho bya kopi, ibikoresho bifunga, fibre, nibindi.