Ko te Polyvinyl chloride, PVC, he polymer i hangaia e te vinyl chloride monomer (VCM) i roto i te peroxide, te azo pūhui, te tikanga polymerization ranei o te polymerization tuwhena i raro i te marama me te wera.Ethylene chloride homopolymer me te vinyl chloride copolymer system e kiia ana ko te vinyl chloride resin.Ko te PVC te hua kirihou whaihua nui rawa atu o te ao, a, e whakamahia nuitia ana.Kei te whakamahia nuitia i roto i nga taonga hangahanga, nga hua ahumahi, nga mea e hiahiatia ana i ia ra, te hiako papa, te pereki papa, te hiako horihori, te taputapu paipa, te waea me te taura, te kiriata kapi, nga pounamu, nga taonga pahuka, nga taputapu hiri, te muka me etahi atu waahanga.E ai ki te whānuitanga rereke o te tono, ka taea te wehea te PVC ki: momo PVC kapia, polymerization teitei PVC kapia, ripeka-hono PVC kapia.Ko te kapia PVC momo whanui ka hangaia e te polymerization o te monomer vinyl chloride i raro i te mahi a te kaitakawaenga;polymerization teitei PVC kapia e pā ana ki te waerau o te pūnaha polymerization;me te kapia PVC hono-whakawhiti he mea tito mai i tetahi kaihoko honohono kei roto te diene me te polyene i roto i te punaha polymerization monomer vinyl chloride.E ai ki te tikanga hoko o te ethylene chloride monomer, ka taea te wehea ki te tikanga konupūmā carbide, tikanga ethylene me te kawemai (EDC, VCM) tikanga monomer (ethylene tikanga me te tikanga monomer kawemai e kiia ana ko te tikanga ethylene).E ai ki te tikanga polymerization, ka taea te wehewehea te PVC ki nga waahanga e wha: te tikanga whakatārewatanga PVC, te tikanga whakaehunga PVC, te tikanga nui o te PVC, te tikanga otinga PVC.Ko te PVC whakatarewa te hua nui rawa atu, e 80% o te katoa o te PVC.Ko te tikanga whakatārewatanga o te PVC ka wehea kia ono nga tauira: XS-1, XS-2..., XS-6;XJ-1, XJ-2..., XJ-6.Ko te tikanga o ia reta i roto i te tauira: X-whakarewa tikanga;S-momo wewete;Momo J-tight.E ai ki te ihirangi o te plasticizer, PVC kirihou ene kirihou maha wehea ki: kahore plasticizer PVC, plasticizer ihirangi ko 0;PVC pakeke, he iti iho i te 10% te ihirangi plasticizer;PVC āhua-pakeke, ihirangi plasticizer o 10-30%;PVC ngohengohe, ihirangi plasticizer o 30-70%;polyvinyl
Wā tuku: Hūrae-29-2022