Ko te polyvinyl chloride (PVC) he pūhui i whakapūhuitia mā te monomer vinyl chloride (VCM) i roto i te peroxide, te matū azo me ētahi atu matū whakaoho, i runga rānei i te tikanga whakapūhui rauropi kore utu i raro i te mahi a te mārama me te wera. Ko te homopolymer vinyl chloride me te copolymer vinyl chloride e kiia ana ko te kapia vinyl chloride.
I mua, ko te PVC te kirihou whānui nui rawa atu o te ao, ā, i whānuitia te whakamahinga. He whānuitia te whakamahinga mō ngā rauemi hanga whare, ngā hua ahumahi, ngā mea e hiahiatia ana i ia rā, te hiako papa, ngā taera papa, te hiako horihori, ngā paipa, ngā waea me ngā taura, te kiriata takai, ngā pounamu, ngā rauemi pahuka, ngā rauemi hiri, ngā muka me ērā atu mea.
E ai ki te whānuitanga o te whakamahinga, ka taea te wehewehe i te PVC ki: te kapia PVC whānui, te kapia PVC teitei o te polymerization me te kapia PVC whakawhiti-hono. Ko te kapia PVC whānui ka hangaia mā te polymerization o te monomer vinyl chloride i raro i te mahi a te kaiwhakaoho; Ko te kapia PVC teitei te tohu polymerization e pā ana ki te kapia kua polymerized mā te tāpiri i te kaihoko tipu mekameka ki roto i te pūnaha polymerization monomer vinyl chloride; Ko te kapia PVC whakawhiti-hono he kapia kua polymerized mā te tāpiri i te kaihoko hononga kei roto te diene me te polyene ki roto i te pūnaha polymerization monomer vinyl chloride.
E ai ki te tikanga mō te whiwhi i te monomer vinyl chloride, ka taea te wehewehe ki te tikanga konupūmā carbide, te tikanga ethylene me te tikanga monomer kawemai (EDC, VCM) (i ngā wā o mua, ko te tikanga ethylene me te tikanga monomer kawemai ka kiia ko te tikanga ethylene).
Wā tuku: Mei-07-2022