Polyvinyl chloride

Polyvinyl chloride, PVC, o se polymer na faia e le vinyl chloride monomer (VCM) i peroxyide, azo compounds poʻo le faiga polymerization o polymerization radical i lalo o le malamalama ma le vevela.Ethylene chloride homopolymer ma vinyl chloride copolymer system e taʻua o le vinyl chloride resin.O le PVC sa avea muamua ma oloa palasitika sili ona tele i le lalolagi ma ua fa'aaogaina lautele.E faʻaaogaina lautele i mea faufale, oloa gaosi oloa, mea e manaʻomia i aso taʻitasi, paʻu fola, piliki fola, paʻu faʻapitoa, mea paipa, uaea ma uaea, afifiina ata, fagu, mea faʻafefe, mea faʻamaufaʻailoga, fiber ma isi vaega.E tusa ai ma le eseesega lautele o le talosaga, e mafai ona vaevaeina PVC i: ituaiga lautele PVC resin, maualuga polymerization PVC resin, cross-sootai PVC resini.ituaiga lautele PVC resin ua faia e le polymerization o le vinyl chloride monomer i lalo o le gaioiga a le initiator;maualuga polymerization PVC resin e faatatau i le polymer o le faiga polymerization;ma le resini PVC feso'ota'i fa'asagatau o lo'o tu'ufa'atasia i se so'o feso'ota'iga o lo'o i ai le diene ma le polyene i le vinyl chloride monomer polymerization system.E tusa ai ma le auala o le mauaina o le ethylene chloride monomer, e mafai ona vaevaeina i le calcium carbide auala, auala ethylene ma faaulufale mai (EDC, VCM) auala monomer (ethylene auala ma faaulufale mai monomer auala e masani ona taʻua o le ethylene auala).E tusa ai ma le auala polymerization, e mafai ona vaevaeina le PVC i ni vaega se fa: auala faʻamalolo PVC, auala emulsion PVC, auala tele PVC, auala fofo PVC.O le fa'amalologa PVC o le fua tele lea, e tusa ma le 80% o le PVC atoa.Auala faʻamalolo o le PVC ua vaevaeina i ni faʻataʻitaʻiga e ono: XS-1, XS-2 ..., XS-6;XJ-1, XJ-2..., XJ-6.Le uiga o mataitusi taʻitasi i le faʻataʻitaʻiga: X-suspension method;S-ituaiga tatala;Ituaiga J-futi.E tusa ai ma le anotusi o plasticizer, PVC palasitika ene palasitika e masani ona vaevaeina i: leai plasticizer PVC, plasticizer anotusi o le 0;PVC malosi, mea fa'apipi'i e itiiti ifo i le 10%;PVC semi-malosi, mea faʻapipiʻi faʻapipiʻi o le 10-30%;PVC vaivai, mea faʻapipiʻi faʻapipiʻi o 30-70%;polyvinyl