Polyvinyl chloride (PVC) o se polymer polymerized e vinyl chloride monomer (VCM) i peroxide, azo compound ma isi initiators pe tusa ai ma le free radical polymerization mechanism i lalo o le gaioiga o le malamalama ma le vevela.Vinyl chloride homopolymer ma vinyl chloride copolymer o loʻo taʻua faʻatasi o le vinyl chloride resin.
O le PVC sa avea muamua ma palasitika sili ona tele i le lalolagi, lea sa fa'aaogaina lautele.E faʻaaogaina lautele i mea faufale, oloa gaosi oloa, mea e manaʻomia i aso taʻitasi, paʻu fola, fola fola, paʻu faʻapitoa, paipa, uaea ma uaea, afifiina ata, fagu, mea faʻafefe, mea faʻamaufaʻailoga, filo ma isi.
E tusa ai ma le lautele o talosaga, e mafai ona vaevaeina le PVC i: faʻamoemoega lautele PVC resin, maualuga maualuga o polymerization PVC resin ma fesoʻotaʻiga PVC resin.O le fa'amoemoega lautele o le PVC resin e faia e ala i le polymerization o le vinyl chloride monomer i lalo o le gaioiga a le initiator;High polymerization tikeri PVC resin e faasino i le resin polymerized e ala i le faaopoopoina o filifili tuputupu aʻe sui i vinyl chloride monomer faiga polymerization;Crosslinked PVC resin o se resin polymerized e ala i le faaopoopo crosslinking sui o loo i ai diene ma polyene i le vinyl chloride monomer polymerization system.
E tusa ai ma le auala o le mauaina o le vinyl chloride monomer, e mafai ona vaevaeina i le calcium carbide method, ethylene method and imported (EDC, VCM) monomer method (aga masani, ethylene method and imported monomer method is collectively mention as ethylene method).
Taimi meli: Me-07-2022