Polyvinyl chloride (PVC) is the initiator of peroxides and azo compounds in vinyl chloride monomer (VCM). And it's also a polymer that formed under the action of light and heat according to the mechanism of free radical polymerization. Vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resin.
PVC is a white powder with amorphous structure which is used widely. It is widely used in building materials, industrial products, daily necessities, floor leather, floor brick, artificial leather, pipe, wire and cable, packaging film, bottle, foaming material, sealing material, fiber and so on.