PVC RESIN SG3/SG5/SG8

Polyvinylchloride (PVc) is a polymer formed by free radical polymerization of vinylchloride monomer (VCM) Vinyl chloride homopolymer and vinyl chloride copolymer are called vinyl chloride resin. The molecular weight of industrial PvC is generally in the range of 50,000 ~ 110,000, with a largepolydispersity, molecular weight increases with the decrease of polymerization temperature, there is no fixedmelting point, 80 ~ 85 " C begins to soften, 130 ° C becomes viscoelastic state, 160 ~ 180 ° C begins to changeinto viscoelastic state; It has good mechanical properties, tensile strength of about 6OMPa, impact strength 5 ~10kJ/m2; It has excellent dielectric properties. PVC is one of the largest general-purpose plastics in the world and is widely used. In building materials in dustrial products, daily necessities, floor leather, foor tiles, artificial leather, pipe, wire and cable, packagingfilm, bottles, foam materials, sealing materials, fibers and other aspects are widely used.