PVC also is called polyvinylchloride, many products are made of PVC in our daily life such as chairs, bottles of drinks, PVC labels on shoes and so on.

In fact, the nature color of PVC is slightly yellow translucent and shiny. Transparency is better than polyethylene, polypropylene, worse than polystyrene. With different amount of additives, there are soft PVC, hard PVC, soft products, soft and tough, sticky feel, hardness of hard products than low-density polyethylene, but lower than the polypropylene inflection at will appear bleaching. The common products are plates, tubes, shoe soles, soft PVC labels, toys, doors and windows, wire and sheath, stationery and so on. A method of using a chlorine atom substituted for one hydrogen atom in the polyethylene polymer material. Why PVC material is widely used in various industries?

PVC is made from thermoplastic resin by polymerization of vinyl chloride in the role of initiator. It’s a vinyl chloride homopolymer. The vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as the vinyl chloride resin. PVC is a white powder with an amorphous structure, a small degree of branching. The industrial production of the PVC molecular weight is generally within the range of from 50,000 to 12 million, and has a larger polydispersity increased molecular weight with the polymerization temperature decreases. But the stability to light and heat is poor, and above 100 ℃ or by prolonged exposure to sunlight, it will decompose to generate hydrogen chloride, and further automatic catalytic decomposition, discoloration, physical and mechanical properties are rapidly decreased in the practical application, must be added to a stable agent to improve the stability to heat and light. PVC is very hard, it’s unworkable to make toys, PVC labels, the solubility is also poor, only dissolved in cyclohexanone, dichloroethane and tetrahydrofuran, etc., a few solvent, both organic and inorganic acids, alkali and salt stability, and chemical stability with the use of elevated temperature decreased. PVC was dissolved in acetone - carbon disulfide or acetone - benzene mixed solvent used in dry spinning or wet spinning made ​​fibers, said polyvinyl chloride fiber. Flame retardant, acid and alkali, anti-microbial, wear-resistant and has good thermal and elastic.