What is polyvinyl chloride pvc do you know

What is polyvinyl chloride pvc do you know

Polyvinyl chloride pvc, abbreviated as PVC in English, is a polymer of vinyl chloride monomer polymerized by peroxide, azo compound and other initiators or under the action of light and heat according to the mechanism of free radical polymerization. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins.

Polyvinyl chloride pvc is a white powder with an amorphous structure, with a small degree of branching, a glass transition temperature of 77~90 °C, and begins to decompose at about 170 °C. It has poor stability to light and heat. It will decompose to produce hydrogen chloride, and further autocatalytic decomposition, causing discoloration, and rapid decline in physical and mechanical properties. In practical applications, stabilizers must be added to improve thermal and light stability.

Polyvinyl chloride pvc was once the largest general-purpose plastic in the world, and it is widely used. It is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foam materials, sealing materials, fibers, etc.