PVC Plastic Board (hard) Is A Flame Retardant Material

Polyvinyl chloride (PVC) is a kind of thermoplastic material. If different amounts of plasticizers, stabilizers and fillers are added to the formula during processing, it can be made into various forms of hard or soft products. Therefore, the products are divided into two types: rigid polyvinyl chloride and soft polyvinyl chloride. There are chlorine atoms in the polyvinyl chloride molecule (this is different from polyethylene). Due to the dipole effect of the C-Cl bond, the polarity, hardness and rigidity of polyvinyl chloride are greater than polyethylene, and the dielectric constant and dielectric loss are higher. high. Until the glass transition temperature (80℃), the electrical properties still have no change, which proves that the dipole of polyvinyl chloride is very stable, can resist acid and alkali corrosion, and because the molecule contains a large amount of chlorine, it has Certain flame retardancy, but when plasticizers are added, the flame retardancy will be reduced. Rigid polyvinyl chloride board has ideal chemical stability, so it is widely used in the manufacture of various chemical equipment, pipelines, containers, equipment and storage tank linings, when transporting and storing corrosive gases and liquids, especially in the recovery of acid and alkali It is used as an anti-corrosion material in the alkane plant to be processed. And because it has good weather resistance, it is often used as a building material, including water and sewage pipes, waste pipes, fire-proof or fire-resistant simple frames, and the production of various floor and wall materials.

Rigid PVC board: gray, ivory yellow