1.PVC name is polyvinyl chloride, based on their physical properties, be divided into rigid and flexible, rigid PVC is the most widely used plastic material. From the chemical composition, PVC is a kind of non-crystalline materials, in practice used often by adding stabilizers, lubricants, auxiliary agent, pigment, impact resistance and other additives.
2.PVC good fire performance of materials, high strength, resistance to climate change as well as geometrical stability is also very good, oxidizing agents, reducing agents and strong acids have very strong resistance, but it is easy to be strong oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid corrosion, if contact with aromatic hydrocarbons, chlorinated hydrocarbons may have adverse effects, it is worth attention.
3. PVC characteristics very poor, its process is very narrow in scope, often using small molecular weight PVC material.