In terms of building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, and fibers, PVC was the world`s largest production of general-purpose plastics, and its applications are very widely. Widely used in all aspects.
PVC is a white powder with an amorphous structure. The degree of branching is relatively small. The relative density is about 1.4. The glass transition temperature is 77~90°C. It begins to decompose at about 170°C. It has poor stability to light and heat. After prolonged exposure to sunlight, it will decompose to produce hydrogen chloride, and further automatically catalyze the decomposition, causing discoloration, and the physical and mechanical properties also rapidly decline. In actual applications, stabilizers must be added to improve the stability of heat and light.
the Degree of polymerization of SG5 is 1000. usually we also call PVC Resin S1000. Its K-value is K67.
PVC was once the world's largest producer of general-purpose plastics and has been widely used. PVC has two types: hard (sometimes abbreviated as RPVC) and soft. Hard polyvinyl chloride is used for building pipes, doors and windows. It is also used to manufacture plastic bottles, packaging, bank cards, or membership cards. Adding plasticizers can make PVC softer and more elastic. It can be used for pipeline, cable insulation, flooring, signage, phonograph records, inflatable products, and rubber substitutes.