When you hear the name of pvc, we will associate with pvc pipe, pvc board, of course, the most important thing is pvc particles. pvc particles are the raw materials for our products. The outstanding performance of materials can help us build more quality products, pvc What are the performance characteristics of the particles that we deserve to be studied? Below, let's talk about it specifically:
The natural color of pvc is the existence of a yellowish translucent and lustrous form. Its transparency is better than that of polyethylene and polypropylene. Of course, it also has different traits due to the different amount of additives, which are soft and hard. Pvc said that it is polyvinyl chloride, which is often made into sheets. Pipes, soles, toys, doors and windows and wire sheaths, stationery, packaging boxes, etc.; so to say, is pvc particles very common in our lives?
Pvc particles are thermoplastic resins formed by polyvinyl chloride under the action of a polymerization agent. The degree of branching of amorphous white powder is small, and the molecular weight of industrially produced pvc is generally in the range of 50,000 to 120,000, which has a large polydispersity. Sex, as the temperature increases, the amount of polymerization of the molecules increases, and the pvc particles at different temperatures exhibit different properties:
1.160～180°C begins to transform into a viscous flow state, with good mechanical properties and excellent dielectric properties;
2.100 ° C or above or after a long period of exposure to the sun, a certain decomposition will occur;
Pvc particles are a variety of amorphous state features, and are therefore widely used!