What are the characteristics of PVC?
attention:175 answer:1 offer a reward:0
Away from the problem with
- Unsolveddestoon
- 2021-08-01 19:17
Best answer
No best answer
All the answers
- 1Flooranonymity
- 2021-08-03 08:32
1. Rigid PVC is one of the most widely used plastic materials. PVC material is a non-crystalline material.
2.PVC materials are often added with stabilizers, lubricants, auxiliary processing agents, pigments, anti-impact agents and other additives in actual use.
3.PVC material has non-flammability, high strength, weather resistance and excellent geometric stability.
4. PVC has strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.
5.The melting temperature of PVC during processing is a very important process parameter. If this parameter is improper, it will cause the problem of material decomposition.
6.The flow characteristics of PVC are quite poor, and its process range is very narrow. Especially the high molecular weight PVC material is more difficult to process (this kind of material usually needs to add lubricant to improve the flow characteristics), so the PVC material with small molecular weight is usually used.
7.The shrinkage rate of PVC is quite low, generally 0.2~0.6%.
2.PVC materials are often added with stabilizers, lubricants, auxiliary processing agents, pigments, anti-impact agents and other additives in actual use.
3.PVC material has non-flammability, high strength, weather resistance and excellent geometric stability.
4. PVC has strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.
5.The melting temperature of PVC during processing is a very important process parameter. If this parameter is improper, it will cause the problem of material decomposition.
6.The flow characteristics of PVC are quite poor, and its process range is very narrow. Especially the high molecular weight PVC material is more difficult to process (this kind of material usually needs to add lubricant to improve the flow characteristics), so the PVC material with small molecular weight is usually used.
7.The shrinkage rate of PVC is quite low, generally 0.2~0.6%.