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Wholesale medical grade silicone rubber introduces the basics of silicone rubber
Release time:
2022-01-14 11:47
How much do you know about the basics of silicone rubber? Wholesale medical grade silicone rubber Xiaobian will take you to a brief understanding.
Silicone rubber refers to the rubber whose main chain is composed of alternating silicon and oxygen atoms, and two organic groups are usually connected to the silicon atom. Ordinary silicone rubber is mainly composed of silicone chain units containing methyl groups and a small amount of vinyl groups. The introduction of phenyl can improve the high and low temperature resistance of silicone rubber, and the introduction of trifluoropropyl and cyano groups can improve the temperature and oil resistance of silicone rubber. Silicone rubber has good low temperature resistance and can generally still work at -55°C. After the introduction of phenyl, it can reach -73°C. The heat resistance of silicone rubber is also very outstanding. It can work for a long time at 180 °C, and can withstand a few weeks or longer even if it is slightly higher than 200 °C. It can withstand high temperatures above 300 °C instantaneously. Silicone rubber has good air permeability and oxygen transmission rate is the highest among synthetic polymers. In addition, silicone rubber has outstanding properties of being physiologically inert and not causing coagulation, so it is widely used in the medical field.
The above is the editor of Wholesale medical grade silicone rubber: a brief introduction to the basic knowledge of silicone rubber.
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