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Specific Definition Of Silicone Rubber

Silicone rubber is made up of alternating silicon and oxygen atoms in the main chain, silicon atoms are usually connected with two organic groups on rubber. General silicone rubber mainly by methyl Silicon oxygen link and a few vinyl composition.Introduction of phenyl silicone rubber can be improved resistance to high and low temperature performance, trifluoro-propyl of silicone rubber were increased and the introduction of cyano can be temperature-resistant and oil-resistant properties.Low temperature properties of silicone rubber is good, still works at-55 ℃. After the introduction of phenyl-, up-73. Heat resistance of silicone rubber are outstanding, long-term work in a 180 c, slightly above 200 c can take several weeks or moreis still flexible, instantaneous and 300 ° c above the temperature. The permeabilityof silicone rubber, is the highest oxygen permeability synthetic polymers. In addition, the silicone also has physiological features of inert, does not cause blood clotting, so widely used in the medical field.

HTV silicone rubber type (high temperature curing HTV silicone), room temperature Vulcanized (RTV), room temperature curing type-by condensation polymerization and addition reactions. High temperature silicone rubber mainly used in the manufacture of silicone rubber products, room temperature silicone rubber is mainly used as adhesives, potting material or tooling. HTV-the largest amount, heat-curingsilicone (MQ), methyl vinyl silicone rubber (VMQ, dosage, and grade up) PVMQ, methyl phenyl vinyl silicone rubber (resistant to low temperature, radiation), other eyes silicone, fluorosilicone and so on.