By the combination of rubber products and silicone products, silicone rubber products are now more and more widely used in our lives. For example, wear-resistant rubber tires and massage pads are made of silicone rubber. Like food, such as fresh-keeping boxes, cake boxes are made of silicone rubber products, tasteless, non-toxic and high temperature resistant. What is more suitable than it.

Among many synthetic rubbers, silicone rubber products are the best. It is tasteless and nontoxic. It is not afraid of high temperature and cold. At 300 ℃ and minus 90 ℃, it is calm and has the same strength and elasticity. Silicone rubber also has good electrical insulation, oxygen and aging resistance, light and aging resistance, mould resistance and chemical stability. Because of these excellent properties, silicone rubber plays an important role in modern medicine. In recent years, a variety of silicone rubber medical supplies have been successfully developed by hospitals, scientific research institutions and factories.

Silicone rubber has excellent heat resistance, cold resistance, dielectric property, ozone resistance and atmospheric aging resistance. The outstanding performance of silicone rubber is that it can be used for a long time at - 60 ℃ to + 250 ℃. However, the mechanical properties of silicone rubber, such as tensile strength and tear strength, are poor. At room temperature, its physical and mechanical properties are not as good as most synthetic rubber. The general silicone rubber has poor oil resistance and solvent resistance. Therefore, silicone rubber is not suitable for ordinary conditions, but it is very suitable for many specific occasions.

Silicone rubber products have been widely used in aviation, aerospace, atomic energy, electrical appliances, electronics, instrumentation, automobile, machinery, metallurgy, chemical industry, medical and health care, daily life and other fields due to their excellent comprehensive properties and good technical and economic effects.

Silicone rubber products are based on methyl vinyl silicone rubber, adding reinforcing agent, heat-resistant agent, modifier and other fillers, through mixing, thin pass, filtration, sulfur addition, molding, extrusion, bonding and other production processes. It has the following characteristics:

1. Excellent weather resistance, ozone resistance and ultraviolet radiation resistance, long-term use in outdoor without cracking. It is generally believed that silicone rubber can be used outdoors for more than 20 years.

2. High and low temperature resistance, long-term use at 200 ℃, still elastic at - 60 ℃.

3. Excellent high temperature compression set.

4. With the advantages of good processing performance and easy forming, various products can be made by extrusion hot air vulcanization molding, die addition molding and extension molding.

5. The dielectric properties of silicone rubber are excellent, especially at high temperature. The dielectric strength of silicone rubber is almost not affected by temperature in the range of 20-200 ℃.