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 at -90 ℃ (or lower temperature) to +300 ℃ (or higher temperature) for a long time. However, the mechanical properties of tensile strength and tear strength of silicone rubber are poor. Its physical and mechanical properties are not as good as most synthetic rubbers at room temperature. Besides nitrile silicone and fluorosilicone rubber, the general silicone rubber has poor oil resistance and solvent resistance. Therefore, silicone rubber is not suitable for field cooperation under ordinary conditions, but it is very suitable for many specific occasions.
It is worth mentioning that polymer materials play a very important role in biomedical engineering, and silicone rubber is a particularly important class of medical polymer materials. It has excellent physiological inertia, non-toxic, tasteless, non-corrosive, anticoagulant, good compatibility with the body, and can withstand harsh disinfection conditions. It can be processed into pipes, sheets, films and special-shaped components according to needs, and can be used as medical devices, artificial organs, etc. At present, there are special medical grade silicone rubber at home and abroad.