Silicone rubber has excellent thermal stability, usually within a 60-260 C can not only maintain a certain degree of softness, resilience and surface hardness, its mechanical characteristics have no obvious change, and can resist long-term thermal aging; Its excellent electrical insulation, weather resistance, ozone resistance and air permeability is unmatched by other materials; It's not toxic and tasteless. Liquid silica gel manufacturers tell you that some special structure of silicone rubber, but also has excellent oil resistance, solvent resistance and radiation resistance, and can be used at high and low temperatures and other characteristics. Silicone rubber sealing ring is one of the products with the characteristics of silicone rubber sealing.
Characteristics of silicone rubber:
One, physiological sui;
Silicone rubber itself has a strong inert performance on the human body. According to relevant experimental studies, silicone rubber has not changed in the human body for decades, showing aging resistance. It is odorless, tasteless and non-toxic, which is one of the ideal materials for cosmetic surgery. It is therefore widely used in the manufacture of medical supplies and materials for cosmetic and plastic surgery as well as in the manufacture of various artificial organs.
Two, high temperature resistance characteristics;
All silicone rubber has the most significant high temperature stability characteristics. It can be used in 250-300'C environments for long periods of time. With the right filler and high-temperature additives, it can be used at temperatures up to 375'C and can withstand temperatures of several thousand degrees instantaneously. It is estimated that silicone rubber has a service life of 20 years at 120'C. Special rubber products also have the characteristics of radiation resistance, such as benzene silicone rubber. Silicon rubber has been widely used in national defense, aviation and science and technology for its outstanding high temperature resistance.
Three, low temperature elasticity;
Four, weather resistance;
Silicone rubber has excellent oxygen resistance, ozone resistance and ultraviolet radiation resistance that other materials can not match. It does not crack when used outdoors for a long time. According to the information, silicone rubber can be used outdoors for more than 20 years.
Five, electrical characteristics;
Silicon rubber has excellent electrical characteristics. Its outstanding advantage is that its dielectric strength, power factor and insulation characteristics are little affected by temperature and frequency changes, such as in a very wide temperature range, dielectric strength basically remains stable; Over a wide frequency range, the permittivity and the tangent of dielectric loss Angle are almost constant. Liquid silicone products tell you that silicone rubber corona resistance and arc resistance is also very good. Its corona life is about 100 times that of TEflon. Times; Arc life is about 20 times that of fluorine rubber. Silicone rubber does not burn easily, and if it does, the resulting silica is still insulating. Therefore, it is suitable for cable outer wrapping material.
6. Physical and mechanical characteristics;
Seven, chemical resistance characteristics;
Viii. Breathable characteristics.