Methyl vinyl silica gel due to the introduction of a small amount of vinyl in the silica gel macromolecular structure can greatly improve the vulcanization performance of silica gel, so in the current application of silica gel, mostly contain vinyl. Methyl vinyl silica gel is the most versatile silica gel, currently in the production of silica gel at home and abroad in the dominant position. Due to the introduction of unsaturated vinyl in the side chain, its machinability and physical and mechanical properties are better than that of the two-base silica gel. In addition to the general characteristics of dimethyl silica gel, it also has a wide range of temperature, can be in a range of 60 ~ 260℃ to maintain good elasticity, it is easier than the dimethyl silica gel vulcanization, has a small compression permanent deformation, good solvent resistance expansion and high pressure steam resistance stability and excellent cold resistance, etc. And because of the use of low activity of peroxide vulcanization, so as to reduce the vulcanization bubbles and poor rubber stability. Therefore, the general use of methyl vinyl silica gel can be made of larger thickness of products.
Methyl vinyl silica gel is the most widely used variety of silica gel, in recent years, a variety of high performance and special purpose silica gel has been emerging, most of them are based on vinyl silica gel, such as high strength silica gel, low compression permanent deformation silica gel, no need after vulcan silica gel, heat-conductive silica gel and medical silica gel. Methyl vinyl silicone in the aviation industry, widely used as gaskets, sealing materials and fragile, shockproof parts of the protective layer; In the electrical industry can be used as advanced insulating materials such as electronic components, dynamic sealing ring of high temperature potentiometer, sealing ring of underground long-distance communication equipment; In medicine, because of the small physiological reaction of methyl vinyl silicone to the human body, it is used as a plastic surgery, artificial heart valve, blood vessels, etc.