Silicone foam is a kind of porous, low-density, compressible foam made of silicone raw rubber, fillers, vulcanization accelerators, styrofoam, etc. polymer elastomers. Because of the high elasticity of silicone rubber and the sound insulation and shock absorption properties of foam materials, it is widely used in daily life, and is mostly used as vibration damping pads, sealing gaskets, sound-absorbing materials, insulating layer materials, and airline insulation materials. According to the cell structure, silicone foam is divided into three types: closed cell type, open cell type and mixed type.
       The closed-cell foamed organic silica gel foam material has good shock-proof cushioning, sound insulation, heat insulation and flame-retardant and explosion-proof properties. It is mainly used in the automotive field for thermal insulation foam pipes for automotive air conditioners, automotive shock absorption, new energy Foamed silicone gaskets for automotive batteries, etc. The interior materials of many automobiles today, such as floors, ceilings, steering wheels, car seats, etc., are all polyurethane foam materials. Because the price of polyurethane foam material is lower. However, polyurethane foam materials have poor weather resistance, are flammable and release a large amount of toxic gases harmful to human body during combustion. Therefore, with the promotion of silicone foam materials and the improvement of people's understanding of them, silicone foam materials are expected to replace traditional polyurethane foam materials in the future.


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