Thermal silica gel refers to a type of silica gel formed by adding a specific conductive filler on the basis of silicone rubber. Such adhesives generally include thermally conductive silicone adhesives, thermally conductive silicone potting materials, thermally conductive silicone sheets and thermally conductive silicone pads that have been vulcanized into a certain shape. The thermal conductivity of different thermal silica gels varies greatly. The cost price is also very different (but if insulation is not required, the manufacturing cost can be greatly reduced and a high thermal conductivity can be achieved). Ordinary thermal silica gel is added with aluminum oxide, etc., and high thermal silica gel is added with thermally conductive materials such as boron nitride.
What is silica gel? Literally, silica gel is a porous solid silica material with a large specific area. Silica gel is an amorphous substance and is a highly active adsorbent material. Compared with other similar materials, silica gel has many advantages, such as high adsorption performance, stable chemical properties (except for strong alkali and strong acid, it does not react with any substance), good thermal stability, and high mechanical strength. Silica gel can be divided into: macroporous silica gel, B-type silica gel, coarse pore silica gel, fine pore silica gel; according to its composition and shape are divided into extruded silica gel and molded silica gel; according to its nature and composition can be divided into organic silica gel and Two types of inorganic silica gel.