On the basis of thermal silica gel presentation

　　Basic understanding:
　　Thermal silica gel is a thermal compound, and the characteristics of non-solid, non-conductive can avoid risks such as circuit short circuit. Thermal conductive adhesive sealing silicone rubber is a single component, thermal conductive, room temperature curing silicone adhesive sealant. It is through the condensation reaction of water in the air to release low molecules causing cross-linked curing, and vulcanized into high-performance elastomers. It has the performance of resistance to cold and heat alternations, aging resistance and electrical insulation. And has excellent moisture, seismic, corona resistance, leakage resistance and chemical media resistance. Sustainable use -60? ~ 280°C and maintain performance. It does not swell and has good adhesion to most metal and non-metal materials.
　　Performance advantages:
　　1, the range of thermal conductivity and stability
　　2. Bridge the process tolerance on the structure, reduce the process tolerance requirements of the heat sink and heat dissipation structural parts
　　3, EMC, insulation performance Thermal silica gel has high thermal conductivity, excellent thermal conductivity, good electrical conductivity, wider use temperature, good use stability, low consistency and good construction performance.

　　How to use:
　　The main purpose of the selection of thermal conductive silicone sheet is to reduce the contact thermal resistance between the surface of the heat source and the contact surface of the heat dissipation device. The thermal conductive silicone sheet can fill the gap of the contact surface well and squeeze the air out of the contact surface. The air is a bad conductor of heat, which will seriously hinder the transfer of heat between the contact surface; With the supplement of thermal conductive silicone sheet, the contact surface can be better and fully contacted, truly face-to-face contact, and the reaction in temperature can be as small as possible.
　　The thermal conductivity effect of thermal silica gel is relative, although its thermal conductivity is better in flexible substances, generally in the range of 0.6-1.5W/(m·K), a few properties may be higher, but not more than 2W/(m·K). Compared with water 0.5, vulcanized rubber 0.22, Vaseline 0.184 and so on higher. But 1.5W/(m·K) of cement is no advantage. The thermal conductivity of almost all metals is much higher than that of thermal silica gel. The thermal conductivity of gold, silver and copper in the metal is between 330 and 360, and the thermal conductivity of aluminum is about 200. Thermal conductive silicone itself is not a good conductor of heat, and the role of thermal conductive silicone is to fill the gap between the heat source and the radiator. So the use of thermal silicon is the thinner the better, can apply 0.1-0.5 mm thick thermal silicone to fill the gap, the effect is much better than 1 mm thick silicone sheet.