The thermal conductivity sold on the market There are many kinds of materials, such as thermal pad, thermal paste,phase change material, silicon-free thermally conductive sheet, thermal conductive gel, thermal conductive insulation sheet, carbon fiber thermal conductive gasket, etc., and thermal pad is currently the most used thermal conductive material First, it has many advantages, which can effectively contact the heat source and the radiator with thermal resistance, so that the heat source and the radiator can be in close contact.
Thermal pad is a kind of gap-filling thermal pad made of silicone resin as the base material and added with temperature-resistant and thermal conductive materials. It has the characteristics of high thermal conductivity, low thermal resistance, insulation, compression, etc., because it is more The soft hardness makes it possible to realize a small thermal resistance under low pressure conditions, and at the same time eliminates the air between the contact surfaces and fully fills the rough surface between the contact surfaces. Because of the good filling effect of the thermal conductive silicone sheet, it can effectively conduct the heat of the heat source to the shell, and the thermal pad has good compressibility, and can serve as a shock-absorbing pad.
Thermal conductivity is a parameter that measures the thermal conductivity of a material. In addition to thermal conductivity, thermal resistance also affects the thermal conductivity of thermal pad. There is a saying in the industry: purchase depends on thermal conductivity, engineering depends on thermal resistance , How does the thermal resistance affect the performance of the thermal pad?
The thermal conductivity can be regarded as the size of the water pipe. The larger the thermal conductivity, the thicker the pipe, and the thermal resistance is the scale in the water pipe. The water flow will slow down, which also means that the heat transfer efficiency is reduced. That’s why it is said that in addition to the thermal resistance, the other parameters of the thermal silica gel are the same.
Post time: Feb-26-2024