The application principle of thermal conductive silicone pads

Release time：2024-04-22    Click：25

Thermal conductive silicone pad is a new product developed in the market of heat dissipation adhesive. It is mainly made of silicone to reduce the contact thermal resistance between the heat source surface and the contact surface of the heat sink component. Specially designed to transfer heat through gaps, it is an excellent thermal conductive filling material that completes the heat transfer between the heating and cooling parts. The application of thermal conductive silicone pads is also very extensive. As long as it is mechanical, it will generate heat during braking. This type of thermal conductive silicone pad is mostly developed for precision machinery. With the advancement of technology, traditional heat dissipation adhesives can no longer meet the heat dissipation needs of precision instruments. 

The main purpose of using thermal conductive silicone pads is to reduce the contact thermal resistance between the surface of the heat source and the contact surface of the radiator components. Thermal conductive silicone pads can also effectively fill the gaps between the contact surfaces, squeezing air out of them. Air is a poor conductor of heat, which seriously hinders the transfer of heat between contact surfaces; With the addition of thermal conductive silicone pads, the contact surface can be better and fully contacted, truly achieving face-to-face contact. The reaction at temperature can achieve as small a temperature difference as possible, and the thermal conductivity effect of the thermal conductive silicone pad is relatively good. Although its thermal conductivity performance is better in flexible materials, generally in the range of 0.6-1.5W/(m · K), a few properties may be higher, but they do not exceed 2W/(m · K).

In fact, thermal conductive silicone pads have been widely used in various electronic products and electrical equipment as the contact surface between heating elements (power tubes, thyristors, electric heating stacks, etc.) and heat dissipation facilities (heat sinks, heat strips, shells, etc.), playing a role as heat transfer media and providing performance such as moisture, dust, corrosion, and shock resistance. Suitable for heat dissipation treatment of various microwave devices such as microwave communication, microwave transmission equipment, microwave dedicated power supplies, voltage stabilizing power supplies, etc. 

Therefore, thermal conductive silicone pads developed on the basis of traditional methods have great market prospects. Thermal conductive silicone pads belong to a high-end thermal conductive compound, and their non solid and non-conductive properties can avoid risks such as circuit short circuits; Its high bonding performance and super strong thermal conductivity are currently the best thermal conductivity solutions for CPUs, GPUs, and heat sinks when in contact.