What is special about the thermal phase change film?

Thermally conductive phase change sheet is one of many thermally conductive materials and a new thermally conductive material in recent years. Thermally conductive phase change sheet has also attracted people’s attention as a new type of thermally conductive material. It acts on the power consuming electronic device and the heat sink connected to it to reduce the thermal resistance to a very small value. This thermal resistance is small. The channel makes the performance of the heat sink better, and improves the reliability of microprocessors, memory modules, DC/DC converters and power modules, and is widely used in the field of high-performance chips.

The thermally conductive phase change sheet is a solid material at room temperature and is easy to handle. It can be used as a gasket and firmly used on the surface of a heat sink or electronic device. When the electronic device reaches the specified phase change temperature end, the phase change material becomes soft. At this time, as long as a little tightening force is applied, the material can easily integrate the two surfaces like a thermal paste. The ability to completely fill the interface air gap and the gap between the electronic device and the heat sink makes the phase change material superior to non-flowing elastomers or thermally conductive gaskets, and obtains performance similar to thermally conductive silicone grease.

Thermally conductive phase change film is different from thermally conductive silicone film and thermally conductive paste, which has a wider reputation, but its many advantages have made people pay attention and application. So what are the advantages of thermally conductive phase change film?

The main advantage of the thermally conductive phase change sheet is its phase change characteristics. In the phase change temperature range, the thermally conductive phase change sheet will soften into a semi-flowing paste, and when the temperature returns to normal, it will return to a solid flake shape, which is convenient People manually or machine automatically mount and facilitate the second resumption of work.

In addition to the major feature of phase change, thermally conductive phase change film has low thermal resistance as one of its main advantages. Thermal resistance is to hinder the transfer rate of heat in the thermally conductive material, and thermally conductive phase change film can exert the performance of thermally conductive silicone grease during work. , It greatly reduces the thermal resistance and improves the heat conduction effect. Under low pressure, it can completely fill the pits of the gap, remove the gap air, reduce the thermal resistance between the heat source and the radiator, and improve the heat conduction effect.

It is often said in the field of thermal conductive materials that: purchase depends on thermal conductivity, engineering depends on thermal resistance. Thermal resistance affects the thermal conductivity of thermally conductive materials. The advantage of thermally conductive phase change films lies in their low thermal resistance, so thermally conductive phase change films have a more promising future market application. broad.