Is the thermal conductivity of thermal grease the higher the better?

The higher the thermal conductivity of the thermal conductivity of the thermal grease, the better, the problem is not absolute, but needs to be evaluated according to the specific application scenarios and needs. The importance of thermal conductivity.

Thermal conductivity is an important index to measure the thermal conductivity of a material, which represents the heat passing through a unit area per unit time under a unit temperature gradient per unit thickness. For thermal grease, the higher the thermal conductivity, the stronger its thermal conductivity, the faster it can conduct heat and improve heat dissipation efficiency.

influence factor

However, when choosing thermal grease, in addition to thermal conductivity, the following factors need to be considered:

1. Adhesion performance: The adhesion performance of thermal grease will affect its fixing effect in practical applications. If the adhesion performance is poor, it is easy to wear out in a high temperature environment, which leads to the falling off of the metal sheet and affects the thermal conductivity effect.

2. Temperature resistance: The temperature resistance of thermal grease will directly affect its stability and heat transfer effect in high temperature environment. If the thermal grease is unstable under high temperature conditions, it is easy to cause problems such as viscosity reduction, and may endanger the safety of electronic components and other equipment.

3. Cost: The price of thermal grease covers many factors such as material preparation, processing technology and production process. In the selection, we need to consider the balance between cost and performance.

application scenarios

1, High-performance equipment: For devices requiring high heat dissipation performance (such as high-performance cpus, Gpus, etc.), choose thermal grease with high thermal conductivity can more effectively reduce the temperature and improve the stability and life of the device.

2, Space limited equipment: In some space limited equipment (such as mobile phones, tablets, etc.), it may not be possible to install a large area of heat sink or fan, at this time, choose a high thermal conductivity of thermal grease can make up for the lack of heat dissipation.

3, General application: for some equipment or application scenarios with low heat dissipation requirements (such as small household appliances, industrial control equipment, etc.), you can choose a thermal conductive silicone grease with moderate thermal conductivity and more affordable.

Conclusion

In summary, the thermal conductivity of thermal grease is not the higher the better, but needs to be selected according to the specific application scenarios and needs. In the selection, need to consider the thermal conductivity, adhesion performance, temperature resistance, cost and other factors to find the most suitable for their needs.