The difference between ordinary thermal paste and high-end thermal paste

Q:The difference between ordinary thermal paste and high-end thermal paste

A:1、Thermal conductivity is a standard for measuring the thermal conductivity of thermal paste.

2、The viscosity coefficient will affect the ease of application of the thermal paste. If the thermal paste is not sufficiently viscous, it will be difficult to fill the gap between the CPU and the heat sink. If the viscosity is too high, it will be difficult to apply.

3、The degree of oil separation determines the life of the thermal paste. Thermal paste is a mixture. The role of silicone oil is to make the thermal paste have fluidity and fill the gap. If the oil is too high, the thermal paste will dry out easily, causing a gap between the CPU and the heat sink to conduct heat. The area will be reduced, or the medium will react with air, changing properties to reduce performance. Therefore, the method of judging whether the thermal paste is easy to dry can be tested by neutral filter paper. Drop different thermal pastes on the neutral filter paper with the same amount. At the same time, look at the area of the grease (the area wet by the neutral filter paper) precipitated by the neutral filter paper. Which one of the areas is small, then the life of the thermal paste It is relatively long, and the physicochemical properties are more stable.