Silicone rubber sheet is currently one of the most widely used products in the electronics industry. It is mainly used for sensing and conducting heat, and is one of the best materials selected specifically for using gaps to transfer heat. During use, it can not only fill gaps and connect heating and cooling parts, but also effectively improve the efficiency and stability of the heat transfer system. It also uses silicone material to provide insulation, shock absorption, sealing, and protection, which can meet the needs of various small and medium-sized electronic devices with good thermal conductivity systems. It is currently a relatively traditional type of thermal filling material.

However, in actual use, different product quality problems also arise, among which the more common ones are the failure of thermal conductivity sensors and the decrease in product aging life. Among these problems, aging life is the main factor. So, what are the phenomena that affect the service life of thermal conductivity silicone sheets?

What does "aging and hardening" of thermal pads refer to?
During the use of organic silicon thermal conductive gaskets, the hardness will increase due to long-term exposure to high temperatures, which will seriously affect the effectiveness and service life of the gasket, and also cause damage to electronic and electrical equipment.

What are the hazards of later hardening of thermal pads?
Due to the fact that such thermal conductive materials are often used in precision and complex electronic and electrical products, the common hazards in the event of such problems are as follows:
1. After the gasket becomes hard, it is not only inconvenient for construction, but also reduces the adhesion, seriously increases the thermal resistance, and reduces the heat dissipation effect.
2. After construction, the gasket becomes hard, and it is easy for the gasket to crack or even powder, which shortens the lifespan of the gasket and seriously reduces the heat dissipation effect.
3. In the later stage of hardening, there may be separation between the gasket and the protected components, resulting in direct exposure of the components. This can easily cause product short circuits, thermal oxidation, rust, etc., affecting the lifespan of the components.

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