Which one is more resistant to aging, thermal silicone sheet or thermal grease?

Thermally conductive silicone sheet is a kind of thermally conductive medium material synthesized by a special process with silica gel as the base material, adding various auxiliary materials such as metal oxides. In the industry, it is also called thermally conductive silicone pad, thermally conductive silicone film, and soft thermally conductive pad. , heat-conducting silicone gaskets, etc., are specially designed for the use of gaps to transfer heat. They can fill the gaps, open up the heat channel between the heat-generating part and the heat-dissipating part, effectively improve the heat transfer efficiency, and also play the role of insulation, shock absorption, Sealing and other functions can meet the design requirements of equipment miniaturization and ultra-thinning. It is extremely manufacturable and usable, and has a wide range of thickness. It is an excellent thermal conductivity filling material. As the filling and bonding between CPU and radiator, thyristor intelligent control module and radiator, transistor and thermistor, high-power electrical module and radiator, and as a mediator for heat conduction, it is convenient for construction and can be molded arbitrarily. Cut punch type, wide range of thickness options, service life of about ten years.

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Thermally conductive silicone grease is commonly known as heat dissipation paste. Thermally conductive silicone grease is made of organic silicone as the main raw material and liquid as the main storage medium, and is added with materials with excellent heat resistance and thermal conductivity to make a thermally conductive silicone grease compound for power amplifiers. , Transistors, tubes, CPU and other electronic components conduct heat and dissipate heat, so as to ensure the stability of electrical performance of electronic instruments and meters. Thermally conductive silicone grease has low thermal resistance and good thermal conductivity, but it is too inconvenient to apply and has a short service life, only about one year.

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Generally speaking, the shape of thermal conductive silicone grease is paste, and it acts as a heat transfer medium for electronic components, which can improve its working efficiency. For example, it is recommended to use thermal conductive silicone grease on the CPU of ordinary desktop computers, because this product has more disassembly and assembly times, so applying thermal conductive silicone grease is more convenient for later operations. The shape of the heat-conducting silicone pad is sheet-like, and they are commonly used in notebook computers or other electronic devices as the contact medium between the heat sink and the package. The function is to reduce the contact thermal resistance and enhance the heat conduction between the package and the heat sink. Thermally conductive silicone sheets are mostly used in some parts where it is inconvenient to apply thermally conductive silicone grease, such as the power supply part of the motherboard. Nice work out.

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Of course, there are many differences between thermal silicone gaskets and thermal grease, such as thermal resistance, thickness, etc. As for which thermally conductive silicone sheet or thermally conductive silicone grease is better, customers can choose to use thermally conductive silicone sheet or thermally conductive silicone grease or other thermally conductive materials according to their own product characteristics and product structure requirements.

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Post time: Apr-10-2023