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  • Have you ever seen a “transformable” thermal pad?
  • Have you ever seen a “transformable” thermal pad?

    Date:2020-04-23 

    The common thermal conductive materials on the market are mainly needle-shaped thermal conductive paste and sheet-shaped thermal conductive silicone sheet. Both have their own characteristics. For example, the thermal conductive silicone sheet is convenient for cutting and attaching, but the thermal conductivity is not enough. The thermal paste is convenient for secondary work. The thermal conductivity is better than that of the thermal silica gel sheet, but the operation is not convenient. , The following is the introduction of today's recommendation by the editor: thermally conductive phase change materials.

    Thermally conductive phase change materials refer to substances that change shape with temperature and can provide latent heat. The process of a phase change material changing from a solid state to a liquid state or a liquid state to a solid state is called a phase change process, and the characteristic of a phase change material is that it will change from a solid state to a liquid state within a certain temperature range.

    Thermally conductive phase change materials are solid at room temperature and easy to operate. When the temperature reaches the specified range, they will become soft and fluid. This ability to completely fill the interface air gap and the gap between the device and the heat sink makes the phase change pad excellent. For non-flowing elastomers or graphite-based thermal pads, and to obtain properties similar to hot grease, it can fill the tiny pits in the gaps to maximize thermal conductivity.

    When choosing a thermal conductive material, people generally consider the price, the required thermal conductivity, and the required area as the main considerations, but they often ignore the characteristics of the thermal conductive material itself. Thermally conductive silicone sheet, as one of the classic thermal conductive materials, is loved by people, but because it is a solid, it cannot maximize the efficiency of heat conduction between the heat source and the heat sink; the second thermal paste is also one of the classic thermal conductive materials , It can fill the tiny pits in the gap and improve the heat transfer efficiency, but it is liquid and inevitably has the situation of penetration and fluidity. The thermally conductive phase change material combines the characteristics of the two well. When the temperature of the body rises to a specific temperature, it changes from a solid sheet to a fluid, increasing the thermal conductivity between the heat source and the heat sink to prevent damage from excessive temperature. Electronic components, but when the body stops operating, it returns to a solid sheet, reducing unnecessary wear and penetration.

    As a new type of thermally conductive material, thermally conductive phase change materials are divided into two types: thermally conductive phase change sheets and thermally conductive phase change pastes, which can be selected according to customer needs. The characteristics and advantages of thermally conductive phase change materials gradually attract people's attention. However, when customers first contact with thermally conductive phase change materials, they can consult our Sheen product manager to customize for them.
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