Thermal Silicone Adhesive Performance Should Be So Easy To Understand
Thermal Silicone Adhesive is the most important understanding of its thermal conductivity, breakdown voltage, hardness, and thickness, but simply a parameter will be formed void, thermal conductivity, breakdown voltage, The hardness of the three parameters are electrical parameters, understanding of the intuitive poor, and the thickness of thermal conductivity of silicone film is a physical parameter, easier to grasp and understand. And then The author from the thickness of the choice of other major parameters on the combination of his new explanation to some, and finally, he finally understands how to choose a good Thermal Silicone Adhesive. Here to share this knowledge with everyone, we hope that after you can give better advice!
Thermal Silicone Adhesive with silica gel as the carrier, by adding thermal conductive material and alkali-free glass fiber as the support, rolling by the thin material rolling machine can be filled with a good heat sink and heat sink between the gap, Uneven surface of the air, can form a good heat flow channel, and itself has a good thermal conductivity, is widely used in electrical and electronic products, thermal conductivity material.
Parameter 1, thermal conductivity --- thermal conductivity is the inherent properties of the material and does not change with the thickness of the area changes. In principle, of course, the higher the thermal conductivity the better, of course, the price will be higher out of some, and the market will usually come up with some very exaggerated thermal conductivity, the current thermal conductivity of silicon Thermal Silicone Adhesive range of about 0.8 ~ 4.0 W / MK, Thermal Silicone Adhesive thickness of the current thin film can do 0.1MM, the thickest can be done 15MM, thermal conductivity up to 6.0W / MK. Choosing the appropriate thermal conductivity is good.
Parameters Second, the breakdown voltage --- that is, Thermal Silicone Adhesive can withstand the maximum voltage. The higher the breakdown voltage, the better the insulation of the product. Thermal insulation properties of silicone film, 1mm thickness of the electrical insulation index above 4000 volts.
Parameter three, the hardness of choice --- the harder the product, the thermal contact with the thermal components and thermal components of the contact between the worse. The more contact, but not the softer the better, because too soft, and not easy to paste. In principle, it is not recommended to use Thermal Silicone Adhesive to replace other fixtures, because the double-sided adhesive thermal conductivity is not high, the use of adhesive after the thermal conductivity of silicone film will reduce the overall effect of double-sided adhesive after the effect is even worse The Thermal silicone film due to the reasons for raw materials, itself will bring a weak natural viscosity, but it can not be fixed with.
Finally, the thickness of the choice --- due to the silicone material itself, in principle, a thickness of not less than 0.5mm is better, 0.5mm below the thermal conductivity of silicone film will increase the default glass. Fiberglass itself thermal conductivity in general, increased in the Thermal Silicone Adhesive mainly plays a supporting role in preventing too thin was torn, and easy to install.
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