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Graphene heat dissipation coating - let the equipment "cool down"

Graphene heat dissipation coating - let the equipment "cool down"

  • Categories:Industry News
  • Author:
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  • Time of issue:2022-07-27
  • Views:926

(Summary description)Graphene is a two-dimensional carbon material composed of carbon atoms with a thickness of only a single layer of atoms, and is known as the "king of new materials". Compared with other carbon materials, graphene has a perfect large π-conjugated system and the thinnest single-layer atomic thickness structure, which enables graphene to exhibit excellent and remarkable optical, electrical, thermal, and mechanical properties, including High electrical conductivity (electron mobility up to 2×105 cm2/(V·s)), high strength (Young’s modulus up to 1 TPa), high thermal conductivity (5300W/(m·K) at room temperature), extremely high The surface area (2630 m2/g), excellent thermal stability, strong hydrophobicity and other properties make it have a good application prospect in the field of functional coating materials.

Graphene heat dissipation coating - let the equipment "cool down"

(Summary description)Graphene is a two-dimensional carbon material composed of carbon atoms with a thickness of only a single layer of atoms, and is known as the "king of new materials". Compared with other carbon materials, graphene has a perfect large π-conjugated system and the thinnest single-layer atomic thickness structure, which enables graphene to exhibit excellent and remarkable optical, electrical, thermal, and mechanical properties, including High electrical conductivity (electron mobility up to 2×105 cm2/(V·s)), high strength (Young’s modulus up to 1 TPa), high thermal conductivity (5300W/(m·K) at room temperature), extremely high The surface area (2630 m2/g), excellent thermal stability, strong hydrophobicity and other properties make it have a good application prospect in the field of functional coating materials.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-07-27
  • Views:926
Information

Graphene is a two-dimensional carbon material composed of carbon atoms with a thickness of only a single layer of atoms, and is known as the "king of new materials". Compared with other carbon materials, graphene has a perfect large π-conjugated system and the thinnest single-layer atomic thickness structure, which enables graphene to exhibit excellent and remarkable optical, electrical, thermal, and mechanical properties, including High electrical conductivity (electron mobility up to 2×105 cm2/(V·s)), high strength (Young’s modulus up to 1 TPa), high thermal conductivity (5300W/(m·K) at room temperature), extremely high The surface area (2630 m2/g), excellent thermal stability, strong hydrophobicity and other properties make it have a good application prospect in the field of functional coating materials.

Heat dissipation paint is a functional paint that improves the heat dissipation efficiency of the object surface by enhancing the infrared emissivity of the surface of the heat source. There are three main ways of heat transfer, namely heat conduction, heat convection and heat radiation. The heat conduction method is mainly to quickly export the heat generated by the electronic device to the surface of the radiator of the electronic product, and the heat convection and heat radiation mainly dissipate the heat from the surface of the radiator to the air. In many fields that require efficient heat dissipation, due to the constraints of space, size and environment, accelerated convection cannot be used to exchange heat. Therefore, enhancing infrared radiation heat dissipation through coating technology is the preferred solution and an important way to improve the heat dissipation performance of the radiator.

heat transfer method

Graphene has very high thermal conductivity and strong emissivity. The thermal conductivity of single-layer graphene can reach 5300 W/m K, and the thermal radiation emissivity is 0.99 in the infrared range. Therefore, graphene as a thermal radiation heat dissipation material has huge potential. The graphene heat-dissipating coating prepared with graphene as raw material can exert its excellent heat conduction and infrared radiation functions at the same time. The heat exchange efficiency reduces the surface and internal temperature of the object.

Graphene heat radiation heat dissipation principle

Hefei Vigon Materials R&D team completely independently developed a high temperature resistant graphene heat radiation heat dissipation coating. Its core material, graphene, has good thermal conductivity, anticorrosion and mechanical properties. It can be used for a long time in the environment above 500 ℃ without falling off, yellowing, cracking and other phenomena. The graphene added in the coating improves the infrared heat radiation effect of the coating film, and also improves the heat dissipation performance of the parts after painting, and also significantly improves the corrosion resistance and high temperature resistance of the parts. The graphene material itself is non-toxic and harmless, which can reduce or replace the use of inorganic fillers in traditional coatings, enhance heat dissipation and reduce costs. Graphene heat dissipation coating is suitable for spraying, brushing, dipping and other coating methods on the surface of radiators or polymer materials such as metal, ceramics, glass, etc., to improve the heat dissipation effect of the radiator.

Compare experimental data

Graphene heat dissipation coatings have rich usage scenarios and can be widely used in high-power LED radiators, heat pipes, CPU radiators, skirting heaters, radiators, industrial equipment heat dissipation, auto parts heat dissipation and other fields.

Product Specifications of Thermal Coatings

Advantages of graphene heat dissipation coatings: high radiation heat dissipation, super wear resistance, excellent aging resistance, excellent chemical corrosion resistance, various construction methods.

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