Radiator for laser display and preparation method of radiator

Abstract

The invention discloses a radiator for laser display and a preparation method of the radiator. The radiator comprises a heat-conducting substrate (1), radiating fins (2) and an ultra-thin composite heat-conducting coating (3), wherein the ultra-thin composite heat-conducting coating is formed by combination of reduced graphene oxide, heat-conducting silver nanoparticles, zinc oxide nanoparticles and a conductive polymer at a certain ratio. The zinc oxide nanoparticles are doped into the reduced graphene oxide; a zinc oxide-graphene composite porous structure is formed through high-temperature reaction; the specific surface area of a film is increased; the radiator has super-high heat conductivity and radiating performance; meanwhile, graphene defects in the film are filled with the doped small-size heat-conducting silver nanoparticles; and the film has a uniform heat-conducting effect; the conductive polymer is doped, so that the viscosity of a heat-conducting film raw material solution is improved; the interface compatibility of the heat-conducting film and the heat-conducting substrate is improved; the film is relatively good in flatness after being prepared; and match with a heat source is improved.

Description

technical field [0001] The invention relates to the field of heat dissipation for electronic components with high calorific value in laser display, in particular to a heat dissipation device for laser display and a preparation method thereof. Background technique [0002] With the rapid development of microelectronics technology, the integration of electronic products in the field of microelectronics is getting higher and higher, and the power consumption is also increasing. Electronic components have a huge impact, which greatly restricts the performance and service life of electronic components, and has become an urgent problem to be solved. [0003] At present, in order to solve the heat dissipation requirements of various high-heat-generating electronic components, metal heat sinks or heat sinks with high thermal conductivity, such as copper and aluminum, are mostly mounted on the surface of electronic components to evenly dissipate the heat inside the electronic compone...

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Problems solved by technology

[0006] The invention provides a method for preparing a heat dissipation device for laser display. By spraying an ultra-thin composite heat conduction coating on the surface of a heat conduction substrate and heat dissipation fins, the complex preparation process and high preparation cost in the prior art are solved. , The specific surface area of ​​the graphene film is small, the thermal conductivity is poor, the adhesion and flatness of the film are poor, and the size of the heat sink and the heat dissipation performance cannot be considered. Technical problems such as

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