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Graphene heat conductive coating modified radiator

A thermal conductive coating, graphene technology, applied in coatings, heat exchange materials, anti-corrosion coatings, etc., can solve problems such as poor anti-corrosion performance, general heat dissipation performance of heat dissipation fins, and limited application of water heaters, and achieve excellent thermal conductivity. , good thermal conductivity and heat dissipation effect, the effect of enhancing thermal conductivity

Inactive Publication Date: 2018-12-21
四川大仁新创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing radiators are fin-type structures, and the material is mostly aluminum alloy. However, the heat dissipation performance of the heat dissipation fins is average, and the corrosion resistance is poor, which limits its application in water heaters.

Method used

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  • Graphene heat conductive coating modified radiator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A heat sink modified by a graphene thermal conductive coating, comprising a heat dissipation base and a heat dissipation scale, the outer surface of the heat dissipation scale is sprayed with a graphene coating, and the composition of the graphene coating includes graphene oxide, water, tetrahydrofuran , water-based epoxy resin, methyl cellulose, composite conductive agent, carbon fiber filler, nano-scale silica and low surface energy organic matter.

[0025] In the composition of the graphene coating, the composite conductive agent is a mixture of acetylene carbon black, Ketjen black and carbon nanotubes, wherein the mass ratio of acetylene carbon black, Ketjen black and carbon nanotubes is 1:1:2.

[0026] Further, the heat dissipation base and the heat dissipation scales are made of one or more alloy materials of metal copper, metal aluminum, metal iron, and metal silver.

[0027] The spraying process of the graphene coating on the heat dissipation flakes comprises th...

Embodiment 2

[0034] A heat sink modified by a graphene thermal conductive coating, comprising a heat dissipation base and a heat dissipation scale, the outer surface of the heat dissipation scale is sprayed with a graphene coating, and the composition of the graphene coating includes graphene oxide, water , tetrahydrofuran, modified urea-formaldehyde resin, sodium alginate, composite conductive agent, carbon fiber filler, nano-scale silica and low surface energy organic matter.

[0035] In the composition of the graphene coating, the composite conductive agent is a mixture of acetylene carbon black, Ketjen black and carbon nanotubes, wherein the mass ratio of acetylene carbon black, Ketjen black and carbon nanotubes is 1:1:2.

[0036] The spraying process of the graphene coating on the heat dissipation flakes comprises the following steps:

[0037] Step 1): 5 parts by mass of graphene are added to 50 parts by mass of water, and the graphene is uniformly dispersed in the aqueous system and ...

Embodiment 3

[0043] A heat sink modified by a graphene thermal conductive coating, comprising a heat dissipation base and a heat dissipation scale, the outer surface of the heat dissipation scale is sprayed with a graphene coating, and the composition of the graphene coating includes graphene oxide, water , tetrahydrofuran, water-based acrylic resin, agar, composite conductive agent, carbon fiber filler, nano-scale silica and low surface energy organic matter.

[0044] In the composition of the graphene coating, the composite conductive agent is a mixture of acetylene carbon black, Ketjen black and carbon nanotubes, wherein the mass ratio of acetylene carbon black, Ketjen black and carbon nanotubes is 1:1:2.

[0045] The spraying process of the graphene coating on the heat dissipation flakes comprises the following steps:

[0046] Step 1): 5 parts by mass of graphene are added to 50 parts by mass of water, and the graphene is uniformly dispersed in the aqueous system and part of the graphe...

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Abstract

The invention provides a graphene heat conductive coating modified radiator, comprising a heat dissipation base and a heat dissipation fin. An outer surface of the heat dissipation fin is sprayed witha graphene coating, and the composition of the graphene coating comprises graphene oxide, solvent, dispersant, adhesive, thickener, composite conductive agent, carbon fiber filler, hydrophobic fillerand low surface energy organic matter. The graphene heat conductive coating modified radiator provided by the invention has excellent thermal conductivity by coating the heat dissipation fin thereofwith the modified graphene heat conductive coating, and at the same time, the heat conductivity, wear resistance, hydrophobicity and corrosion resistance of the graphene heat conductive coating are enhanced by adding carbon fiber filler, hydrophobic filler to the graphene heat conductive coating, enables the radiator to be used in a water heater or other equipment, and is less prone to corrosion when exposed to a medium for a long time.

Description

technical field [0001] The invention belongs to the technical field of graphene preparation, and in particular relates to a heat sink modified with a graphene thermally conductive coating. Background technique [0002] Many household appliances, mechanical equipment, etc. need to install heat dissipation devices to dissipate heat to ensure the normal operation of the machine and prevent certain components from working at high temperatures and shortening their service life. Most of the existing radiators are fin-type structures, and the material is mostly aluminum alloy. However, the heat dissipation performance of the heat dissipation fins is average, and the corrosion resistance performance is poor, which limits its application in water heaters. [0003] As a new type of carbon nanomaterial, graphene has a unique two-dimensional sheet structure, which makes it have a high specific surface area, a large contact area, and strong surface adsorption. It can form a two-dimension...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D101/28C09D161/32C09D105/04C09D133/00C09D105/12C09D5/08C09D7/61C09K5/14
CPCC09D5/08C09D7/61C09D7/70C09D133/00C09D161/32C09D163/00C09K5/14C08L1/28C08K3/04C08K3/042C08K3/041C08K7/06C08K13/04C08L5/04C08L5/12
Inventor 陈昌安
Owner 四川大仁新创科技有限公司
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