High-permeability composite heat dissipating coating

A heat-dissipating coating and air-permeability technology, applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of weak surface adhesion, small application range, unsatisfactory use effect, etc., and achieve strong heat dissipation effect and workability. Good, stable coating effect

Inactive Publication Date: 2014-04-23
WUHU BAOYI AMUSEMENT EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The heat dissipation coatings currently produced are generally used in the heat dissipation of components of electronic products such as CPUs and LED lamps. The requir

Method used

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Examples

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Embodiment 1

[0016] A kind of highly air-permeable composite heat-dissipating coating is characterized in that it is made up of the raw material of following parts by weight (kg):

[0017] Polypropylene 100, 191 unsaturated polyester resin 10-16, potassium titanate 1, cyclohexyl alcohol 3, triglycidyl isocyanurate 2, tris [2.4-di-tert-butylphenyl] phosphite 0.6, Acrylate 10, 2,6-di-tert-butyl-p-cresol 1, dimethylethanolamine 2, nano bentonite 14, hollow glass microsphere 3, modified filler 10;

[0018] The modified filler is composed of the following raw materials in parts by weight:

[0019] Pyrophyllite 40, chromium carbonate 3, butyl hydroxyanisole 0.6, ammonium octamolybdate 1, polytetrafluoroethylene 5, graphite powder 3, bone char 3, ricinoleic acid 0.4;

[0020] Calcinate the above-mentioned pyrophyllite at 600°C for 1 hour, mix and ball-mill it with polytetrafluoroethylene, bone char, and graphite powder for 20 minutes after discharging the material, add ammonium octamolybdate and...

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PUM

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Abstract

The invention discloses a high-permeability composite heat dissipating coating comprising the following raw materials in parts by weight: 96-100 parts of polypropylene, 10-16 parts of 191 unsaturated polyester resin, 1-2 parts of potassium titanate, 2-3 parts of cyclohexanhexol, 2-4 parts of triglycidyl isocyanurate, 0.3-0.6 part of tris [2, 4-di-tert-butylphenyl] phosphite, 7-10 parts of acrylic ester, 1-2 parts of 2, 6-di-tert-butyl-p-cresol, 1-2 parts of dimethylethanolamine, 10-14 parts of nanometer bentonite, 2-3 parts of hollow glass microspheres and 5-10 parts of modified padding. The powder coating disclosed by the invention is flat, smooth and clean in coat, free of obvious bubbles, shrinkage cavities or particles, stable in coat, good in construction property, good in permeability and strong in heat dissipating effect.

Description

technical field [0001] The invention mainly relates to a powder coating, in particular to a high-permeability composite heat-dissipating coating. Background technique [0002] Thermally conductive and heat-dissipating coatings are widely used in fields that require heat dissipation, such as computers, notebook computers, LED lighting, communications, rectifiers, medical and industrial equipment, and are mainly coated on the surface of radiators. [0003] The heat dissipation coatings currently produced are generally used in the heat dissipation of components of electronic products such as CPUs and LED lamps. The requirements for the medium for painting are relatively high, and the adhesion to rough and loose surfaces is not strong, so the use effect is not ideal. The scope of application is small. Contents of the invention [0004] The object of the present invention is to provide a composite heat-dissipating coating with high air permeability. [0005] The present i...

Claims

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Application Information

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IPC IPC(8): C09D123/12C09D167/06C09D7/12C09D5/03
Inventor 张庆
Owner WUHU BAOYI AMUSEMENT EQUIP
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