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Spherical graphite coating and preparation method thereof

A technology of graphite coating and ball type, applied in the direction of coating, etc., can solve problems such as aging and health hazards, and achieve the effects of good water resistance, lower temperature of electronic products, and simple coating method

Active Publication Date: 2015-03-18
深圳沃尔提莫电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the heat-dissipating coatings applied to product shells are organic materials. The application of organic materials is not only harmful to human health, but also aging during use.

Method used

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  • Spherical graphite coating and preparation method thereof
  • Spherical graphite coating and preparation method thereof
  • Spherical graphite coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of spherical graphite paint, its formula is composed as following table:

[0024]

[0025] Table 1 The composition of a spherical graphite material formula

[0026] Prepare spherical graphite coating with the formula of embodiment 1 as example, illustrate preparation method of the present invention:

[0027] Add 60 parts by mass of spherical graphite, 10 parts by mass of natural graphite, 0.2 parts by mass of SXP-107 silicone polyether composite defoamer and 1 part by mass of polydimethylsiloxane into the dispersion tank, and control the speed at 800-1000 rpm Add 2 parts by mass of cellulose ether into the dispersion tank, grind at high speed for 10-30min, then add 1 part by mass of 2,2,4-trimethyl-1,3-pentanediol monoiso Butyrate, 0.5 parts by mass of 1,2-propanediol and 57 parts by mass of water-based acrylic emulsion, stirring; finally add 0.7 parts by mass of benzimidazole methyl carbamate, 0.2 parts by mass of 1,2-benzoiso Thiazol-3-one and 0.3 parts by...

Embodiment 2

[0035] A kind of spherical graphite paint, its formula is composed as following table:

[0036]

[0037]

[0038] Table 4 A composition table of spherical graphite material formula

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Abstract

The invention discloses a spherical graphite coating. The spherical graphite coating is prepared from the following raw materials in parts by mass: 60-65 parts of spherical graphite, 5-10 parts of flake graphite, 0.5-5 parts of a coalescing agent, 0.5-5 parts of a cosolvent, 0.5-3 parts of a dispersing agent, 0.1-1 part of an de-foaming agent, 0.1-3 parts of a thickener, 0-1 part of a pH adjusting agent, 0-2 parts of an anti-mildew agent, 0-1 part of a preservative, 0-2 parts of a flatting agent and 35-72 parts of waterborne acrylic emulsion. The spherical graphite coating disclosed by the invention has the advantages of excellent adhesion force and good water resistance; by coating surfaces of electronic products with the spherical graphite coating, the heat dissipation of the electronic products can be accelerated and the temperatures of the electronic products can be effectively decreased; the coating method is simple and convenient and is completely identical to that of an ordinary coating.

Description

technical field [0001] The invention relates to a coating, in particular to a spherical graphite coating for reducing the surface temperature of electronic products, and the coating method is simple and convenient. Background technique [0002] With the development of coatings applied to electronic products and the demands of market competition, coatings have gradually changed from the earliest low-performance single-function to today's high-performance multi-function. Faced with the increasing concern of various electronic product manufacturers in the market for heat dissipation performance requirements. Traditional heat dissipation materials are mainly used in product heating components. Most of the heat-dissipating coatings applied to product casings are organic materials. The application of organic materials is not only harmful to human health, but also aging during use. Contents of the invention [0003] The spherical graphite coating provided by the invention has e...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12
CPCC08K2201/014C08L2205/035C09D7/61C09D7/63C09D7/65C09D133/00C08L83/04C08L1/28C08L71/00C08K3/04C08K5/103C08K5/053C08K5/17C08K5/3447
Inventor 何千舟
Owner 深圳沃尔提莫电子材料有限公司
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