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Thermal conductive insulation paint and preparation method thereof

A technology of heat conduction insulation and coating, applied in the direction of coating, etc., can solve the problems of heat conduction in time, heat conduction and insulation performance are not ideal, etc., and achieve the effect of easy implementation, good medium resistance and high thermal conductivity

Active Publication Date: 2014-06-25
TIANJIN DYLAN POWER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above problems, mainly to solve the technical problem that the heat conduction and insulation performance of the existing high-power electronic components are not ideal due to the inability to conduct heat in time, and to provide a thermally conductive and insulating coating and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Thermally conductive and insulating coating ingredients by mass percentage: epoxy modified silicone resin 60%; silicon carbide 20%; composite flame retardant 5%; titanium dioxide 5%; boron nitride 8%; 5% of the total mass of modified silicone resin.

[0016] in:

[0017] The content of silicone in the epoxy modified silicone resin is 65%;

[0018] The composite flame retardant is composed of magnesium hydroxide, ammonium dihydrogen phosphate and antimony trioxide, and the mass ratio of magnesium hydroxide: ammonium dihydrogen phosphate: antimony trioxide is 3:1:1;

[0019] Particle size range of silicon carbide, boron nitride and titanium dioxide: 325 mesh to 800 mesh;

[0020] Auxiliaries include dispersant, coupling agent and anti-sedimentation agent, the mass ratio of dispersant:coupling agent:anti-settling agent is 1:3:3;

[0021] The speed of high-speed ball milling is 500r / min.

[0022] The coating was prepared on the 2mm steel plate by brushing. After curing,...

Embodiment 2

[0024] Thermally conductive and insulating coating ingredients by mass percentage: epoxy modified silicone resin 40%; silicon carbide 25%; composite flame retardant 10%; titanium dioxide 7%; boron nitride 15%; 6% of the mass.

[0025] in:

[0026] The content of silicone in the epoxy modified silicone resin is 65%;

[0027] The composite flame retardant is composed of magnesium hydroxide, ammonium dihydrogen phosphate and antimony trioxide, and the mass ratio of magnesium hydroxide: ammonium dihydrogen phosphate: antimony trioxide is 3:1:1;

[0028] Particle size range of silicon carbide, boron nitride and titanium dioxide: 325 mesh to 800 mesh;

[0029] Auxiliaries include dispersant, coupling agent and anti-sedimentation agent, the mass ratio of dispersant: coupling agent: anti-settling agent is 1:1:3;

[0030] The speed of high-speed ball milling is 400r / min.

[0031] The coating was prepared on the 2mm steel plate by brushing. After curing, the thermal conductivity was...

Embodiment 3

[0033] The mass percentage of the thermal conductive insulating coating ingredients of the present invention is: epoxy modified silicone resin: 50%; silicon carbide: 20%; composite flame retardant: 8%; titanium dioxide: 5%; boron nitride: 15%; additives: 2% curing agent accounts for 4% of the total mass of the resin

[0034] in:

[0035] The content of silicone in the epoxy modified silicone resin is 65%;

[0036] The composite flame retardant is composed of magnesium hydroxide, ammonium dihydrogen phosphate and antimony trioxide, and the mass ratio of magnesium hydroxide: ammonium dihydrogen phosphate: antimony trioxide is 3:1:1;

[0037] Particle size range of silicon carbide, boron nitride and titanium dioxide: 325 mesh to 800 mesh;

[0038] Auxiliaries include dispersant, coupling agent and anti-sedimentation agent, the mass ratio of dispersant: coupling agent: anti-settling agent is 1:2:3;

[0039] The speed of high-speed ball milling is 300r / min.

[0040] The coating...

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Abstract

Disclosed are thermal conductive insulation paint and a preparation method thereof. The thermal conductive insulation paint is used for solving the problem that the thermal conductive property and the insulating property of existing high-power electronic components are dissatisfactory. The thermal conductive insulation paint comprises, by mass, 40-60% of epoxy-modified organic silicone resin wherein a curing agent accounts for 3-6% of the total mass of the epoxy-modified organic silicone resin, 15%-25% of silicon carbide, 5-10% of composite fire retardant, 3-8% of titanium dioxide, 5-15% of boron nitride and 1-3% of auxiliary agents. The preparation method comprises: drying the silicon carbide, the composite fire retardant, the titanium dioxide and the boron nitride in a drying oven with the mass ratio; adding the composite fire retardant, the titanium dioxide, the silicon carbide, the boron nitride and the auxiliary agent to the epoxy-modified organic silicone resin; mixing the mixture uniformly by a high-speed ball milling method and to obtain a paint product with the thermal conduction coefficient being high and the insulation and medium-resistance performance being excellent. The preparation method is simple and reasonable and is easy to carry out. The paint can be widely applied to various electronic devices with the temperature ranging from -55 DEG C to 300 DEG C.

Description

technical field [0001] The present invention relates to a heat-conducting and insulating coating and a preparation method thereof, in particular to a method for preparing a heat-conducting and insulating coating mainly used for high-power electronic components. The coating of the present invention can also be applied to other commercial and aviation products, including electronic equipment , machine control, mobile phones, portable computers and aerospace microwave energy supply systems. Background technique [0002] With the development of science and technology, electronic components and logic circuits tend to be denser and miniaturized, thus putting forward higher requirements for the stability of electrical appliances. In order to prevent the intrusion of moisture, dust and harmful gases to electronic components, slow down vibration, prevent external damage and stabilize component parameters, and minimize the adverse effects of the outside world, it is necessary to coat ...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D5/25C09D7/12
Inventor 时卓韩绍娟许壮志薛健张明吴学坤
Owner TIANJIN DYLAN POWER TECH
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