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High-adhesion-strength heat dissipating coating for LED lamp

A technology of adhesion strength and heat-dissipating coatings, which is applied in the direction of fireproof coatings, polyester coatings, heat exchange materials, etc., can solve the problems of low adhesion strength and affecting the service life of LED coatings, so as to improve adhesion strength and avoid skin warping Good cooling effect

Inactive Publication Date: 2018-06-19
TIANCHANG JINLING ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the LED lamps used in the market are generally coated with heat-dissipating coatings on the surface, but when the temperature of the existing heat-dissipating coatings is too high, the adhesion strength of the film-forming substances of these heat-dissipating coatings becomes low, which greatly affects the use of LED coatings. life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A heat-dissipating coating with high adhesion strength for LED lamps, the raw materials of which include: 60g of water-based polyurethane resin, 40g of water-based alkyd resin, 20g of silicon acrylic emulsion, 35g of filler, 1.5g of titanate coupling agent, isophorone dicyanide Ester 5g, dodecyl alcohol ester 3g, lauric acid 4g, anti-settling agent 0.2g, leveling agent 2g, wetting agent 0.5g, ethanol 25g, water 50g.

[0016] The filler includes: 10g of nano-titanium dioxide composite, 6g of medical stone powder, 4g of glass fiber, and 8g of diatomaceous earth. The nano-titanium dioxide composite was prepared by the following process: mix 35g nano-titanium dioxide, 4g styrene, 5g acrylic acid, and 2g kaolin evenly, under nitrogen protection, add 0.3g ammonium persulfate, 70g water, heat up to 95°C and stir for 3h, the stirring speed is 1000r / min, centrifuge to break the emulsion, wash, then add 65g of 70wt% butanol solution and 4g of n-hexane, stir for 20min, centrifuge,...

Embodiment 2

[0018] A heat-dissipating coating with high adhesion strength for LED lamps, the raw materials of which include: 80g of water-based polyurethane resin, 30g of water-based alkyd resin, 30g of silicon acrylic emulsion, 25g of filler, 2.5g of titanate coupling agent, isophorone dicyanide Ester 2g, dodecyl alcohol ester 5g, lauric acid 2g, anti-settling agent 0.6g, leveling agent 1g, wetting agent 1.5g, ethanol 15g, water 70g.

[0019] The filler includes: 4g of nano-titanium dioxide composite, 12g of medical stone powder, 2g of glass fiber, and 16g of diatomaceous earth. The nano-titanium dioxide composite was prepared by the following process: mix 25g nano-titanium dioxide, 8g styrene, 3g acrylic acid, and 4g kaolin evenly, under nitrogen protection, add 0.2g ammonium persulfate and 90g water, heat up to 85°C and stir for 5h, the stirring speed is 800r / min, centrifuge to break the emulsion, wash, then add 85g of 60wt% butanol solution and 8g of n-hexane, stir for 10min, centrifu...

Embodiment 3

[0021] A heat-dissipating coating with high adhesion strength for LED lamps, the raw materials of which include: 65g of water-based polyurethane resin, 37g of water-based alkyd resin, 22g of silicon acrylic emulsion, 32g of filler, 1.8g of titanate coupling agent, isophorone dicyanide Ester 4g, dodecyl alcohol ester 3.5g, lauric acid 3.5g, anti-settling agent 0.3g, leveling agent 1.7g, wetting agent 0.8g, ethanol 22g, water 55g.

[0022] The filler includes: 8g of nano-titanium dioxide composite, 8g of medical stone powder, 3.5g of glass fiber, and 10g of diatomaceous earth. The nano-titanium dioxide composite was prepared by the following process: mix 32g nano-titanium dioxide, 5g styrene, 4.5g acrylic acid, and 2.5g kaolin evenly, under nitrogen protection, add 0.28g ammonium persulfate and 75g water, heat up to 92°C and stir for 3.5h, Stirring speed is 950r / min, centrifugal demulsification, washing, then add 70g concentration of 66wt% butanol solution, 5g n-hexane and stir ...

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Abstract

The invention discloses high-adhesion-strength heat dissipating coating for an LED lamp. The high-adhesion-strength heat dissipating coating is prepared from the following raw materials in parts by weight: 60 to 80 parts of waterborne polyurethane resin, 30 to 40 parts of waterborne alkyd resin, 20 to 30 parts of silicone acrylic emulsion, 25 to 35 parts of filling agent, 1.5 to 2.5 parts of titanate coupling agent, 2 to 5 parts of isophorone diisocyanate , 3 to 5 parts of texanol, 2 to 4 parts of lauric acid, 0.2 to 0.6 part of anti-settling agent, 1 to 2 parts of flatting agent, 0.5 to 1.5 parts of wetting agent, 15 to 25 parts of ethyl alcohol and 50 to 70 parts of water. The high-adhesion-strength heat dissipating coating is suitable for various environments and temperatures, the defects such as surface warping, and stripping caused by long storage at a high temperature can be avoided, the adsorption performance is good, the adhesion strength with a bottom material is high, the elasticity is good, the heat conductive performance is excellent, the service life is long, no formaldehyde is released, the body health can be facilitated, and the high-adhesion-strength heat dissipating coating has an environment-friendly effect.

Description

technical field [0001] The invention relates to the technical field of LED lamps, in particular to a heat-dissipating coating with high adhesion strength for LED lamps. Background technique [0002] LED light source is a new type of light source in the 21st century. It has advantages that traditional light sources cannot compare with, such as high efficiency, long life, and unbreakable. At present, the LED lamps used in the market are generally coated with heat-dissipating coatings on the surface, but when the temperature of the existing heat-dissipating coatings is too high, the adhesion strength of the film-forming substances of these heat-dissipating coatings becomes low, which greatly affects the use of LED coatings. life. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a heat-dissipating coating with high adhesion strength for LED lamps, which is suitable for various environments...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D167/08C09D133/04C09D7/61C09D7/62C09D7/63C09K5/14
CPCC09D175/04C08K2003/2241C08K2201/011C08L2201/08C08L2203/20C08L2205/035C09D5/18C09K5/14C08L67/08C08L43/04C08K13/06C08K9/10C08K7/14C08K7/26C08K3/346C08K3/22C08K5/10C08K7/24
Inventor 茆文斌
Owner TIANCHANG JINLING ELECTRONICS
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