Water-based microbead light diffusion coating and preparation method thereof

A technology of light diffusing and light diffusing agent, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of high safety performance, light source lighting, glare, etc., and achieve the effect of uniform light source, good heat dissipation effect and long service life

Inactive Publication Date: 2016-05-18
李小鹏
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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 address the defects and deficiencies of the prior art, and to provide a water-based micro-pearl light diffusion coating. The invention solves the problems of VOC in the water-based coating, and LED glass lamp tube LED point light source emits light and produces glare. On the LED glass shell, the light can be refracted and scattered, so as to achieve uniform lighting, eliminate the glare problem of point light sources, and have high safety performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A water-based micro-pearl light diffusion coating, its formula is as follows: 20 parts of water-based polyurethane resin, 15 parts of high temperature resistant silicone resin, 5 parts of light diffusing agent, 3 parts of emulsifier, 1 part of defoaming agent, 2 parts of inorganic pigment, thickening 3 parts of agent, 2 parts of dispersant, 1 part of diffusing agent and 5 parts of mixed solvent.

[0019] The emulsifier is acrylate emulsion.

[0020] The inorganic pigment is titanium dioxide.

[0021] The dispersant is a stearic acid amide type dispersant.

[0022] The thickener is a polyurethane thickener.

[0023] The defoamer is a conventional water-based defoamer.

[0024] The light-diffusing agent is an organic light-diffusing agent, using silicone resin particles.

[0025] The diffusion agent is micron glass beads.

Embodiment 2

[0027] A water-based micro-pearl light diffusion coating, its formula is as follows: 30 parts of water-based polyurethane resin, 20 parts of high temperature resistant silicone resin, 15 parts of light diffusing agent, 7 parts of emulsifier, 1.5 parts of defoamer, 7 parts of inorganic pigment, thickening 5 parts of agent, 4 parts of dispersant, 5 parts of diffusing agent and 15 parts of mixed solvent.

[0028] The emulsifier is acrylate emulsion.

[0029] The inorganic pigment is barium sulfate.

[0030] The dispersant is a stearic acid amide type dispersant.

[0031] The thickener is a polyurethane thickener.

[0032] The defoamer is a conventional water-based defoamer.

[0033] The light diffusing agent is an organic type light diffusing agent, using cross-linked styrene particles.

[0034] The diffusion agent is micron glass beads.

Embodiment 3

[0036] A water-based micro-pearl light diffusion coating, its formula is as follows: 25 parts of water-based polyurethane resin, 17 parts of high temperature resistant silicone resin, 10 parts of light diffusing agent, 5 parts of emulsifier, 1.2 parts of defoaming agent, 5 parts of inorganic pigment, thickening 4 parts of agent, 3 parts of dispersant, 3 parts of diffusing agent and 10 parts of mixed solvent.

[0037] The emulsifier is acrylate emulsion.

[0038] The inorganic pigment is talcum powder.

[0039] The dispersant is trisodium phosphate.

[0040] The thickener is a polyurethane thickener.

[0041] The defoamer is a conventional water-based defoamer.

[0042] The light diffusing agent is an organic light diffusing agent, using cross-linked acrylic particles.

[0043] The diffusion agent is micron glass beads.

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PUM

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Abstract

The invention relates to the technical field of LEDs, in particular to a water-based microbead light diffusion coating. The coating is prepared from 20-30 parts of water-based polyacrylic acid resin, 15-20 parts of high temperature resistance organic silicon resin, 5-15 parts of a light diffusion agent, 3-7 parts of an emulsifying agent, 1-1.5 parts of a defoaming agent, 2-7 parts of inorganic pigment, 3-5 parts of a thickening agent, 2-4 parts of a dispersing agent, 1-5 parts of a diffusion agent and 5-15 parts of a mixed solvent. According to the water-based microbead light diffusion coating, the problems of LED lamp glare, light pollution and the like are solved, the light source is uniform, soft and full, the light permeability and light scattering performance are good, the cooling effect is good, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to a water-based micro-pearl light diffusion coating and a preparation method thereof. Background technique [0002] LED is a point light source. When it is used as a light source for lamps and lanterns, it needs to have a lampshade that diffuses light and has a good light transmittance in order to avoid the glare problem. Glass lampshade is currently the most commonly used lampshade. Glass has good light transmittance, but the glare problem is particularly serious when it is used as an LED lampshade. For this reason, most of the prior art uses solvent-based light-diffusing coatings to coat glass lampshades. , form a light diffusion coating on its inner surface (the outer surface is also acceptable, but it is easy to fall off due to wear and tear, so it is not used in most cases), so that the light emitted by the LED light source is refracted and scattered, and diffused to form a soft ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D183/04C09D7/12
CPCC09D175/04C08L2205/035C09D7/61C09D7/65C08L83/04C08L33/08C08K13/02C08K2003/2241C08K7/20C08K2003/3045C08K3/34
Inventor 缪希希
Owner 李小鹏
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