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High diffuse reflection paint for lamp and preparation method of high diffuse reflection paint

A high diffuse reflection and coating technology, applied in the field of optical coatings, can solve the problems of weak covering power of barium sulfate, achieve the effect of solving glare problems, simple coating, and convenient purchase

Inactive Publication Date: 2012-10-03
SHANGHAI SANSI ELECTRONICS ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems in the prior art, the present invention provides a high-diffuse-reflection paint for lamps and a preparation method thereof. Aiming at the shortcoming of barium sulfate having weak covering power, an appropriate amount of titanium dioxide with a smaller particle size is added to obtain Diffuse reflective coating with high reflectivity and single spraying; for indoor environmental protection requirements, water-based resin emulsion is used as the film-forming material of reflective coating, which can better achieve high reflectivity, environmental protection and high efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First weigh 50g of water, tap water is used in this embodiment. Take by weighing other coating additives such as film-forming aid propylene glycol methyl ether acetate 1.65g, dispersant is 0.72g, thickener is 0.87g, defoamer is

[0021] 0.22g, 0.22g of bactericidal and antifungal agent, and 0.33g of wetting agent are added to the mixer and stirred for about 15 minutes at a dispersion speed of 1500 rpm. Then, take 112g of anatase titanium dioxide and 48g of precipitated barium sulfate, add them to the mixer, adjust the dispersion speed to 3500 rpm and stir for about 15 minutes, then use the grinder to grind at a speed of 2500 rpm Grind for about 15 minutes. Finally, 36 g of acrylic emulsion resin was added at a speed of 1200 rpm, and stirred for 15 minutes. Filtration and sub-packaging can obtain a self-drying paint with moderate viscosity that can be sprayed.

[0022] Embodiment 1 The reflective coating has a reflectivity as high as 95%, excellent adhesion, and moder...

Embodiment 2

[0024] First weigh 60g of water, tap water is used in this embodiment. Take by weighing other coating additives such as film-forming aid propylene glycol methyl ether acetate 2.48g, dispersant is 1.08g, thickener is 1.31g, defoamer is 0.33g, bactericide antifungal agent is 0.49g, moistening agent The wet agent is 0.49g, which is added to the mixer and stirred for about 15 minutes at a dispersion speed of 1500 rpm. Then, take 112g of anatase titanium dioxide and 48g of precipitated barium sulfate, add them to the mixer, adjust the dispersion speed to 3500 rpm and stir for about 15 minutes, then use the grinder to grind at a speed of 2500 rpm Grind for about 15 minutes. Finally, 34 g of styrene-acrylic emulsion resin was added at a speed of 1200 rpm, and stirred for 15 minutes. Filtration and subpackaging can obtain self-drying paint with moderate viscosity that can be applied by spraying.

[0025] The reflection rate of the reflective coating in Embodiment 2 is as high as 95...

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Abstract

The invention relates to high diffuse reflection paint for a lamp. The main components of the high diffuse reflection paint for the lamp comprise polymer resin and barium sulfate. The high diffuse reflection paint for the lamp is characterized in that the polymer resin is resin emulsion which takes water as a solvent and has the mass fraction of 17 to 19 percent; the barium sulfate has the mass fraction of 24 percent; and the high diffuse reflection paint for the lamp also comprises titanium dioxide with the mass fraction of 56 percent and a paint auxiliary with the mass fraction of 1 percent to 3 percent. Aiming at the defect of poor covering power of the barium sulfate, the paint disclosed by the invention is added with a right amount of titanium dioxide with small particle size to obtain a diffuse reflection coating which has high reflectivity and is sprayed for once; and aiming at the indoor environmental-friendly requirement, the aqueous resin emulsion is used as a film forming substance of the reflection paint, so that the effects of high reflectivity, environmental-friendliness and high efficiency can be well achieved.

Description

technical field [0001] The invention relates to an optical coating, and further relates to a functional coating and a preparation method thereof which is applied to a reflective cavity or a light-emitting surface of a lamp to improve the luminous flux of the lamp. Background technique [0002] LED lighting is leading a revolution in the history of human lighting. LED light sources have the characteristics of long life, high luminous efficiency, no radiation and low power consumption. The spectrum of LED is almost all concentrated in the visible light frequency band, and its luminous efficiency can reach 80%~90%. However, due to the small size and high brightness of LED chips, LED lighting directly emits visible light that is dazzling and dazzling, causing glare; therefore, in many cases, choosing a reflective lamp with a reflective cavity structure has become an option. [0003] Referring to the backlighting technology of displays, there are many lighting auxiliary materia...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D125/14C09D133/04C09D183/00C09D7/12F21V7/22F21Y101/02F21Y115/10
Inventor 陈必寿许礼何孝亮陈敏
Owner SHANGHAI SANSI ELECTRONICS ENG
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