A wide-band reflective coating and reflective device

A reflective paint, broadband technology, applied in the field of paint, can solve problems such as relatively few studies, and achieve the effect of high reflectivity and wide reflection band

Active Publication Date: 2021-11-09
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, most of the current research focuses on how to effectively improve the reflectivity of coatings. There are relatively few studies on how to broaden the wavelength band of diffuse reflection, and they all focus on directly improving diffuse reflection materials.

Method used

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  • A wide-band reflective coating and reflective device
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  • A wide-band reflective coating and reflective device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A broadband reflective paint, comprising the following components according to the total mass of the paint:

[0032]

[0033]

[0034] Among them, the reflective powder accounts for 40% of the total mass of the coating, including 10% of large particle size titanium dioxide (that is, 25% of the total mass of the reflective powder), 13% of small particle size titanium dioxide (that is, 25% of the total mass of the reflective powder) 32.5%), 16% of barium sulfate (that is, 40% of the total mass of the reflective powder) and 1% of polytetrafluoroethylene (that is, 2.5% of the total mass of the reflective powder).

[0035] This embodiment also provides a method for preparing the above-mentioned broadband reflective coating: wherein, the method for preparing titanium dioxide with a small particle size and titanium dioxide with a large particle size specifically includes (this embodiment takes the surface of titanium dioxide particles coated with silicon dioxide as an exa...

Embodiment 2

[0048] A kind of broadband reflective coating, the difference with embodiment 1 is that the concrete ratio of each component is different, specifically as follows:

[0049]

[0050] Among them, the reflective powder accounts for 37% of the total mass of the coating, including 8% of large particle size titanium dioxide (that is, 21.6% of the total mass of the reflective powder), 12% of small particle size titanium dioxide (that is, 21.6% of the total mass of the reflective powder) 32.4%), 15% of barium sulfate (that is, 40.6% of the total mass of the reflective powder) and 2% of polytetrafluoroethylene (that is, 5.4% of the total mass of the reflective powder).

Embodiment 3

[0052] A kind of broadband reflective coating, the difference with embodiment 1 is that described aqueous resin selects epoxy resin, simultaneously, comprises 16% deionized water and 1% leveling agent, 1% defoamer and 1% of wetting agent.

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Abstract

The invention discloses a reflective coating and a reflective device with a wide band. The broadband reflective coating includes water-based resin, reflective powder and solvent. Based on the total mass of the reflective powder, the reflective powder includes 15-25% of large particle size titanium dioxide, 20-35% of small particle size titanium dioxide, 30-41% % barium sulfate, 2-14% polytetrafluoroethylene, the particle size of the large particle size titanium dioxide is 50-60 μm, and the particle size of the small particle size titanium dioxide is 1.5-2 μm. The reflective device includes a reflective coating, and the reflective coating includes the above-mentioned broadband reflective coating. The combination of titanium dioxide with large particle size, titanium dioxide with small particle size and polytetrafluoroethylene in the present invention can achieve wider reflection bands in the ultraviolet, visible, near-infrared and far-infrared bands, while ensuring that the coating can have better reflection Rate.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a broadband reflection coating and a light reflection device. Background technique [0002] The phenomenon that light rays are randomly reflected in all directions on a rough surface is called diffuse reflection. For example, when parallel sunlight hits a wall, it will be diffusely reflected in all directions, so that the naked eye can observe the wall. The common phenomenon of diffuse reflection also has many applications in daily life, such as projection screens, electronic device displays, laser device housings, solar collectors, etc. Improve luminous efficiency and save energy through diffuse reflective materials. However, direct diffuse reflective materials are difficult to process due to various problems, so in many cases in actual production applications, materials coated with diffuse reflective coatings are used instead. [0003] In addition, most of the current research focuse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/33C09D175/04C09D175/02C09D133/00C09D163/00C09D7/61C09D7/65
CPCC08K2003/2241C08K2003/3045C08K2201/014C08L2205/03C09D5/004C09D133/00C09D163/00C09D175/02C09D175/04C09D7/61C09D7/65C09D7/66C08L27/18C08K3/22C08K3/30C08L33/00
Inventor 赵宁罗大为黄锦雅魏淑玲麦芷冰黄庭朋陈子琦黄丹萍徐萌萌李梓銮丘丽梅杨静娴陈科霖彭绿敏
Owner SHENZHEN POLYTECHNIC
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