Infrared ray absorbing coating for automobile glass surface and preparation method of infrared ray absorbing coating

A technology of automotive glass and infrared rays, applied in the direction of radiation-absorbing coatings and coatings, can solve the problems of inability to shield ultraviolet rays, achieve good absorption effect, excellent visible light transmittance, and easy to use

Inactive Publication Date: 2022-05-13
苏州禾川化学技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Materials that can block or shield infrared rays include rare earth hexaboride, antimony tin oxide (ATO), indium tin oxide (ITO), and zinc aluminum oxide (ZAO). These compounds can shield near-infrared light with a wavelength greater than 1500nm, but Can not shield ultraviolet rays and infrared rays with wavelengths less than 1500nm

Method used

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  • Infrared ray absorbing coating for automobile glass surface and preparation method of infrared ray absorbing coating
  • Infrared ray absorbing coating for automobile glass surface and preparation method of infrared ray absorbing coating
  • Infrared ray absorbing coating for automobile glass surface and preparation method of infrared ray absorbing coating

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Components: 25 parts of cesium tungsten bronze nano-dispersion, 7 parts of water-based resin film-forming agent, 1 part of composite coupling agent, 0.5 part of wetting agent, 0.5 part of anti-settling thixotropic agent, 0.2 part of antioxidant, 66.8 parts of water share.

[0044] In this embodiment, the cesium tungsten bronze nano-dispersion is made of 0.2mol / L tungsten hexachloride and 0.07mol / L cesium hydroxide monohydrate as raw materials, citric acid as reducing agent, ethylene glycol: water The volume ratio is 25:75 as a mixed solvent and reacted at 240°C for 24 hours. Wherein, the D50 particle size of this cesium tungsten bronze nano-dispersion is 15.62nm, and the D90 particle size is 20.53nm (its particle size distribution diagram is as attached figure 1 shown).

[0045] In this embodiment, the coupling agent is compounded from 0.2 parts of KH-560, 0.4 parts of KH-792 and 0.4 parts of tetraisopropyl titanate; the water-based resin film-forming agent is water-b...

Embodiment 2

[0047] Components: 20 parts of cesium tungsten bronze nano-dispersion, 5 parts of water-based resin film-forming agent, 3 parts of composite coupling agent, 0.5 part of wetting agent, 0.5 part of anti-sedimentation thixotropic agent, 0.2 part of antioxidant, 70.8 parts of water share.

[0048] In this embodiment, the cesium tungsten bronze nano-dispersion is made of 0.2mol / L tungsten hexachloride and 0.07mol / L cesium hydroxide monohydrate as raw materials, acetic acid as a reducing agent, ethanol: water by volume ratio 30:70 as a mixed solvent, reacted at 220 ° C for 22 hours in the system. Wherein, the D50 particle size of this cesium tungsten bronze nano-dispersion is 15.62nm, and the D90 particle size is 20.53nm (its particle size distribution diagram is as attached figure 2 shown).

[0049] In this embodiment, the coupling agent is compounded from 1 part of KH-560, 1 part of KH-6021 and 1 part of tetraisopropyl titanate; the water-based resin film-forming agent is polyv...

Embodiment 3

[0051] Components: 22 parts of cesium tungsten bronze nano-dispersion, 5 parts of water-based resin film-forming agent, 1 part of composite coupling agent, 0.5 part of wetting agent, 0.3 part of anti-sedimentation thixotropic agent, 0.1 part of antioxidant, 71.1 parts of water .

[0052] In the present embodiment, the cesium tungsten bronze nano-dispersion is made of 0.3mol / L sodium tungstate and 0.1mol / L cesium carbonate as raw materials, citric acid as reducing agent, ethanol: water with a volume ratio of 30: 70 was used as a mixed solvent and prepared by reacting at 220°C for 22 hours. Wherein, the D50 particle size of this cesium tungsten bronze nano-dispersion is 40.07nm, and the D90 particle size is 61.18nm (its particle size distribution diagram is as attached image 3 shown).

[0053] In the present embodiment, the coupling agent is compounded from 0.3 parts of KH-560, 0.35 parts of KH-550 and 0.35 parts of bis(dioctyloxypyrophosphate) ethylene titanate; the The wat...

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Abstract

The invention provides an infrared absorption coating for an automobile glass surface and a preparation method of the infrared absorption coating. The infrared absorption coating comprises the following components in parts by weight: 20-25 parts of a cesium tungsten bronze nano dispersion, 2-7 parts of a water-based resin film-forming agent, 1-3 parts of a composite coupling agent, 0.5-1.0 part of a wetting agent, 0.5-1.5 parts of an anti-settling thixotropic agent, 0.1-0.5 part of an antioxidant and 65-75 parts of water. The infrared ray absorption coating has excellent visible light transmittance and near-infrared absorption performance, the visible light transmittance is 70%, the near-infrared region blocking rate is as high as 94%, and the infrared ray absorption coating has a good absorption effect on middle and far infrared regions (8-10 microns).

Description

technical field [0001] The invention belongs to the technical field of coating film reflection and heat insulation, and in particular relates to an infrared absorption coating used on the surface of automobile glass and a preparation method thereof. Background technique [0002] With the rapid development of society, saving energy and reducing pollutant emissions has become a common concern of all mankind. Nowadays, with the increasing popularity of automobiles and the increasing demand for automobiles, automobile glass is the main material for the exchange of energy and light energy between the interior of the automobile and the outside world. Channels also put forward higher requirements for their surface functionalization. Automotive glass not only needs UV insulation, but also needs infrared insulation to achieve heat insulation, and ultimately reduce energy consumption such as air conditioning. Therefore, the development of transparent heat-insulating coatings with hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D129/04C09D101/28C09D5/32C09D7/61C09D7/63
CPCC09D133/00C09D129/04C09D101/284C09D101/28C09D5/32C09D7/61C09D7/63C08K2201/011C08K3/22C08K5/5435C08K5/544C08K5/10
Inventor 景欣欣苏丽敏
Owner 苏州禾川化学技术服务有限公司
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