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Transparent coating capable of absorbing visible light and infrared light, preparing method and use thereof

A technology of infrared absorption and transparent coatings, which is applied in the field of coatings industry, can solve the problems of new stealth materials that have not been reported, reduce the total emissivity value of coating objects, and have not entered the practical stage, etc., to achieve good infrared transparency, The effect of convenient construction and low cost

Active Publication Date: 2007-09-12
HUBEI ZHONGXIN JINGHUA COLOR PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's research on multi-functional and broadband technology is relatively lagging behind. Although it has been reported that the infrared emissivity of the researched stealth materials has reached below 0.5, none of them have entered the practical stage. It is necessary to further significantly reduce the total emissivity value of coated objects.
However, research on new stealth materials such as nanocomposites, resin-based composites, and adaptive smart materials for infrared stealth has not yet been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Mix α-methacrylic acid, methyl methacrylate, azobisisobutyronitrile, and tributyl phosphate in a weight ratio of 2:10:1:3, and prepolymerize at water bath temperature until the viscosity is 180 centipoise , to become a binder for infrared absorbing coatings; then add 6% of the total weight of TiO to 60% of the binder 2 , 2.3% CuO, 0.9% CdTe, 1% MnO 2 The nano-particles can be used as an organic near-infrared absorber, and finally the organic near-infrared absorber and the remaining binder are fully mixed to form a visible infrared absorbing transparent coating.

[0015] The "invisibility cloak" made by printing the prepared coating on the cloth, the coating with infrared absorption function on the "invisibility cloak" can have a good shielding effect on the infrared rays released by the human body, and can effectively prevent "invisibility". Get out." That is to apply it on clothes to make a piece of infrared-absorbing clothing, which becomes a video stealth technolog...

Embodiment 2

[0024] Mix α-methacrylic acid, methyl methacrylate, azobisisobutyronitrile, and tributyl phosphate in a weight ratio of 1:12:1.5:2.5, and prepolymerize at the temperature of the water bath until the viscosity is 480 centipoise , to become a binder for infrared absorbing coatings; then add 9.2% of the total weight of TiO to the 50% binder 2 , 3% Cr 2 o 3 , 0.7% Fe 3 o 4 , 2.9% MnO 2 The nanoparticles of metal oxides are used as organic near-infrared absorbers, and finally the organic near-infrared absorbers and remaining binders are fully mixed to form visible light infrared absorbing transparent coatings.

[0025] Apply the prepared coating to building glass, automobile window glass, etc., the transmittance of visible light and the shielding rate of the near-infrared region of the coating can reach more than 80%. Sensitive infrared detectors cannot detect what is inside buildings or cars. And the coating also has the following characteristics:

[0026] 1. Excellent adhe...

Embodiment 3

[0031] Mix α-methacrylic acid, methyl methacrylate, azobisisobutyronitrile, and tributyl phosphate in a weight ratio of 2:10:1.5:4, and prepolymerize at water bath temperature until the viscosity is 300 centipoise , to become a binder for infrared absorbing coatings; then add 8.5% of the total weight of TiO to 45% of the binder 2 , 1.5% Fe 3 o 4 , 0.6% PbS, 0.9% MnO 2 The nano-particles can be used as an organic near-infrared absorber, and finally the organic near-infrared absorber and the remaining binder are fully mixed to form a visible light infrared absorbing transparent coating.

[0032] The prepared coating is a kind of infrared anti-counterfeiting ink. When it is printed on the commodity, the patterns, characters and other marks printed on the substrate are colorless and transparent. The detector can find the set anti-counterfeiting pattern. For example, a pair of poker cards with an ordinary appearance has a positive mark printed on the reverse side with infrared ...

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PUM

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Abstract

The invention relates to a kind of absorption transparent coating for visible and infrared light as well as its preparation and application. The coatings is prepared as follow: Firstly, it mixes alpha-methyl acrylate, methyl methacrylate, azobisisobutyronitrile, tributyl phosphate according to the ratio of 1-2:10-12:1-1.5:2-4, then it prepolymerizes them in water to a viscosity of 100 ~ 500cP to achieve the bonding agent of the infrared absorption coating. Secondly, it takes out 40%~60% of the above bonding agent and adds the nano-particles of TiO2, Fe3O4, MnO2, CuO, CdTe, PbS and / or Cr2O3 to achieve an organic near infrared absorber, then it mixes the organic near infrared absorber and the remaining bonding agent to achieve the visible infrared absorption transparent coating.

Description

technical field [0001] The invention relates to a visible light infrared absorbing transparent paint and its preparation method and application, belonging to the technical field of paint industry. Background technique [0002] The coatings industry is a technical industry system interrelated with petrochemicals, high-tech materials, energy transportation, machinery manufacturing and many other industries, and has always been regarded as an important "window" of the country's industrial development level. From daily necessities to state-of-the-art defense products, coatings are everywhere, whether it is on playing cards for people's daily entertainment, or in wartime camouflage coatings and aerospace weapon systems. In recent years, while foreign countries are researching and improving traditional absorbing coatings, stealth technology has been widely used in the weapon systems of developed countries, and has been listed as the basic element of "competitive strategy" as the p...

Claims

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Application Information

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IPC IPC(8): C09D133/02C09D133/08C09D7/12C09D5/32A41D13/01C09D11/02C09D11/50
Inventor 钱俊刘武辉黎厚斌马立胜
Owner HUBEI ZHONGXIN JINGHUA COLOR PRINTING
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