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Infrared camouflage paint as well as preparation method and application thereof

A stealth paint, infrared technology, applied in the field of infrared stealth paint and its preparation, can solve the problems of high emissivity of paint, limited application, high price, etc., and achieve the effects of simple synthesis, easy storage and low cost

Active Publication Date: 2014-03-05
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, tin-doped indium oxide (ITO), aluminum-doped zinc oxide (ZAO) and tin-doped antimony oxide (ATO) are the most researched, but the raw materials In and Sn for the preparation of ITO and ATO are expensive and highly toxic
The coating prepared by ZAO has a high emissivity and its application is limited
The lanthanum-based rare earth compound is a high-temperature superconducting thin film matrix material. The research on lanthanide compounds at home and abroad is mainly focused on electronic devices, high-temperature superconductivity and other applications. The research on its infrared stealth performance has not been reported so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation of aqueous lanthanum aluminate concentrate

[0028] Weigh 50 parts by weight of deionized as solvent, 10 parts by weight of wetting and dispersing agent CT-324 (Shanghai Sangjing Chemical Co., Ltd.), add them to the ball mill in turn and mix them evenly. The speed of the ball mill is 5000r / min; The lanthanum aluminate powder was placed in a ball mill for 24 hours, and the average particle size of the lanthanum aluminate powder was measured to be 130nm. After suction filtration and secondary grinding, an aqueous lanthanum aluminate concentrate with a solid phase mass percentage of 40wt% was prepared. Pulp.

[0029] (2) Preparation of coating agent dispersion

[0030] Weigh 13 parts by weight of deionized water as solvent, 85 parts by weight of waterborne polyurethane coating agent, and 2 parts by weight of aliphatic hydrocarbon emulsified defoamer, which are sequentially added to the ball mill for dispersion. The speed of the ball mill is 800r / min and the dispe...

Embodiment 2

[0034] (1) Preparation of aqueous lanthanum aluminate concentrate

[0035] Weigh 60 parts by weight of deionized as solvent, 8 parts by weight of wetting and dispersing agent Tilo-190 (Zhenjiang Tianlong Chemical Co., Ltd.), add them to the ball mill and mix them evenly, the speed of the ball mill is 4000r / min; The lanthanum aluminate powder was placed in a ball mill for 36 hours, and the average particle size of the lanthanum aluminate powder was measured to be 180nm. After suction filtration and secondary grinding, an aqueous lanthanum aluminate concentrate with a solid phase mass percentage of 30wt% was prepared. Pulp.

[0036] (2) Preparation of coating agent dispersion

[0037] Weigh 18 parts by weight of deionized water as solvent, 80 parts by weight of waterborne polyurethane coating agent, 2 parts by weight of aliphatic hydrocarbon emulsified defoamer, and then add them to the ball mill for dispersion. The speed of the ball mill is 600r / min and the dispersion time is 2h, ob...

Embodiment 3

[0041] (1) Preparation of aqueous magnesium-based lanthanum aluminate concentrate

[0042] Weigh 40 parts by weight of deionized as solvent, 15 parts by weight of wetting and dispersing agent EFKA-4585 (Guangzhou Yievka Company), add them to the ball mill and mix them evenly. The speed of the ball mill is 4000r / min; A portion of the magnesium-based lanthanum aluminate powder was placed in a ball mill for 12 hours, and the average particle size of the magnesium-based lanthanum aluminate powder was measured to be 200nm. After suction filtration and secondary grinding, a solid phase mass percentage of 40wt% was prepared. Aqueous magnesium-based lanthanum aluminate concentrate.

[0043] (2) Preparation of coating agent dispersion

[0044] Weigh 14 parts by weight of deionized water as solvent, 85 parts by weight of water-based polyurethane coating agent, 1 part by weight of defoamer containing hydrophobic particle mineral oil mixture, and then add them to the ball mill for dispersion. T...

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Abstract

The invention relates to infrared camouflage paint as well as a preparation method and an application thereof. The paint comprises filler, a coating agent and an additive. The preparation method comprises the following steps: mixing and ball-milling 30-90 parts by weight of solvent, 1-30 parts by weight of wetting dispersant and 5-60 parts by weight of filler, so as to obtain lanthanum-based rare earth compound powder concentrated pulp, ball-milling the solvent and the coating agent so as to obtain the ball-milled coating agent, and ball-milling the solvent, the lanthanum-based rare earth compound powder concentrated pulp and the ball-milled coating agent so as to obtain the infrared camouflage paint. According to the application of the infrared camouflage agent, the infrared stealth coating is added to a substrate by using a dipping, coating or padding method. The invention provides a novel low-emissivity material, namely the infrared camouflage paint, not only are materials for the paint easy to obtain, but also the paint is simple to operate, relatively low in cost, capable of effectively pretending and shielding human bodies, glass, polymer films, military weapons and the like and reducing the possibility that the articles are detected by infrared detectors, and has a good application prospect.

Description

Technical field [0001] The invention belongs to the field of camouflage paint and its preparation and application, and particularly relates to an infrared stealth paint and a preparation method and application thereof. Background technique [0002] With the emergence of advanced reconnaissance and detection technologies such as thermal imaging cameras, infrared imaging technology has been highly valued and widely used in the military for its features such as day and night work, high precision, long range, passive work, and good concealment. Of course, this inevitably poses a serious threat to individual soldiers and weapons and equipment. Therefore, the development of infrared camouflage materials or infrared camouflage technology with higher performance is an effective guarantee for improving the survivability and safety of individual soldiers on the battlefield and enhancing the combat effectiveness of the troops. [0003] According to Stephen-Boltzmann's law analysis, the infra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D131/04C09D133/00C09D123/16C09D7/12C09D5/00D06M15/564D06M11/45D06M101/06
Inventor 毛志平王薇张琳萍徐红钟毅方帅军余喜理
Owner DONGHUA UNIV
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