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Aqueous optical stealth coating material and preparation method thereof

A coating material and optical technology, applied in the field of camouflage and stealth, can solve the problems of unable to meet the requirements of hyperspectral, large amount of solvent, low fitting degree, etc., achieve obvious light scattering effect, improve the stealth effect, and the gloss of the coating film low effect

Active Publication Date: 2019-03-26
HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country started late in this industry, and basically still uses conventional pigments as camouflage colors, which have a low degree of fitting with the background environment, and it is difficult to meet the military needs of combating broadband, especially hyperspectral detection.
[0003] In the patent 201410150254.1, which provides a "anti-visible light and near-infrared detection fluorocarbon optical camouflage coating and its preparation method", the coating only has a stealth function in the visible and near-infrared bands, which cannot meet the requirements of hyperspectral, and the amount of solvent is large. Not environmentally friendly
Patents 201610524797.4 and 201510208621.3 respectively disclose new heat-insulating hollow ceramic microsphere infrared camouflage coating materials and anti-corrosion wave-absorbing stealth coatings, but they are difficult to resist visible light and near-infrared detection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Preparation of water-based medium green optical stealth coating

[0023] (1) High performance rare earth europium modified ceramic pigments

[0024] Add 1 mol of chromium oxide, 1 mol of europium oxide, and 1 mol of zinc oxide into the ball mill, ball mill at 4000r / min for 3 hours, then put it into a tube furnace for sintering, set the initial temperature to 600°C, and the heating rate to 10°C / min. After the temperature rises to 600°C, it is kept for 50 minutes; then the temperature is set at 1300°C, and the heating rate is 10°C / min. After the temperature rises to 1300°C, it is kept for 2 hrs to obtain a green blocky product. After the product is naturally cooled, it is ground to a fineness of 500 mesh, washed 3 times with 10wt% dilute sulfuric acid, rinsed 2 times with deionized water, and dried for later use.

[0025] (2) A component of water-based medium green optical stealth paint

[0026] a. Add 2.5 parts of dispersant, 0.3 part of defoamer, 0.7 par...

Embodiment 2

[0032] Embodiment 2: Preparation of water-based dark green optical stealth coating

[0033] (1) High performance rare earth europium modified ceramic pigments

[0034] Add 3 mol of chromium oxide, 1 mol of europium oxide, and 1 mol of zinc oxide into the ball mill, ball mill for 1 hr at a speed of 5000r / min, and then put it into a tube furnace for sintering, set the initial temperature to 700°C, and the heating rate to 15°C / min. After the temperature rises to 700°C, it is kept for 30 minutes; then the temperature is set at 1000°C, and the heating rate is 15°C / min. After the temperature rises to 1000°C, it is kept for 3 hrs to obtain a green blocky product. After the product is naturally cooled, it is ground to a fineness of 800 meshes, washed twice with 20 wt% dilute sulfuric acid, rinsed three times with deionized water, and dried for later use.

[0035] (2) A component of water-based dark green optical stealth coating

[0036] a. Add 2.0 parts of dispersant, 0.5 parts of d...

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PUM

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Abstract

The invention provides an aqueous optical stealth coating material and a preparation method thereof. The coating material comprises two colors of medium green and dark green and is prepared by using ahigh-performance ceramic pigment, a resin and other pigments, wherein the high-performance ceramic pigment is formed by efficient grinding and high-temperature sintering of rare earth europium compounds, chromium oxide and zinc oxide. The coating material is simple in preparation process, moderate in price, green and environment-friendly, has hyperspectral stealth capability in visible light andnear-infrared bands, and can be widely used in camouflage protection in the field of military equipment, command places and radar communication.

Description

technical field [0001] The invention specifically relates to a water-based optical stealth coating material and a preparation method thereof, belonging to the technical field of camouflage and stealth. Background technique [0002] Since the mid-1980s, Western countries led by the United States have successively been involved in the research of stealth technology, stepping up the screening of new adhesives and coloring pigments. At present, a number of practical materials have been developed, which are suitable for visible light and near-infrared bands. Stealth paint. my country started late in this industry, and basically still uses conventional pigments as camouflage colors, which have a low degree of fitting with the background environment, and it is difficult to meet the military needs of combating broadband, especially hyperspectral detection. [0003] In patent 201410150254.1, a "visible light and near-infrared detection fluorocarbon optical camouflage coating and its...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/61C09D5/30
CPCC09D5/30C09D175/04C09D7/61C08K3/013
Inventor 袁欢欢张刚李学超
Owner HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
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