Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A water-based optical stealth coating material

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

Active Publication Date: 2021-01-26
HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
View PDF12 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: Preparation of water-based medium green optical stealth coating

[0022] (1) High performance rare earth europium modified ceramic pigments

[0023] 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, keep it warm for 50 minutes; then set the temperature at 1300°C, with a heating rate of 10°C / min, and keep it warm for 2 hours after the temperature rises to 1300°C to obtain a green blocky product. After the product is naturally cooled, it is ground to a fineness of 500 meshes, washed three times with 10 wt% dilute sulfuric acid, rinsed twice with deionized water, and dried for later use.

[0024] (2) A component of water-based medium green optical stealth paint

[0025] a. Add 2.5 parts of dispersant, 0.3 part of defoame...

Embodiment 2

[0031] Embodiment 2: Preparation of water-based dark green optical stealth coating

[0032] (1) High performance rare earth europium modified ceramic pigments

[0033] 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, keep it warm for 30 minutes; then set the temperature at 1000°C, with a heating rate of 15°C / min, and keep it warm for 3 hours after the temperature rises to 1000°C, 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, dried and used for later use.

[0034] (2) A component of water-based dark green optical stealth coating

[0035] a. Add 2.0 parts of dispersant, 0.5...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a water-based optical stealth coating material. The coating material contains two colors of medium green and dark green, and is prepared by using high-performance ceramic pigments, resins and other pigments and fillers. The high-performance ceramic pigments are made of rare earth europium compounds, chromium oxide and zinc oxide through efficient grinding, Sintered at high temperature. The coating material has a simple preparation process, a moderate price, is environmentally friendly, has hyperspectral stealth capabilities in visible light and near-infrared bands, and can be widely used in camouflage protection in military equipment, command sites, radar communications, and other fields.

Description

technical field [0001] The invention specifically relates to a water-based optical stealth coating material, which belongs 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 preparation method" provided...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com