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A kind of preparation method of infrared absorbing material and the coating that can be used for infrared stealth

A technology of absorbing materials and infrared rays, which is applied in the preparation/processing of radiation-absorbing coatings, rare earth metal compounds, polyurea/polyurethane coatings, etc. It can solve the problems of inconvenient operation and pollution of solvent-based coatings, and achieve uniform distribution and wide application. Foreground, the effect of low infrared emissivity

Active Publication Date: 2020-08-28
JIANGSU HAOYUE PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Most of the infrared stealth coatings currently researched are solvent-based, but solvent-based coatings are inconvenient to operate and cause serious pollution. Water-based coatings must be the future development trend
There are few domestic reports on water-based infrared stealth coating materials

Method used

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  • A kind of preparation method of infrared absorbing material and the coating that can be used for infrared stealth
  • A kind of preparation method of infrared absorbing material and the coating that can be used for infrared stealth

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A method for preparing an infrared absorbing material, specifically: adding 16.82 g of samarium nitrate and 2.25 g of glycine into a container, then adding 400 ml of distilled water and 2 g of SRE-4010-100, ultrasonically dispersed for 45 minutes, and then adding a mass concentration of 30% 20ml of yttrium nitrate aqueous solution, continue to ultrasonically disperse for 50min, add 10ml of concentrated ammonia water drop by drop at 65°C water bath, react for 6h, then transfer to muffle furnace for high-temperature calcination, the calcination temperature is 1000°C, take it out for grinding after calcination, Pass through a 800-mesh sieve to get the infrared absorbing material.

[0034] A coating that can be used for infrared stealth, including infrared absorbing material, water-based acrylic resin, water-based polyurethane resin, nano hollow ceramic microspheres, dispersant 3218, NP-10, and hydroxypropyl methylcellulose;

[0035] The preparation method comprises the fol...

Embodiment 2

[0040] A method for preparing an infrared absorbing material, specifically: adding 16.82g of samarium nitrate and 2.25g of glycine into a container, then adding 600ml of distilled water and 2g of YF-02, ultrasonically dispersing for 40min, and then adding nitric acid with a mass concentration of 35% 20ml of yttrium aqueous solution, continue to ultrasonically disperse for 50min, add 15ml of 32.5% urea aqueous solution drop by drop at 70°C water bath, react for 5h, then transfer to muffle furnace for high-temperature calcination, calcination temperature is 1050°C, after calcination, take it out for grinding , through a 800-mesh sieve, the infrared absorbing material can be obtained.

[0041] A coating that can be used for infrared stealth, including infrared absorbing material, water-based acrylic resin, water-based polyurethane resin, nano hollow ceramic microspheres, dispersant 3218, NP-10, and hydroxypropyl methylcellulose;

[0042] The preparation method comprises the follo...

Embodiment 3

[0047] A method for preparing an infrared absorbing material, specifically: adding 16.82g of samarium nitrate and 2.25g of glycine into a container, then adding 400ml of distilled water and 2g of P-105, ultrasonically dispersing for 60min, and then adding nitric acid with a mass concentration of 40% 20ml of yttrium aqueous solution, continue ultrasonic dispersion for 60min, keep warm in a water bath at 60°C, add 15ml of concentrated ammonia water drop by drop, react for 8h, then transfer to a muffle furnace for high-temperature calcination, the calcination temperature is 1030°C, after the calcination, take it out and grind it, after 800 Mesh sieve, the infrared absorbing material can be obtained.

[0048] A coating that can be used for infrared stealth, including infrared absorbing material, water-based acrylic resin, water-based polyurethane resin, nano hollow ceramic microspheres, dispersant 3218, NP-10, and hydroxypropyl methylcellulose;

[0049] The preparation method comp...

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Abstract

The invention provides a preparation method of an infrared absorption material and a coating capable of being used for infrared stealth and relates to the field of infrared absorption materials. The preparation method concretely comprises the following steps of putting samarium nitrate and glycine in a vessel, then adding distilled water and a dispersant, performing ultrasonic dispersion for 40-60min, then adding a yttrium nitrate aqueous solution, continuously performing ultrasonic dispersion for 40-60min, performing thermal insulation on a water bath of 60-70 DEG C, dropwise adding a precipitator, performing reaction for 4-8h, then transferring a reactant into a muffle furnace for high-temperature calcining with the calcining temperature being 1000-1050 DEG C, taking out a product for grinding after calcining is finished, and sieving the ground product with a 800-mesh sieve, wherein the obtained product can well absorb infrared rays emitted by a human body or the external. The infrared absorption material provided by the invention can be uniformly distributed in an infrared stealth coating, is good in coating adhesion force and low in infrared emission rate, has various mechanical properties capable of reaching the use requirements and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of infrared absorbing materials, in particular to a preparation method of infrared absorbing materials and a coating that can be used for infrared stealth. Background technique [0002] The propagation of infrared radiation in the atmosphere follows the laws of refraction, reflection, absorption, and scattering of visible light, and has the general physical characteristics of light. Its transmission ability in the atmosphere is related to the content of water and carbon dioxide in the atmosphere. [0003] When an object emits infrared radiation, the water and carbon dioxide in the atmosphere will absorb the radiation of a certain band and attenuate the infrared radiation signal of this band. The bands that are not absorbed pass through the atmosphere without attenuation, and such bands are called atmospheric windows. [0004] The infrared atmospheric window is divided into four, namely near infrared (0.76-3μm), mid-i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D175/04C09D5/32C09D7/61C09D7/65C01F17/241C01F17/10
CPCC01F17/206C08K2003/221C08K2201/011C08L2205/03C09D5/32C09D7/61C09D7/65C09D7/70C09D133/00C09D175/04C08L75/04C08L1/284C08K7/24C08K3/22C08L33/00
Inventor 章立兰
Owner JIANGSU HAOYUE PAINT
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