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

Low-cost coating with self-cleaning and infrared broadband hiding functions, preparation method and application of coating

A self-cleaning, dual-function technology, applied in electrical components, antennas, etc., can solve the problems of inability to achieve broadband stealth, stealth materials do not have self-cleaning functions, etc., to achieve a wide range of practical promotion value, strong repairability, expansion Application-wide effects

Inactive Publication Date: 2015-02-04
UNIV OF SCI & TECH OF CHINA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of invisible materials that do not have the self-cleaning function and the inability to achieve broadband invisibility, the coating has the effect of infrared stealth and self-cleaning at the same time, so that the coating has good anti-fouling, anti-corrosion, and anti-corrosion properties outdoors. Performance of Freezing Hazards

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-cost coating with self-cleaning and infrared broadband hiding functions, preparation method and application of coating
  • Low-cost coating with self-cleaning and infrared broadband hiding functions, preparation method and application of coating
  • Low-cost coating with self-cleaning and infrared broadband hiding functions, preparation method and application of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Immerse the galvanized engineering material tinplate in a 4mol / L hydrogen ion hydrochloric acid solution for 30 seconds, then take out the corroded galvanized engineering material, rinse it repeatedly with deionized water, and dry it with nitrogen; Micron-scale periodic groove structure;

[0038] (2) Use a magnetron sputtering apparatus to sputter a layer of ZnO seed crystal layer on the surface of the corroded galvanized engineering material for growing ZnO nanorods; the thickness of the seed crystal layer is controlled at about 10nm;

[0039] (3) Put the sample into the muffle furnace for annealing at 550℃ for 1h;

[0040](4) Soak the sample sputtered with a ZnO seed layer into a mixed solution of zinc acetate and hexamethylenetetramine, the ratio of the two substances is 0.5:1, and the concentration of zinc acetate is 0.01mol / L. In the case of 90 ℃ water bath reaction 2h. An array of nanoscale ZnO rods was grown.

[0041] (5) On the ZnO surface, a layer of l...

Embodiment 2

[0045] (1) Soak the white iron sheet of the galvanized engineering material in 1mol / L hydrogen ion sulfuric acid solution for 10 seconds, then take out the corroded galvanized engineering material, rinse it with deionized water, and dry it with nitrogen; this process grows micron The periodic gully structure of the level;

[0046] (2) Use a magnetron sputtering apparatus to sputter a layer of ZnO seed crystal layer on the surface of the corroded galvanized engineering material for growing ZnO nanorods; the thickness of zinc oxide is controlled at about 10nm;

[0047] (3) Put the sample into a muffle furnace for annealing at 200°C for 30 minutes;

[0048] (4) Soak the sample sputtered with a ZnO seed layer into a mixed solution of zinc acetate and hexamethylenetetramine, the ratio of the two substances is 2:1, and the concentration of zinc acetate is 0.2mol / L, reacted in a water bath at 50°C for 4h. An array of nanoscale ZnO rods was grown.

[0049] (5) A layer of low surfa...

Embodiment 3

[0053] (1) Soak galvanized engineering materials zinc and aluminum in 10mol / L hydrogen ion hydrochloric acid solution for 120 seconds, then take out the corroded galvanized engineering materials, rinse them repeatedly with deionized water, and dry them with nitrogen; this process A micron-scale periodic trench structure is grown;

[0054] (2) Zinc oxide seed layer prepared by liquid phase epitaxy: use spin coating technology to evenly spin coat 1-3% ethanol solution of amorphous zinc acetate at a speed of 3000rpm on the surface of the cleaned material, and in the muffle furnace The temperature was raised to 150°C for 10 minutes at a constant temperature, and then the temperature was raised to 325°C for 30 minutes at a constant temperature to obtain a relatively uniform zinc oxide seed layer; (The constant temperature reaction at high temperature in this step is the annealing process.)

[0055] (3) Soak the sample sputtered with a ZnO seed layer into a mixed solution of zinc ac...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
contact angleaaaaaaaaaa
angleaaaaaaaaaa
Login to View More

Abstract

The invention provides a low-cost coating with self-cleaning and infrared broadband hiding functions. The surface of the low-cost coating is provided with a micro nanometer composite structure, wherein the micro nanometer composite structure comprises a micron wormlike structure having the surface corroded by a zinc-plating material and a ZnO flower-like nanorod structure grown on the micron wormlike structure. The invention further provides a preparation method of the coating. According to the preparation method, the manners of once corroding and chemical bath growing are adopted, the micro nanometer composite structure having bionic features is prepared on the surface of a zinc-plating engineering material, and common paints are combined, so that the capacities of fouling resistance, corrosion resistance and freezing disaster resistance of the coating outdoors are improved, and the coating further has a broadband infrared hiding effect. The method provided by the invention has the superiorities of convenience, feasibility, low cost and the like, and has wide application foregrounds in the fields of infrared hiding and engineering material protection.

Description

technical field [0001] The invention belongs to the field of infrared stealth materials, and particularly relates to a low-cost coating with dual functions of self-cleaning and infrared broadband stealth, and a preparation method and application thereof. Background technique [0002] With the development of science and technology, more and more high-tech equipment has been applied to the field of military operations, especially the use of infrared detectors. Infrared detectors can be used to detect enemy targets at night and when there are obstacles, which greatly improves the combat capability of the troops. At the same time, research on stealth materials for infrared wire shielding and absorption has also emerged. There are usually two schemes for preparing stealth coatings: one is to use chiral wave absorbing coatings to achieve stealth effect by absorbing infrared rays; the other method is to achieve stealth effect by scattering incident infrared rays. At present, the ...

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): H01Q17/00
Inventor 许小亮杨周刘增远王会杰窦文杰吴祺恺邹洪洋
Owner UNIV OF SCI & TECH OF CHINA
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