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Infrared radar double-stealth film material and preparation method thereof

A thin-film material and radar technology, which is applied in the field of infrared radar double-stealth thin-film material and its preparation, can solve the problems of poor electromagnetic loss effect, poor stealth effect, and low infrared emissivity, and achieve large electromagnetic loss and excellent radar stealth effect, the effect of low infrared radiation rate

Active Publication Date: 2020-12-25
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The infrared emissivity ε of the existing low-infrared radiation materials is not low enough, and the smooth surface of the material is prone to glare when exposed to visible light, so the actual stealth effect is not very good
The key to radar stealth is to increase the electromagnetic loss of radar waves. However, the existing radar stealth materials have poor electromagnetic loss effects and cannot fully meet the needs of practical applications.

Method used

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  • Infrared radar double-stealth film material and preparation method thereof
  • Infrared radar double-stealth film material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A kind of functionalized polystyrene microsphere, its preparation method comprises the following steps:

[0047] 1) Disperse 20 parts by mass of styrene and 1 part by mass of cetyltrimethylammonium bromide in 58 parts by mass of ethanol solution (mass fraction 95%), stir and emulsify for 20 minutes under a nitrogen atmosphere to obtain an emulsion , heated up to 70°C, then added 0.5 parts by mass of azobisisobutyronitrile and 1.5 parts by mass of vinyltrimethoxysilane, reacted at 70°C for 12 hours, cooled, filtered with suction, washed the filtered solid with ethanol and distilled water, Then place it in an oven to dry at 50°C to obtain hydrophilic modified polystyrene microspheres;

[0048] 2) Disperse 2.5 parts by mass of hydrophilic modified polystyrene microspheres in 65 parts by mass of SnCl with a concentration of 12g / L 2 solution, and then adjust the SnCl with concentrated hydrochloric acid 2 The pH of the solution was 1, stirred and sensitized for 30 minutes, ...

Embodiment 2

[0055] A kind of functionalized polystyrene microsphere, its preparation method comprises the following steps:

[0056] 1) Disperse 24 parts by mass of styrene and 1 part by mass of cetyltrimethylammonium bromide in 65 parts by mass of ethanol solution (95% mass fraction), stir and emulsify for 15 minutes under a nitrogen atmosphere to obtain an emulsion , heated up to 70°C, then added 1.1 parts by mass of azobisisobutyronitrile and 2.2 parts by mass of vinyltrimethoxysilane, reacted at 70°C for 12 hours, cooled, filtered with suction, washed the filtered solid with ethanol and distilled water, Then place it in an oven to dry at 50°C to obtain hydrophilic modified polystyrene microspheres;

[0057] 2) Disperse 2 parts by mass of hydrophilic modified polystyrene microspheres in 70 parts by mass of SnSO with a concentration of 10 g / L 4 solution, and then adjust the SnSO with concentrated hydrochloric acid 4 The pH of the solution was 1, stirred and sensitized for 30 minutes, f...

Embodiment 3

[0064] A kind of functionalized polystyrene microsphere, its preparation method comprises the following steps:

[0065] 1) Disperse 28 parts by mass of styrene and 1 part by mass of cetyltrimethylammonium bromide in 70 parts by mass of ethanol solution (mass fraction 95%), stir and emulsify for 25 minutes under a nitrogen atmosphere to obtain an emulsion , heated up to 70°C, then added 1.2 parts by mass of azobisisobutyronitrile and 1.8 parts by mass of vinyltrimethoxysilane, reacted at 70°C for 12 hours, cooled, filtered with suction, washed the filtered solid with ethanol and distilled water, Then place it in an oven to dry at 50°C to obtain hydrophilic modified polystyrene microspheres;

[0066] 2) Disperse 3.5 parts by mass of hydrophilic modified polystyrene microspheres in 70 parts by mass of SnF with a concentration of 10g / L 2 solution, and then use concentrated hydrochloric acid to adjust the SnF 2 The pH of the solution was 1, stirred and sensitized for 30 minutes, ...

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Abstract

The invention discloses an infrared radar double-stealth thin-film material and a preparation method thereof. The infrared radar double-stealth thin-film material comprises a thin polymer film and functionalized polystyrene microspheres fixed to the surface of the thin polymer film through infrared transmitting ink, and each functionalized polystyrene microsphere comprises a polystyrene microsphere body and a metal layer coating the exterior of the polystyrene microsphere body. The preparation method for the infrared radar double-stealth thin-film material comprises the following steps that the infrared transmitting ink and the functionalized polystyrene microspheres are mixed to prepare a mixed solution, then the mixed solution is sprayed onto the thin polymer film, and drying is carriedout so as to obtain the infrared radar double-stealth thin-film material. The infrared radar double-stealth thin-film material has the advantages that the infrared radiance is low, the radar wave electromagnetic loss is large, in addition, the glare phenomenon is avoided, infrared stealth, radar stealth and glare prevention are integrated, and the material can be used for infrared stealth of nightwarfighters, armors and vehicles, and can also be used for friend or foe identity recognition and night air-drop goods and material searching.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to an infrared radar double-stealth film material and a preparation method thereof. Background technique [0002] With the rapid development of electronic countermeasures technology, whoever discovers and destroys the opponent first has become the key to victory. Information acquisition and anti-acquisition have become the focus of the struggle. Discovering and attacking the enemy first have become important safeguards for defeating the enemy. Infrared and radar are the most important and commonly used technologies in guidance technology and military detection. Infrared stealth technology is an important means of reconnaissance and anti-reconnaissance in the military. The application of infrared stealth technology can reduce the possibility of targets being detected by infrared thermal imaging cameras, which can effectively prevent the exposure of one's own military for...

Claims

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Application Information

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IPC IPC(8): F41H3/00C09D5/00
CPCF41H3/00C09D5/00
Inventor 徐常威屈俊任
Owner GUANGZHOU UNIVERSITY
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