Wave-absorbing biomimetic composite material and preparation method

A biomimetic composite material and technology of biomimetic materials are applied in the field of wave absorbing biomimetic composite materials and their preparation

Inactive Publication Date: 2017-05-31
合肥昊泰新材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned artificial grass only has wave-absorbing materials that can absorb radar waves to achieve the purpose of radar stealth, and has no materials and processing methods that have both radar, visible light and infrared stealth properties, which has great limitations.

Method used

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  • Wave-absorbing biomimetic composite material and preparation method
  • Wave-absorbing biomimetic composite material and preparation method
  • Wave-absorbing biomimetic composite material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Weigh the raw materials of each component in parts by weight, add 1 part of polyvinyl alcohol water-soluble polymer into 250 mL of deionized water to dissolve to make a polyvinyl alcohol solution;

[0038] (2) Dissolve 1 part of lithium chloride, 2 parts of L-malic acid, 5 parts of acetic acid, 2 parts of chromium oxide green in the above polyvinyl alcohol solution, and undergo cross-linking reaction for 5 hours at a temperature of 60°C , Made into casting film liquid;

[0039] (3) Take out the casting liquid in step (2), put it in an oven and heat it to 80℃ for 1 hour to promote the cross-linking of polyvinyl alcohol, then evacuate and defoam and spread it on the customized board, vacuum and defoam. Including: putting the casting solution in a suction filter flask or vacuum oven to evacuate, then place it at room temperature and let it stand in a sealed state for 18h;

[0040] (4) Heat the customized board in a constant temperature and humidity box at a temperature of 40...

Embodiment 2

[0046] (1) Weigh the raw materials of each component in parts by weight, and add 4 parts of polyvinyl alcohol water-soluble polymer into 250 mL of deionized water to dissolve to make a polyvinyl alcohol solution;

[0047] (2) Dissolve 3 parts of lithium chloride, 6 parts of L-malic acid, 5.5 parts of acetic acid, 4 parts of chromium oxide green in the above polyvinyl alcohol solution, and undergo a cross-linking reaction for 5.5 hours at a temperature of 75°C , Made into casting film liquid;

[0048] (3) Take out the casting liquid in step (2), put it in an oven and heat it to 90℃ for 1.2h to promote the cross-linking of polyvinyl alcohol, then evacuate and defoam, then lay it flat on the custom board, and defoam by vacuum It specifically includes: putting the casting solution in a suction filter flask or a vacuum oven to evacuate, and then place it at room temperature to seal and stand for 21 hours;

[0049] (4) Heat the customized board in a constant temperature and humidity box a...

Embodiment 3

[0055] (1) Weigh the raw materials of each component in parts by weight, and add 8 parts of polyvinyl alcohol water-soluble polymer into 250 mL of deionized water to dissolve to make a polyvinyl alcohol solution;

[0056] (2) Dissolve 7 parts of lithium chloride, 9 parts of L-malic acid, 6 parts of acetic acid, and 6 parts of chromium oxide green in the above polyvinyl alcohol solution, and undergo a crosslinking reaction for 6 hours at a temperature of 90°C , Made into casting film liquid;

[0057] (3) Take out the casting liquid in step (2), put it in an oven and heat it to 100°C for 1.5h to promote the crosslinking of polyvinyl alcohol, then evacuate and defoam, then lay it flat on the customized board, and defoam by vacuum It specifically includes: placing the casting solution in a suction filter flask or a vacuum oven to evacuate, and then place it at room temperature to seal and stand for 24 hours;

[0058] (4) Heat the customized board in a constant temperature and humidity b...

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Abstract

The invention discloses a wave-absorbing biomimetic composite material and a preparation method. The wave-absorbing biomimetic composite material is prepared from an organic biomimetic material and a wave-absorbing material, wherein the organic biomimetic material is sheaf-like planted on the wave-absorbing material; the organic biomimetic material is prepared from the following components in parts by weight: 1 to 8 parts of polyvinyl alcohol water-soluble polymer, 1 to 7 parts of metal chloride, 2 to 6 parts of colouring agent, 2 to 9 parts of cross-linking agent, and 5 to 6 parts of catalyst. The wave-absorbing biomimetic composite material simulates plant appearance, spectral reflectance and radar wave absorption characteristics so as to achieve the aims of infrared, spectral imaging camouflage, woodland background visual camouflage and radar camouflage.

Description

Technical field [0001] The invention belongs to the technical field of polymer materials, and specifically relates to a wave-absorbing bionic composite material and a preparation method. The wave-absorbing bionic composite material simulates plant appearance, spectral reflection and radar wave absorption characteristics to achieve both infrared and spectral imaging camouflage and woodland Background visible light camouflage and radar stealth purpose. Background technique [0002] With the development of modern science and technology, the impact of electromagnetic radiation on the environment is increasing. At the airport, the flight cannot take off due to electromagnetic wave interference, and it is delayed; at the hospital, mobile phones often interfere with the normal operation of various electronic diagnosis and treatment equipment. Therefore, the treatment of electromagnetic pollution and the search for a material that can withstand and weaken electromagnetic wave radiation-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08K13/02C08K3/16C08K5/092C08K3/22C08J3/24C08J5/12C09K3/00
CPCC08K13/02C08J3/247C08J5/12C08J2329/04C08K3/16C08K3/22C08K5/092C08K2003/2251C09K3/00C08L29/04
Inventor 郭晓康郭春才张志良徐承进
Owner 合肥昊泰新材料科技有限责任公司
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