Preparation method of carbon powder combined broadband compound wave-absorbing material

A technology of wave absorbing material and composite carbon, applied in the field of material processing, can solve the problems of insufficiency and narrow frequency band, and achieve the effect of improving wave absorbing performance, high absorption rate and good flexibility

Inactive Publication Date: 2020-02-07
安徽璜峪电磁技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Features such as widening the frequency band, high efficiency, no increase in negative weight, and the ability to form parts with various complex shapes are the main development directions of wave-absorbing materials at present. the needs of some occasions

Method used

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  • Preparation method of carbon powder combined broadband compound wave-absorbing material
  • Preparation method of carbon powder combined broadband compound wave-absorbing material
  • Preparation method of carbon powder combined broadband compound wave-absorbing material

Examples

Experimental program
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Effect test

Embodiment 1

[0022] A preparation method of composite carbon powder broadband composite wave-absorbing material, which is composed of a wave-absorbing patch, a wave-absorbing honeycomb and a high-transmission skin, wherein the wave-absorbing honeycomb intercalation layer is formed between the wave-absorbing patch and the high-transmission skin Between the two, it can be fixed by adhesive bonding;

[0023] The wave-absorbing honeycomb is in the shape of a truncated hammer.

[0024] The wave-absorbing patch is a silica gel wave-absorbing patch, and its preparation method is:

[0025] Take 880 parts by weight of carbonyl iron powder absorbent, 95 parts of silica gel and 1 part of silica gel vulcanizing agent, knead them evenly with a two-roller machine, pack them out to make 10mm prefabricated sheets, and then put them into a vacuum plate Vulcanize and mold in a vulcanizing machine, the vulcanization condition is 150°C, vulcanize for 900 seconds, and make a silicone wave-absorbing patch with...

Embodiment 2

[0035] A preparation method of composite carbon powder broadband composite wave-absorbing material, which is composed of a wave-absorbing patch, a wave-absorbing honeycomb and a high-transmission skin, wherein the wave-absorbing honeycomb intercalation layer is formed between the wave-absorbing patch and the high-transmission skin Between the two, it can be fixed by adhesive bonding;

[0036] The wave-absorbing honeycomb is in the shape of a truncated hammer.

[0037] The wave-absorbing patch is a silica gel wave-absorbing patch, and its preparation method is:

[0038] Take 920 parts by weight of carbonyl iron powder absorbent, 102 parts of silica gel and 3 parts of silica gel vulcanizing agent, knead evenly with a two-roller machine, pack out the sheets, and make 10mm prefabricated sheets, and then put them into a vacuum plate Vulcanization molding in a vulcanizing machine, the vulcanization condition is 150 ° C, vulcanization for 900 seconds, and a silicone wave-absorbing p...

Embodiment 3

[0049] A preparation method of composite carbon powder broadband composite wave-absorbing material, which is composed of a wave-absorbing patch, a wave-absorbing honeycomb and a high-transmission skin, wherein the wave-absorbing honeycomb intercalation layer is formed between the wave-absorbing patch and the high-transmission skin Between the two, it can be fixed by adhesive bonding;

[0050] The wave-absorbing honeycomb is in the shape of a truncated hammer.

[0051] The wave-absorbing patch is a silica gel wave-absorbing patch, and its preparation method is:

[0052] Take 900 parts by weight of carbonyl iron powder absorbent, 99 parts of silica gel and 2 parts of silica gel vulcanizing agent, knead them evenly with a two-roller machine, pack them out to make 10mm prefabricated sheets, and then put them into a vacuum plate Vulcanize and mold in a vulcanizing machine, the vulcanization condition is 150°C, vulcanize for 900 seconds, and make a silicone wave-absorbing patch wit...

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Abstract

The invention discloses a preparation method of a carbon powder combined broadband compound wave-absorbing material and relates to the technical field of material processing. The compound wave-absorbing material is formed by compounding of an absorbing patch, an absorbing honeycomb and a high-transmission skin, wherein the absorbing honeycomb is intercalated between the absorbing patch and the high-transmission skin and is fixed by an adhesive. The invention provides a preparation method of the carbon powder combined broadband compound wave-absorbing material, which is characterized in that the frequency band for absorbing electromagnetic waves is extremely wide and the coverage frequency is 0.1 to 40 GHz.

Description

technical field [0001] The invention belongs to the technical field of material processing, and in particular relates to a method for preparing a composite carbon powder broadband composite wave-absorbing material. Background technique [0002] With the rapid development of modern electronic science and technology, it can be predicted that future wars will inevitably become high-tech contests. Therefore, information acquisition and anti-acquisition will become the focus of war. Therefore, in order to improve the penetration capability of strategic weapons and equipment systems and strengthen the survival and combat effectiveness of militarized weapons, all major military countries in the world are striving to develop the stealth of their weapons and equipment. Therefore, the study of stealth technology has become one of the important directions of the development of modern military technology in the world. Stealth technology refers to changing the radiation characteristics ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q17/00C09D175/04C09D5/32B32B17/04B32B17/06B32B25/20B32B7/12B32B3/08B32B37/12
CPCB32B3/085B32B5/02B32B7/12B32B25/10B32B25/20B32B37/1284B32B2262/101B32B2307/20B32B2307/302B32B2307/306B32B2307/3065B32B2307/308C09D5/32C09D175/04H01Q17/00C08K3/18
Inventor 夏纲锋
Owner 安徽璜峪电磁技术有限公司
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