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High-performance silicon-based wave absorbing material and preparation method thereof

A wave absorbing material and high-performance technology, applied in the field of high-performance silicon-based wave absorbing material and its preparation, can solve the problems of easy aging, high and low temperature resistance, etc., and achieve easy processing, good oxidation resistance, and excellent weather resistance. sexual effect

Inactive Publication Date: 2012-07-18
SHENZHEN DARBOND INTERFACE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the high-grade base materials of absorbing materials on the market mainly use natural rubber, polyurethane, nitrile rubber, butyl rubber, etc., but they have the disadvantages of not being resistant to high and low temperatures and being easy to age.

Method used

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  • High-performance silicon-based wave absorbing material and preparation method thereof
  • High-performance silicon-based wave absorbing material and preparation method thereof
  • High-performance silicon-based wave absorbing material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1～3

[0033] (1) Prepare raw materials

[0034] aSilicone rubber

[0035] Among them: a1 methyl silicone rubber

[0036] a2 methyl vinyl silicone rubber

[0037] a3. Methylphenyl vinyl silicone rubber

[0038] a4. Methyl vinyl trifluoropropyl silicone rubber

[0039] b Silane coupling agent A-172

[0040] c vulcanizing agent

[0041] Where: c1 DCBP c2 DCP c3 DBPMH

[0042] d flame retardant

[0043] Among them: d1 magnesium hydroxide d2 aluminum hydroxide

[0044] e absorbent

[0045] Among them: e1 hydroxyl iron powder (average particle size 25μm)

[0046] e2 iron alloy powder (average particle size 60μm)

[0047] e3 ferrite powder (average particle size 60μm)

[0048] The above-mentioned powders were prepared according to the proportions shown in Table 1, and then the absorbent after the preparation was surface-treated by a wet method to obtain an absorbent powder coated with a layer of silane coupling agent on the surface.

[0049] (2) Put the above-mentioned componen...

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Abstract

The invention relates to a high-performance silicon-based wave absorbing material and a preparation method thereof. The high-performance silicon-based wave absorbing material comprises the following raw materials in percentage by weight: 12-16 percent of silicon rubber, 0.005-1 percent of a silane coupling agent, 0.6-1.2 percent of a vulcanizing agent, 3-5 percent of a flame retardant and 76.8-84.4 percent of an absorbent. The method comprises the following steps of: drying the absorbent, and grading the particle diameter of the absorbent; coating the absorbent; and mixing. The high-performance silicon-based wave absorbing material disclosed by the invention has excellent electric and physical properties, aging resistance, high and low temperature resistance and the like, and can be applied to military electronic equipment such as aviation, space flight, naval vessels and the like, working stations, computers, data communication, communication equipment and the like.

Description

technical field [0001] The invention relates to a high-performance silicon-based wave-absorbing material and a preparation method thereof, and belongs to an organic wave-absorbing material that requires an electromagnetic shielding interface. Background technique [0002] With the development of modern science and technology, the impact of electromagnetic radiation on the environment is increasing. At the airport, flights are delayed due to electromagnetic wave interference; in hospitals, mobile phones often interfere with the normal work of various electronic medical instruments. In future high-tech and three-dimensional warfare, weapons and equipment will always face severe challenges of detection and anti-detection. The absorbing material is a key link in the stealth technology, and the research on introducing the absorbing material into the stealth technology has been highly valued by countries all over the world. [0003] At present, the base materials of high-grade a...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/07C08L83/08C09K3/00C08K13/06C08K9/10C08K9/06C08K3/08C08K7/06C08K3/22C08K3/34
Inventor 杨福河陈田安赵仁荔
Owner SHENZHEN DARBOND INTERFACE MATERIALS
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