Electromagnetic wave absorptive specific composite material

A technology for absorbing electromagnetic waves and composite materials, which can be used in other chemical processes, chemical instruments and methods to solve problems such as secondary pollution of electromagnetic waves.

Inactive Publication Date: 2005-10-19
俞一哲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in terms of electromagnetic wave protection, electromagnetic wave reflective materials are mostly used. Although

Method used

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Examples

Experimental program
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Effect test

Example Embodiment

[0005] The electromagnetic wave-absorbing composite material is made of acetylene carbon powder and carbonyl iron powder as functional materials, and is mixed with silicone rubber. The acetylene carbon powder and carbonyl iron powder are fully mixed according to the formula of 6:4-9:1 by weight. Silicone rubber is mixed, and the weight ratio of acetylene carbon powder, carbonyl iron powder and silicon rubber is between 3:7-7:3, and is vulcanized into flakes and special shapes after high temperature vulcanization.

[0006] The electromagnetic wave frequency band is 0.1MHz-30GHz, electromagnetic wave attenuation is 5dB-50dB, and the sheet thickness is 0.2mm-50mm. It is used on the surface or interlayer of human clothing hats, clothes, bras, aprons, underwear, and mobile phones. , Walkie-talkie, microwave equipment, household appliances, to protect the human body and equipment from harm and interference.

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PUM

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Abstract

The specific composite electromagnetic wave absorbing material consists of acetylene carbon powder and carbonyl iron powder in the weight ratio of 1.2-9 as functional material and mixed silicon rubber in weight of 3/7-7/3 that of acetylene carbon powder and carbonyl iron powder, and is prepared through mixing, high temperature sulfurizing and making into sheet or on shape. It is used in shield electromagnetic wave of 0.1 MHz-30 GHz and electromagnetic wave attenuation of 5-50 dB when the sheet has thickness of 0.2-50 mm.

Description

technical field [0001] The invention relates to an emerging material for protecting electromagnetic radiation pollution, which can purify and establish healthy electromagnetic wave time and space, and especially protect human body and electrical equipment from harm and interference. Background technique [0002] At present, in terms of electromagnetic wave protection, electromagnetic wave reflective materials are mostly used. Although this method solves the protective effect on certain objects, it will inevitably cause secondary pollution of electromagnetic waves. Contents of the invention [0003] In order to overcome the secondary pollution caused by the existing materials for shielding electromagnetic waves, the invention provides a composite material for absorbing electromagnetic waves. The material can absorb electromagnetic waves, has no reflection, no secondary pollution, and has a wide absorption frequency band, strong attenuation, and is easy to use. [0004] The...

Claims

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Application Information

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IPC IPC(8): C08K3/04C08L83/00C09K3/00
Inventor 俞一哲
Owner 俞一哲
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