Wave-absorbing patch and preparation method

A wave-absorbing patch and wave-absorbing agent technology, which is applied in the field of wave-absorbing materials, can solve the problems of easy agglomeration and reduced wave-absorbing performance, and achieve the effect of improving absorption effect, uniform performance, and reducing iron-silicon-aluminum agglomeration.

Inactive Publication Date: 2018-05-15
EVERYTHING INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wave-absorbing patches on the market now use sendust as the absorbent, and the sendust powder is prone to agglomeration under the action of the self-generated magnetic field, which will reduce the absorbing performance

Method used

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  • Wave-absorbing patch and preparation method

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Embodiment Construction

[0017] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] The preferred embodiments of the present invention will be further described in detail below.

[0019] The present invention proposes a wave-absorbing patch. According to the component ratio, its formula composition includes: 60-90 parts of wave-absorbing agent, 10-40 parts of binder, 1-5 parts of surfactant, and 1-5 parts of leveling agent 1-5 parts, anti-settling agent.

[0020] Wherein, the formula composition of the wave absorbing agent includes 80-95 parts of sendust, 5-15 parts of aluminum nitrate, and 2-10 parts of ammonium monohydrogen phosphate. For example, as an embodiment, the formula composition of the wave absorbing agent includes 80 parts of sendust, 15 parts of aluminum nitrate, and 10 parts of ammonium monohydrogen phosphate; as another embodiment, the formula composition of the wave absorber ...

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Abstract

The invention discloses a wave-absorbing patch and a preparation method. The formula of the wave-absorbing patch, counted by component ratio, is prepared from the following components: 60 to 90 partsof wave-absorbing agent, 10 to 40 parts of adhesive, 1 to 5 parts of surfactant, 1 to 5 parts of anti-settling agent and 1 to 5 parts of leveling agent. Compared with a traditional wave-absorbing patch, the wave-absorbing patch disclosed by the invention has the advantages that Fe-Si-Al is coated with aluminum phosphate, so that the agglomeration of the Fe-Si-Al can be reduced; by adjusting electromagnetic parameters of the wave-absorbing patch are adjusted, the absorption effect is improved. Compared with a melting method, the preparation technology adopts a solvent method and thereby the dispersity of the wave absorbing agent is better and the properties of the wave-absorbing patch are more uniform and stable.

Description

technical field [0001] The invention relates to the technical field of wave-absorbing materials, in particular to a wave-absorbing patch and a preparation method. Background technique [0002] With the development of electrical and electronic technology, household electrical appliances are increasingly popular and electronic, radio and television, post and telecommunications and computer networks are increasingly developed, and the electromagnetic environment is becoming increasingly complex and deteriorating, making the electromagnetic compatibility (EMC, electromagnetic interference, EMI and The problem of electromagnetic anti-EMS has also been paid more and more attention by governments and production enterprises of various countries. In order to solve this problem, wave-absorbing materials emerged as the times require, and play an important role in the field of electronic products. The wave-absorbing patches on the market now use sendust as the absorbent, and the sendus...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/20C09J7/29C09D121/00C09D175/04C09D183/04C09D7/62H05K9/00
CPCC08K3/34C08K9/10C08K2003/327C09D121/00C09D175/04C09D183/04C09J2301/124C09J2421/006C09J2475/006C09J2483/006H05K9/0081H05K9/0088
Inventor 陈小霞杜耘辰
Owner EVERYTHING INDAL
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