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Patent Searching and Data


Title:
ELECTROMAGNETIC SHIELDING COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/092713
Kind Code:
A1
Abstract:
Disclosed are an electromagnetic shielding composite material and a preparation method therefor. Said electromagnetic shielding composite material comprises a first copper foil layer and a second copper foil layer disposed at an interval, and an amorphous alloy layer formed between the first copper foil layer and the second copper foil layer, wherein the thickness of the first copper foil layer and of the second copper foil layer is between 3 and 6 μm, and the amorphous alloy layer is prepared using a Fe40Ni38Mo4B18 non-crystal strip material doped with a magnetic iron powder material and has a thickness between 30 and 100 μm. Said electromagnetic shielding composite material has relatively good shielding performance at low frequencies and extends the application range of the electromagnetic shielding materials.

Inventors:
CHEN HONGHUI (CN)
Application Number:
PCT/CN2019/116956
Publication Date:
May 20, 2021
Filing Date:
November 11, 2019
Export Citation:
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Assignee:
CHANGDE XINRUI NEW MAT CO LTD (CN)
International Classes:
H05K9/00; B32B15/01
Domestic Patent References:
WO2018081394A12018-05-03
Foreign References:
CN103171184A2013-06-26
CN106937522A2017-07-07
CN101252823A2008-08-27
Attorney, Agent or Firm:
SHENZHEN XINGKEDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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