Title:
ELECTROMAGNETIC SHIELDING COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/092711
Kind Code:
A1
Abstract:
Disclosed is an electromagnetic shielding composite material, comprising a first metal foil layer and a second metal foil layer disposed at an interval, and an amorphous alloy layer arranged between the first metal foil layer and the second metal foil layer, wherein the first metal foil layer and the second metal foil layer are silver-wrapped copper layers having a thickness between 1 and 5 μm, and the amorphous alloy layer is an iron-based FeSiB non-crystal strip material layer having a thickness between 50 and 100 μm. The provided electromagnetic shielding composite material has relatively good shielding performance at low frequencies and extends the application range of the electromagnetic shielding materials. Also provided is a preparation method for the electromagnetic shielding composite material.
Inventors:
CHEN HONGHUI (CN)
Application Number:
PCT/CN2019/116953
Publication Date:
May 20, 2021
Filing Date:
November 11, 2019
Export Citation:
Assignee:
CHANGDE XINRUI NEW MAT CO LTD (CN)
International Classes:
H05K9/00; C23C14/00; C23C14/48; C23C28/02
Foreign References:
| CN105714293A | 2016-06-29 | |||
| CN102286254A | 2011-12-21 | |||
| CN101441915A | 2009-05-27 | |||
| CN207105789U | 2018-03-16 | |||
| US4474676A | 1984-10-02 |
Attorney, Agent or Firm:
SHENZHEN XINGKEDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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