Title:
PREPARATION METHOD FOR ELECTRICALLY AND THERMALLY STIMULATED SHAPE MEMORY FPC ELECTROMAGNETIC SHIELDING FILM
Document Type and Number:
WIPO Patent Application WO/2023/217065
Kind Code:
A1
Abstract:
A preparation method for an electrically and thermally stimulated shape memory FPC electromagnetic shielding film, belonging to the technical field of polymer science. The method comprises: first preparing an EVA fiber film by means of electrostatic spinning and ultraviolet curing; after curing, dipping same into a dopamine solution; then placing into a Tollens' reagent the fiber film on the surface of which a polydopamine thin film is deposited; then adding a glucose solution for reaction; and after the reaction is finished, drying same to obtain the electrically and thermally stimulated shape memory FPC electromagnetic shielding film. The prepared FPC electromagnetic shielding film has ultrahigh conductivity, ultra-high EMI SE and an electrically/thermally stimulated shape memory effect. In aspect of comprehensive performance, the FPC electromagnetic shielding film under electrical stimulation can freely deform according to the dimension of an FPC and closely fit electronic components in a high-density layout, and meanwhile, still hold stable high EMI SE; and when a waste mobile phone is recycled, a shape memory polymer based conductive composite fiber film is driven by thermal stimulation to recover the shape and EMI SE, thus exhibiting relatively high recycling performance.
Inventors:
LI WENBING (CN)
WEI WANTING (CN)
LIU JUNHAO (CN)
CAO FENG (CN)
QIAN KUN (CN)
WEI WANTING (CN)
LIU JUNHAO (CN)
CAO FENG (CN)
QIAN KUN (CN)
Application Number:
PCT/CN2023/092678
Publication Date:
November 16, 2023
Filing Date:
May 08, 2023
Export Citation:
Assignee:
UNIV JIANGNAN (CN)
International Classes:
D06M15/61; D01D5/00; D04H1/4282; D04H1/728; D06M11/83; H05K9/00; D06M101/20
Foreign References:
| CN114855460A | 2022-08-05 | |||
| CN113265908A | 2021-08-17 | |||
| CN108193501A | 2018-06-22 | |||
| CN112376266A | 2021-02-19 | |||
| CN108570163A | 2018-09-25 | |||
| US20190177570A1 | 2019-06-13 |
Attorney, Agent or Firm:
HARBIN SHINEIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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