Title:
NEW PROTECTIVE FILM, BATCH PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/127252
Kind Code:
A1
Abstract:
Disclosed are a new protective film, a batch preparation method therefor and the use thereof in a fuel cell. The protective film sequentially comprises a release protective film, a low-viscosity silica gel layer, a high-viscosity silica gel layer and a substrate from top to bottom. A high-viscosity organosilicon adhesive, a hydroxyl-terminated polydimethylsiloxane, a curing agent, an additive and a solvent are taken and stirred until uniform, and a polyester thin film is coated with same; a low-viscosity organosilicon adhesive, the hydroxyl-terminated polydimethylsiloxane, the curing agent, the additive and the solvent are taken and stirred until uniform, and the polyester thin film complex is coated with same; same is pressed with the release protective film to obtain a silica gel protective film for a fuel cell. A proton exchange membrane is coated with a catalyst to form a first catalyst layer, the protective film is adhered to the surface of the first catalyst layer, the second side of the proton exchange membrane is coated, and the silica gel protective film is stripped after the coating is finished to obtain a CCM for a fuel cell. The protective film prepared in the present invention has a simple production process and a high production efficiency, and the integrity of the catalyst layer cannot be damaged during stripping.
Inventors:
HAO JINKAI (CN)
ZHANG HONGJIE (CN)
SHAO ZHIGANG (CN)
ZHANG HONGJIE (CN)
SHAO ZHIGANG (CN)
Application Number:
PCT/CN2021/119573
Publication Date:
June 23, 2022
Filing Date:
September 22, 2021
Export Citation:
Assignee:
DALIAN INST CHEM & PHYSICS CAS (CN)
International Classes:
C09J7/25; C09J7/30; C09J11/04; C09J11/06; C09J11/08; C09J183/04
Foreign References:
| CN112592673A | 2021-04-02 | |||
| CN105505245A | 2016-04-20 | |||
| CN110117469A | 2019-08-13 | |||
| CN210458033U | 2020-05-05 | |||
| CN107312471A | 2017-11-03 | |||
| US4902141A | 1990-02-20 |
Attorney, Agent or Firm:
DALIAN EAST PATENT AGENT LTD. (CN)
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