Chinese Academy of Sciences

Jinkai Hao

Hongjie Zhang

Zhigang Shao

A protective film sequentially includes a release 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 coated on a polyester film. A low-viscosity organosilicon adhesive, the hydroxyl-terminated polydimethylsiloxane, the curing agent, the additive and the solvent are mixed and costed on the polyester film complex, which is pressed with the release film to obtain a silica gel protective film for fuel cells. 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 peeled off after the coating is finished to obtain a CCM for a fuel cell.

Protective film, batch preparation method therefor and use thereof

A roll-to-roll continuous coater for CCM preparation, and a coiled material connection method are provided. The coater has a coiled material connection mechanism that includes an upper rack () and a lower rack (). A vacuum suction plate I (-) provided with a driving device for achieving displacement and a vacuum suction plate II (-) provided with a solid glue spraying device (-) are respectively disposed on the bottom of the upper rack () and the top of the lower rack (). An optical fiber sensor I (-) and an optical fiber sensor II (-) are respectively disposed in the vacuum suction plate I (-) and the vacuum suction plate II (-). A tension detection device () is disposed between the lower rack () and a driving roller assembly ().

Growing community of inventors

Liaoning, China

Jinkai Hao