Fluorine-containing cation exchange membrane for electrolysis

Details Fluorine-containing cation exchange membrane for electrolysis Fluorine-containing cation exchange membrane for electrolysis

C - Chemistry, Metallurgy

25

B

C25B 13/04 (2006.01) B01J 39/18 (2006.01) C08J 5/22 (2006.01) C25B 13/08 (2006.01) H02K 26/00 (2006.01)

Patent

CA 2063353

A fluorine-containing ration exchange membrane for electrolysis, which comprises a first layer of a fluorine-containing polymer having ration exchange groups and reinforced with a porous base material and a second layer of a fluorine-containing polymer having carboxylic acid groups, present on the cathode side of the first layer, wherein at least 1/2 of the thickness of the porous base material protrudes from the first layer towards the anode side, the protrusions of the porous base material are covered with a coating layer of a fluorine-containing polymer having ration exchange groups so that the coating layer is integrated with the first layer, and the anode side surface of the coating layer has a roughness corresponding to the surface contour of the porous base material.

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