WET-HEAT EXCHANGEABLE POROUS SHEET

摘要

PROBLEM TO BE SOLVED: To obtain an improved wet-heat exchangeable porous sheet effectively useful as a member for a humidification device of a solid polymer type fuel cell.

SOLUTION: The wet-heat exchangeable porous sheet is constituted of a cellulosic fiber and a polyphenylene sulfide-based fiber in a porous sheet state. The sheet is a monolayer sheet obtained by mixing the cellulosic fiber with the polyphenylene sulfide-based fiber or a double-three layer laminate obtained by combining nonwoven fabric-like sheets and/or woven fabric-like sheets.

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