ION-EXCHANGE MEMBRANE, PRODUCTION METHOD OF ION-EXCHANGE MEMBRANE, AND ELECTROLYTIC TANK

To provide an ion-exchange membrane, a production method of the ion-exchange membrane, and an electrolytic tank, which can reduce an electrolytic voltage in electrolysis and can further display a stable electrolytic performance with little influence on the electrolytic performance due to a contamina...

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Bibliographische Detailangaben
Hauptverfasser:	OKAMOTO KOJI, KOTAKI YUTA, KAIBARA SHINICHI, IGARASHI YUTA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	To provide an ion-exchange membrane, a production method of the ion-exchange membrane, and an electrolytic tank, which can reduce an electrolytic voltage in electrolysis and can further display a stable electrolytic performance with little influence on the electrolytic performance due to a contaminant in an electrolyte.SOLUTION: An ion-exchange membrane comprises: a membrane body including a fluorine-based polymer having an ion-exchange group; and a coating layer arranged on at least one surface of the membrane body. The coating layer includes inorganic particles and a binder. The mass ratio of the binder is 0.3 or more and 0.9 or less to the total mass of the inorganic particles and the binder in the coating layer. A coverage factor of the membrane body by the coating layer is 50% or more.SELECTED DRAWING: None 【課題】電気分解に供した際に電解電圧を低減できることに加え、電解液中の不純物による電解性能への影響が少なく、安定した電解性能を発揮する、イオン交換膜、イオン交換膜の製造方法及び電解槽を提供する。【解決手段】イオン交換基を有する含フッ素系重合体を含む膜本体と、前記膜本体の少なくとも一方の面上に配された被覆層と、を有するイオン交換膜であって、前記被覆層が、無機物粒子とバインダーとを含み、前記被覆層における前記無機物粒子及びバインダーの総質量に対し、前記バインダーの質量比が０．３以上０．９以下であり、前記被覆層による前記膜本体の被覆率が５０％以上である、イオン交換膜。【選択図】なし