Monovalent anion selective ion exchange membrane
An ion-exchange membrane and ion-exchange technology, applied in the field of monovalent anion-selective ion-exchange membranes and their preparation, can solve the problems of insignificant ion-exchange membranes
Pending Publication Date: 2022-04-29
TORAY ADVANCED MATERIALS KOREA
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Problems solved by technology
However, the development of ion-exchange membranes that selectively permeate only monovalent anions at high rates is virtually insignificant.
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[0044] Next, the present invention will be described in more detail. However, the present invention can be implemented in various forms without being limited to the embodiments described in this specification, and defined only by claims to be described later.
[0045] In addition, terms used in the present invention are only used to describe specific embodiments, and are not used to limit the present invention. Expressions in the singular form also include expressions in the plural form unless there is a clear meaning otherwise in the context. Unless otherwise stated to the contrary, throughout the specification of the present invention, "comprising" a constituent element means that other constituent elements may be further included, not excluded.
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Abstract
Disclosed are a monovalent anion selective ion exchange membrane and a method for preparing the ion exchange membrane. For the structure of the monovalent anion selective ion exchange membrane, the content of the cation exchange polymer electrolyte in the surface part is relatively high, the content of the anion exchange polymer electrolyte in the central part is relatively high, and the content of the cation exchange polymer electrolyte in the central part is relatively high. The content ratio of the anion exchange polymer electrolyte with respect to the cation exchange polymer electrolyte continuously increases from the surface toward the center in the thickness direction. Due to such a structure, the permeability of the multivalent anion exchange membrane is significantly reduced compared to monovalent anions, and thus the multivalent anion exchange membrane can have high selectivity to the monovalent anions.
Description
technical field [0001] The invention relates to a monovalent anion selective ion exchange membrane and a preparation method thereof. Background technique [0002] Due to concerns about the depletion of fossil fuels such as petroleum and coal, and global warming caused by carbon dioxide generated by the use of fossil fuels, it is currently necessary to develop new energy sources that can replace fossil dyes. In this regard, various new renewable energy sources such as solar heat, biofuels, geothermal energy, and wind power are currently being developed and researched all over the world, but the ratio of such renewable energy sources is still less than 10% of global energy consumption. Also, solar heat and wind power, which are being studied as promising alternative energy sources to fossil fuels, have energy yields that are sensitive to the surrounding climate environment, and thus have drawbacks in terms of securing stable energy yields. Therefore, interest in an environmen...
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IPC IPC(8): C08J5/22B01J41/12B01J43/00B01D69/02B01D69/10B01D67/00C02F1/469
CPCC08J5/2287B01J41/12B01J43/00B01D69/02B01D69/10B01D67/0006B01D67/0002C02F1/469C02F1/4693C08J2323/06C08J2325/18B01D2323/46B01D2325/42H01M8/1027C08J5/2231C08J2325/00C08J2433/26B01D69/1216B01D69/1214B01D2325/18B01D69/107B01D69/106H01M8/1072H01M8/1081H01M8/1086H01M8/1058H01M8/1062H01M8/227Y02E60/50B01J41/09B01J41/13
Inventor 崔荣祐
Owner TORAY ADVANCED MATERIALS KOREA