Preparation and basic characterization of heterogeneous weak acid cation exchange membrane

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F17%3AN0000071" target="_blank" >RIV/28676092:_____/17:N0000071 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s11696-017-0260-2" target="_blank" >http://dx.doi.org/10.1007/s11696-017-0260-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11696-017-0260-2" target="_blank" >10.1007/s11696-017-0260-2</a>

Result language

angličtina

Original language name

Preparation and basic characterization of heterogeneous weak acid cation exchange membrane

Original language description

The goal of this article is focused on the preparation and the basic characterization of heterogeneous weak acid cation exchange membranes. The six weak cation exchange resins were chosen for the preparation of the membranes. The strong acid cation exchange membrane was prepared for the comparison of properties and preparation parameters. Heterogeneous membranes were prepared in the several steps. The last operations were the extrusion and hydraulic hot-pressing. The torque and pressure in the extrusion head were observed while the extrusion of heterogeneous membranes. According to the type of the ion exchange resin, parameters varied greatly. The strong acid cation exchange membrane and weak acid cation exchange membranes with carboxylic groups had the lowest values of the torque and pressure while the homogenization and extrusion. All membranes were characterized. Electrochemical (permselectivity, ion exchange capacity, resistance), physical (relative water content, swelling in the different solutions) and mechanical properties were measured. Properties varied distinctly according to the type of the ion exchange resins. Swelling dimensional changes of ion exchange membranes in sodium hydroxide and water were bigger than changes in hydrochloric acid. Ion exchange capacity of membranes related with ion exchange capacity of used ion exchange resins. Weak acid cation exchange membranes with carboxylic functional groups compared to the strong membrane had the best specific and areal resistance.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/LO1418" target="_blank" >LO1418: Progressive development of the Membrane Innovation Centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Papers

ISSN

0366-6352

e-ISSN

—

Volume of the periodical

72

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

10

Pages from-to

89-98

UT code for WoS article

000419790000009

EID of the result in the Scopus database

2-s2.0-85040338943