Preparation and basic characterization of heterogeneous weak acid cation exchange membrane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F17%3AN0000036" target="_blank" >RIV/28676092:_____/17:N0000036 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.researchgate.net/publication/319086985_Preparation_and_basic_characterization_of_heterogeneous_weak_acid_cation_exchange_membrane" target="_blank" >https://www.researchgate.net/publication/319086985_Preparation_and_basic_characterization_of_heterogeneous_weak_acid_cation_exchange_membrane</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation and basic characterization of heterogeneous weak acid cation exchange membrane

Popis výsledku v původním jazyce

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 preparation parameters. All membranes were characterized. Electrochemical (permselectivity, ion exchange capacity, areal and specific resistance) and physical (relative water content, swelling in the different solutions – dimensional changes) properties were measured. All results were compared. 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.

Název v anglickém jazyce

Preparation and basic characterization of heterogeneous weak acid cation exchange membrane

Popis výsledku anglicky

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 preparation parameters. All membranes were characterized. Electrochemical (permselectivity, ion exchange capacity, areal and specific resistance) and physical (relative water content, swelling in the different solutions – dimensional changes) properties were measured. All results were compared. 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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/LO1418" target="_blank" >LO1418: Progresivní rozvoj Membránového inovačního centra</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Název statě ve sborníku

Proceedings of the 44th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-89597-58-1

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

321-330

Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava, Slovenská republika

Místo konání akce

Demänovská dolina, Slovakia

Datum konání akce

22. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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