Characterization of membranes after exposure to high temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F19%3AN0000107" target="_blank" >RIV/28676092:_____/19:N0000107 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.czemp.cz/cs/workshop-students-presentation-fulltexts/wsp-2019-fulltexty" target="_blank" >http://www.czemp.cz/cs/workshop-students-presentation-fulltexts/wsp-2019-fulltexty</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of membranes after exposure to high temperature

Popis výsledku v původním jazyce

The knowledge of thermal resistance of ion exchange membranes (IEMs) is important for estimation their lifetime, especially for high temperature electrodialysis. This paper focused on characterization of IEMs basic properties after medium-term exposure in demineralized water at 80 °C. Area resistance, specific resistance, permselectivity, and tensile properties of four types of heterogeneous IEMs were evaluated. These membranes differed in the material used for their production – polymer binder, ion exchange resin and reinforcing fabric. As polymer binders LDPE, LLDPE or PPR were used. Chosen ion exchange resins used for IEMs preparation were Amberjet 4200 Cl, Purolite A420 S, Marathon A, Dowex HCR-S/S, and Purolite C 120 E. Changes in IEMs properties were closely related to the structural changes affected by enhanced swelling in hot water. Developmental IEMs showed more stable properties in time under the conditions of thermal aging, thus they should be more suitable for high temperature electrodialysis than the commercially available membranes which suffered the most from the swelling induced changes.

Název v anglickém jazyce

Characterization of membranes after exposure to high temperature

Popis výsledku anglicky

The knowledge of thermal resistance of ion exchange membranes (IEMs) is important for estimation their lifetime, especially for high temperature electrodialysis. This paper focused on characterization of IEMs basic properties after medium-term exposure in demineralized water at 80 °C. Area resistance, specific resistance, permselectivity, and tensile properties of four types of heterogeneous IEMs were evaluated. These membranes differed in the material used for their production – polymer binder, ion exchange resin and reinforcing fabric. As polymer binders LDPE, LLDPE or PPR were used. Chosen ion exchange resins used for IEMs preparation were Amberjet 4200 Cl, Purolite A420 S, Marathon A, Dowex HCR-S/S, and Purolite C 120 E. Changes in IEMs properties were closely related to the structural changes affected by enhanced swelling in hot water. Developmental IEMs showed more stable properties in time under the conditions of thermal aging, thus they should be more suitable for high temperature electrodialysis than the commercially available membranes which suffered the most from the swelling induced changes.

Druh

D - Stať ve sborníku

CEP obor

—

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

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Workshop of Students´ Presentations 2019

ISBN

978-80-906831-9-8

ISSN

—

e-ISSN

—

Počet stran výsledku

1

Strana od-do

28

Název nakladatele

Czech Membrane Platform

Místo vydání

Česká Lípa

Místo konání akce

Stráž pod Ralskem

Datum konání akce

16. 10. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—