Non-laminated ion-exchange membrane with improved mechanical properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F16%3AN0000067" target="_blank" >RIV/28676092:_____/16:N0000067 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Non-laminated ion-exchange membrane with improved mechanical properties

Original language description

Presence of reinforcing fabric noticeably increases mechanical properties of ion-exchange membranes, but at the expense of hard membrane manufacturing and higher cost. All non-laminated ion-exchange membranes have limited mechanical strength including higher dimension changes during swelling. Heterogeneous ion-exchange membranes are obviously made from LDPE which is easy processable, but this PE cannot be used for non-laminated membrane due to extreme composite brittleness. Replacing LDPE by LLDPE we were able to prepare non-laminated membranes which are more elastic, but their mechanical properties are still poor and also their using is limited. PP has generally much higher mechanical strength, higher temperature resistance and lower creep behavior in comparison to LDPE or LLDPE. Due to immiscibility of PP with PE, their blends are limited only for composites with lower filler content. For increasing PP flexibility the propylene based elastomers (PBE) are very good alternative to PP/PE blends. In this article we compare mechanical and electrochemical properties of non-laminated membranes prepared from LDPE, LLDPE, PP, PBE and blend of PP with PBE. Due to expected higher mechanical properties of PP based composites we also prepared non-laminated membranes with increased ion-exchange resin content. We confirmed that PP based non-laminated membranes have higher tensile strength even for membranes with increased resin content. Also we confirmed that with increasing of PBE content the elongation increases at the expense of decreasing modulus.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JP - Industrial processes and processing

OECD FORD branch

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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

2016

Confidentiality

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.

Article name in the collection

Book of Abstracts PERMEA & MELPRO 2016

ISBN

978-80-904517-6-6

ISSN

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e-ISSN

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Number of pages

7

Pages from-to

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Publisher name

Czech Membrane Platform

Place of publication

Pardubice

Event location

Praha

Event date

May 15, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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