Fiber Reinforced Sulfonated SBS Proton Exchange Membranes

A novel fiber reinforced proton exchange membrane (PEM) based on sulfonated styrene-butadiene-styrene triblock copolymers (SBS) were fabricated and the potential application in Fuel Cell is evaluated. SBS was sulfonated by acetyl sulphate. Glass fibers that were modified by coupling agents were mixe...

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Bibliographic Details
Published in:Key engineering materials 2003-01, Vol.249, p.385-390
Main Authors: Pan, M., Shen, C.H., Yuan, Run Zhang, Yang, Xin Sheng
Format: Article
Language:English
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Summary:A novel fiber reinforced proton exchange membrane (PEM) based on sulfonated styrene-butadiene-styrene triblock copolymers (SBS) were fabricated and the potential application in Fuel Cell is evaluated. SBS was sulfonated by acetyl sulphate. Glass fibers that were modified by coupling agents were mixed with the sulfonated SBS to form a composite membrane. The properties of the composite membrane such as equivalent weight, strength, proton conductivity, water content and swellability were studied. Results show that the fibers dramatically increase the strength of the composite membrane up to 30 Mpa compared to the 10 Mpa of sulfonated SBS membrane. Moreover, the composite membrane exhibits an excellent size stability during swelling. With slightly decrease in proton conductivity, the composite membrane shows a promising future in the application in Fuel Cell.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.249.385