The Effect of Water on the Stress Relaxation and Life Estimation of Seals in Polymer Electrolyte Membrane Fuel Cells

Autor:	John W. Van Zee, Tong Cui, Yuh Chao, Chih-Wei Lin
Rok vydání:	2010
Předmět:	chemistry.chemical_classification Membrane Materials science chemistry Stress relaxation Fuel cells Polymer Electrolyte Composite material
Zdroj:	ECS Transactions. 33:1007-1015
ISSN:	1938-6737 1938-5862
DOI:	10.1149/1.3484594
Popis:	Polymer Electrolyte Membrane fuel cell (PEMFC) is a promising power source for automobiles in the near future. Polymers are usually used as the sealing or gasket materials in PEM fuel cells and they are viscoelastic materials. The stress relaxation behavior of a polymer, liquid silicone rubber, is studied in different media The result shows that the relaxation mechanism remains the same with the specimen in ambient air from 25°C to 120°C, however, it is changed by the introduction of water, and the changed mechanism cause the failure of Arrhenius equation for life estimation, but time temperature superposition still works well.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7456671967a7dc6cab78a6cb4345f440 https://doi.org/10.1149/1.3484594 Zobrazit plný text záznamu