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http://dx.doi.org/10.7316/KHNES.2022.33.2.176

A Study on the Change of Mechanical Property According to the Aging of Polymer Electrolyte Membrane  

KIM, SEUNGHWAN (Graduate School of Mechanical Engineering, Kumoh National Institute of Technology)
EO, JUNWOO (Graduate School of Mechanical Engineering, Kumoh National Institute of Technology)
SEO, YOUNGJIN (Department of Mechanical Engineering, Kumoh National Institute of Technology)
HWANG, CHULMIN (Natural Energy Lab. Co.,Ltd)
JUNG, YOUNGGUAN (Department of Mechanical Engineering, Kumoh National Institute of Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.33, no.2, 2022 , pp. 176-182 More about this Journal
Abstract
Since the various characteristics of the polymer electrolyte membrane are not clearly identified, it is difficult to predict and design applications for various conditions. In this study, as a previous study on the aging of the polymer electrolyte membrane, a study was conducted on the change of mechanical properties according to the aging of the polymer electrolyte membrane. Through the tensile test of Nafion 117, the mechanical properties change due to aging was confirmed. As a result of the tensile test, it was confirmed that the aged Nafion 117 had reduced tensile strength. Through DSC measurement, aged Nafion confirmed that the glass transition temperature and enthalpy change were low, which is thought to be the effect of molecular motion and transition due to the lapse of time. The effect is thought to cause a difference in the amount of change in enthalpy, resulting in a difference in mechanical properties during tension.
Keywords
Polymer electrolyte membrane; Nafion; Tensile; Crystalline; Amorphous; Aging;
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Times Cited By KSCI : 3  (Citation Analysis)
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