电源技术Issue(4)：759-762,4.
模拟PEMFC环境下弹性体垫片材料老化研究
Study on aging of an elastomeric gasket material in simulated PEMFC environments
摘要
Abstract
Chemical and mechanical durability and stability of gasket materials are critical to both sealing and electrochemical performance of proton exchange membrane (PEM) fuel cells. The aging degradation of the methyl vinyl silicone rubber material potential y used as the gasket material of PEM fuel cells was investigated experimental y in two simulated fuel cellenvironments. The optical microscopy and ATR-FTIR were employed to study the aging degradation of surface morphology and chemical structure of the sample in the simulated PEMFC environments. The test results reveal that the gasket material degrades by weight loss for the samples soaked to the simulated PEM fuel cellenvironments, and the weight loss increases with the aging time. The optical microscopy shows that the surface conditions of the samples changes from initial y smooth to rough, crack appearance and final y crack propagation. The ATR-FTIR results indicate that the surface chemistry remarkably changes.关键词
PEMFC/弹性体垫片/ATR-FTIR/老化Key words
PEMFC/elastomeric gasket/ATR-FTIR/aging分类
信息技术与安全科学引用本文复制引用
张旭,谈金祝,周靖,范留飞,李果..模拟PEMFC环境下弹性体垫片材料老化研究[J].电源技术,2015,(4):759-762,4.基金项目
江苏省“六大人才高峰”项目资助；国家自然科学基金资助(51175241) （51175241）
