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Strength of Materials
Erschienen in: Strength of Materials 4/2019

14.11.2019

Acidic-Thermal Ageing Effect on Compression Stress Relaxation of Silicone Rubber

verfasst von: G. Li, J. M. Gong, J. Z. Tan, D. S. Zhu, W. H. Jia, X. J. Lu

Erschienen in: Strength of Materials | Ausgabe 4/2019

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Abstract

The compression properties of silicone rubbers used as gaskets in PEM fuel cells are studied. The specimens are aged under different test conditions, viz, high temperature, humid air, and acidic solutions, prepared to match real PEM fuel cell operation conditions. The compression and stress relaxation tests are conducted. Temperature, humid air and acidic solution exert a serious effects on the mechanical performance of silicone rubbers. All the three factors can cause an increase in the stress relaxation modulus and permanent compression deformation. The effects of high temperature and an acidic solution are more pronounced. This can accelerate the deterioration of mechanical properties and decrease the sealing efficiency of gaskets, which would influence the durability of PEM fuel cells. It creates the basis for life prediction of silicone rubbers under appropriate accelerated durability test conditions.
Vorheriger Artikel Rebar Corrosion Rate Estimation of Reinforced Concrete Components Exposed to Marine Environment
Nächster Artikel Stress-Strain and form Accuracy of Carbon Steel Components Produced by a Multi-Point Stretch Forming Technique

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Metadaten
Titel
Acidic-Thermal Ageing Effect on Compression Stress Relaxation of Silicone Rubber
verfasst von
G. Li
J. M. Gong
J. Z. Tan
D. S. Zhu
W. H. Jia
X. J. Lu
Publikationsdatum
14.11.2019
Verlag
Springer US
Erschienen in
Strength of Materials / Ausgabe 4/2019
Print ISSN: 0039-2316
Elektronische ISSN: 1573-9325
DOI
https://doi.org/10.1007/s11223-019-00113-5

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