Assessment of mechanical properties of fluoroelastomer and EPDM in a simulated PEM fuel cell environment by microindentation test

Tan, Jinzhu; Chao, Y. J.; Zee, J. W. Van; Li, Xiaodong; Wang, Xinnan; Yang, Min

doi:10.1016/j.msea.2008.05.052

Cited by 50 publications

(22 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tan et al1, 14 studied the degradation of silicone rubber in a simulated PEM fuel cell environment. Chemical and mechanical degradation of the elastomeric materials was also reported in other articles 15–20…”

Section: Introductionsupporting

confidence: 60%

Comparison of accelerated aging of silicone rubber gasket material with aging in a fuel cell environment

Pehlivan-Davis

Clarke

Armour

2012

J of Applied Polymer Sci

View full text Add to dashboard Cite

A polymer electrolyte membrane (PEM) fuel cell stack requires gaskets in each cell to keep the reactant gases within their respective regions. Both sealing and electrochemical performance of the fuel cell depend on the long-term stability of the gasket materials. In this paper, the change in properties and structure of a silicone rubber gasket brought about by use in a fuel cell was studied and compared to the changes in the same silicone rubber gasket material brought about by accelerated aging. The accelerated aging conditions were chosen to relate to the PEM fuel cell environment, but with more extreme conditions of elevated temperature (140 C) and greater acidity. The dilute sulfuric acid accelerated aging solutions used had pH values of 1, 2, and 4. In an additional test, Nafion V R membrane suspended in water was used for accelerated aging, to more closely correspond to a PEM fuel cell environment. The analysis showed that acid hydrolysis was the most likely mechanism of degradation and that similar degradation occurred under both real fuel cell and accelerated aging conditions. It was concluded that the accelerated aging test is a good one for rapidly screening materials for resistance to the acidic environment of the fuel cell.

show abstract

Section: Introductionsupporting

confidence: 60%

Comparison of accelerated aging of silicone rubber gasket material with aging in a fuel cell environment

Pehlivan-Davis

Clarke

Armour

2012

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Their investigation revealed that silicone rubber based gasket compound undergo severe degradation in the simulated fuel cell environment as a result of which elements such as silicon, calcium and magnesium are leached out from the gasket which adversely affect the electrochemical process in a fuel cell system [22e24]. They have also reported the mechanical property degradation of EPDM and FKM in a simulated acid solution which is very close to the actual PEM fuel cell environment using micro-indentation and dynamic mechanical analysis [9,10,25]. Mitra i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 4 0 ( 2 0 1 5 ) 1 0 6 2 7 e1 0 6 3 5 degradation via decrosslinking through hydrolysis of the crosslinks in addition to the attack by aqueous acid on the C] C of ethylidene norbonene (ENB) present in the EPDM [26,27].…”

Section: Introductionmentioning

confidence: 92%

Effects of curing systems on the mechanical and chemical ageing resistance properties of gasket compounds based on ethylene-propylene-diene-termonomer rubber in a simulated fuel cell environment

Nah

Kim

Shibulal

et al. 2015

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

“…The depth of indentation was measured using a NT3300 optical profilometer. The microhardness (H) was calculated by the equation [31]:…”

Section: Micro-hardness Measurementmentioning

confidence: 99%

Wear and Friction of Carbon Nanofiber-Reinforced HDPE Composites

Xu¹,

Akchurin

Tian³

et al. 2012

Journal of Tribology

View full text Add to dashboard Cite

New applications of carbon-based materials have been continuously developed in recent years. Carbon nanofibers (CNFs) with silane coatings were added into high density polyethylene (HDPE) to improve the tribological properties of the nanocomposite material. The nanocomposites were fabricated with various weight percentages of carbon nanofibers (0.5 wt.%, 1 wt.% and 3 wt.%) that were treated with different silane coating thicknesses (2.8 nm and 46 nm) through melt-mixing and compressive processing. The wear and friction tests were performed on a pin-on-disc tribometer under phosphate buffered saline lubricated condition. Compared with the neat HDPE, the friction coefficients of the nanocomposites were reduced in all samples, yet only a couple of nanocomposite samples showed lower wear rates. Micro-hardness measurements of the nanocomposites were carried out and CNFs were found to be capable of increasing the material's microhardness. The effects of concentration and silane coating thickness of CNFs on the tribological properties of the resulting nanocomposites were analyzed and the wear mechanisms of the HDPE/CNF nanocomposites were discussed.

show abstract

Assessment of mechanical properties of fluoroelastomer and EPDM in a simulated PEM fuel cell environment by microindentation test

Cited by 50 publications

References 33 publications

Comparison of accelerated aging of silicone rubber gasket material with aging in a fuel cell environment

Comparison of accelerated aging of silicone rubber gasket material with aging in a fuel cell environment

Effects of curing systems on the mechanical and chemical ageing resistance properties of gasket compounds based on ethylene-propylene-diene-termonomer rubber in a simulated fuel cell environment

Wear and Friction of Carbon Nanofiber-Reinforced HDPE Composites

Contact Info

Product

Resources

About