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Characterization of a Low-Friction EPDM for Dynamic Sealings Applications: Tensile, Wear Behavior and Hot Water Resistance

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Abstract:

This research examines the friction and wear characteristics, as well as the mechanical properties, of EPDM (ethylene propylene diene monomer) rubber filled with oleamide. The friction measurements are done in contact with PA66GF30. The goal is to determine the suitability of this material combination for usage in dynamic sealing applications on the cathodic side of PEMFC (Proton Exchange Membrane Fuel Cell) systems. The EPDM rubber, specifically designed for reduced friction, underwent aging procedures such as heat aging and water-glycol soaking to assess its long-term performance. The pin-on-disk tests demonstrated a rapid initial rise in the coefficient of friction (CoF) and notable wear, but the hot water extraction experiments showed inadequate chemical stability with substantial ion leaching. The tensile tests demonstrated a significant decrease in mechanical characteristics during the aging process. The findings indicate that the EPDM containing oleamide has promise for dynamic sealing. However, its performance is greatly affected by aging and exposure to the environment, which highlights the need for more material optimization.

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Periodical:

Key Engineering Materials (Volume 1031)

Pages:

45-53

DOI:

https://doi.org/10.4028/p-E39bJG

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Online since:

November 2025

Authors:

Daniel Foltuț*, Georgiana Iulia Șoșoi, Dragoș Toader Pascal, Ion Dragoş Uţu, Viorel Aurel Șerban

Keywords:

EPDM, Friction, Fuel-Cell, Rubber, Wear

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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