Title: Degradation of swollen NR/EPDM filled with graphene nanoplatelets in different types of service oils for engine mounting

Authors: Khairu Ilwani Karim; Noraiham Mohamad; Jeefferie Bin Abd Razak; Hairul Effendy Ab Maulod; Qumrul Ahsan

Addresses: Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Fakulti Kejuruteraan Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Fakulti Teknologi Kejuruteraan Mekanikal and Pembuatan, Universiti Teknikal Malaysia Melaka, 76100 Durian Tunggal, Melaka, Malaysia ' Department of Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Dhaka, Bangladesh

Abstract: Rubber engine mounts are prone to chemical and environmental degradation due to the high-temperature exposure to various factors during service. Graphene derivative has been known as a promising material with outstanding physical, mechanical, electrical, and thermal properties hence serve as an excellent filler in elastomer composites. This study focuses on the degradation of swollen NR/EPDM blend and NR/EPDM filled with graphene nanoplatelets in different automotive service liquids and later subjected to tensile testing. The blends and nanocomposites were melt compounded using an internal mixer and fabricated by using a hot press. They were then swollen in gear, brake, and engine oils for 6 and 27 days. The change in mass, length and tensile properties are measured to determine the degradation effect. Swollen blends and nanocomposites experienced severe dimension changes and dropped in tensile properties. The results were in good agreement with morphological, structural, thermal, and compositional analyses.

Keywords: natural rubber; ethylene propylene diene monomer; EPDM; graphene nanoplatelets; GNPs; swelling properties; tensile properties.

DOI: 10.1504/IJMPT.2022.122887

International Journal of Materials and Product Technology, 2022 Vol.64 No.3/4, pp.338 - 352

Accepted: 20 Sep 2021
Published online: 16 May 2022 *

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