Vibrational Damping Behaviors Of Graphene Nanoplatelets Reinforced NR/EPDM Nanocomposites

Mohamad, Noraiham and Yaakub , Juliana and Ab Maulod, Hairul Effendy and Abd Razak, Jeefferie and Yaakob, Mohd Yuhazri and Lau, Kok Tee and Ahsan, Qumrul and Shueb, Mohammed Iqbal and Othman, R. (2017) Vibrational Damping Behaviors Of Graphene Nanoplatelets Reinforced NR/EPDM Nanocomposites. Journal Of Mechanical Engineering And Sciences (JMES), 11 (4). pp. 3274-3287. ISSN 2289-4659

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Vibrational damping behaviors of graphene nanoplatelets (GNPs) reinforced natural rubber/ethylene-propylene-diene rubber (NR/EPDM) were investigated. The nanocomposites were prepared through melt compounding using a Haake internal mixer. In this study, GNPs reinforced NR/EPDM nanocomposites were characterized for damping properties towards the effect of GNPs loading (1, 3 and 5 wt%) and chitosan-functionalization. The results indicate the addition of GNPs have significantly improved both log decrement and damping ratio values correlated to the enhanced damping property of the nanocomposites. Chitosan-functionalized GNPs seem to slightly hamper the increase of damping properties contributed by incorporation of GNPs in NR/EPDM blends. These findings were further supported by thermal and morphological studies through dynamic mechanical analysis (DMA) and transmission electron microscopy (TEM) analysis. The storage modulus, loss modulus and tan δ showed good agreement with the vibrational damping test. Meanwhile, TEM analysis revealed the existence of intercalated and exfoliated structure of GNPs in NR/EPDM matrix which resulted in improved vibration damping properties of the nanocomposites for the potential used as vibration insulator.

Item Type: Article
Uncontrolled Keywords: Graphene; NR/EPDM; vibration; dynamic mechanical; morphology.
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Manufacturing Engineering
Depositing User: Mohd. Nazir Taib
Date Deposited: 25 Oct 2018 04:48
Last Modified: 14 Jul 2021 16:21
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