Vibrational Damping Behaviors Of Graphene Nanoplatelets Reinforced NR/EPDM Nanocomposites
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 cha...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Universiti Malaysia Pahang
2017
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/21192/2/Published%20article%20NMohamad%20et%20al.pdf http://eprints.utem.edu.my/id/eprint/21192/ http://jmes.ump.edu.my/images/Volume%2011%20Issue%204%20December%202017/28_mohamad%20et%20al.pdf |
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| Summary: | 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. |
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