Improved Interlaminar Shear Behaviour of a New Hybrid Kevlar/Cocos Nucifera Sheath Composites with Graphene Nanoplatelets Modified Epoxy Matrix 


Vol. 20,  No. 8, pp. 1749-1754, Aug.  2019
10.1007/s12221-019-1127-7


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  Abstract

This research investigated the effect of hybridizing Kevlar/cocos nucifera sheath and the effect of adding different wt.% of Graphene nanoplatelets (GNP) on the interlaminar shear behaviour of laminated composites. Initially, different wt.% (0, 0.25, 0.50, and 0.75) of GNP셲 were mixed with epoxy resin through Ultrasonic-sonication. Then the laminated composites were fabricated by hand lay-up method followed by hot pressing. The weight ratio of Kevlar (K) and cocous nucifera sheath (CS) are 100/0 (S1), 75/25(S2), 50/50 (S3), 25/75(S4), and 0/100(S5). Interlaminar shear strengths (ILSS) of different laminates were evaluated using a short beam shear test. The results revealed that hybrid composites S2 (75/25) possess higher ILSS than other laminates in the absence of GNP. Addition of GNP at 0.25 wt.% exhibited higher ILSS in all the laminates (S1 to S5) due to the improved interfacial properties. Further addition of GNP (0.50, and 0.75 wt.%) has declined the ILSS of the laminated composites due to aggregation and overlapping of GNP. XRD analysis reveals that at 0.25 wt.% of GNP, all the hybrid composites exhibited higher crystallinity index. Statistical analysis of the results has been performed using one way- ANOVA (Analysis of variance) and it shows that there is a statistically significant difference between the obtained interlaminar shear strength of the laminated composites.

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  Cite this article

[IEEE Style]

J. Naveen, M. Jawaid, E. Zainudin, M. T. H. Sultan, R. Yahaya, "Improved Interlaminar Shear Behaviour of a New Hybrid Kevlar/Cocos Nucifera Sheath Composites with Graphene Nanoplatelets Modified Epoxy Matrix," Fibers and Polymers, vol. 20, no. 8, pp. 1749-1754, 2019. DOI: 10.1007/s12221-019-1127-7.

[ACM Style]

J. Naveen, M. Jawaid, E.S. Zainudin, Mohamed T. H. Sultan, and R. Yahaya. 2019. Improved Interlaminar Shear Behaviour of a New Hybrid Kevlar/Cocos Nucifera Sheath Composites with Graphene Nanoplatelets Modified Epoxy Matrix. Fibers and Polymers, 20, 8, (2019), 1749-1754. DOI: 10.1007/s12221-019-1127-7.

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