Influence of Graphene Oxide on Mechanical and Hydrophilic Properties of Epoxy/Banana Fiber Composites
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Epoxy/banana fiber (EBF) composites with fiber length of 5–7 mm and fiber content of 5.0 wt.% were prepared by hand layup technique. Graphene oxide (GO) was dispersed at different concentrations (1.0 wt.%, 2.5 wt.%, and 5.0 wt.%) in the EBF matrix using cetyltrimethylammonium bromide (CTAB), and its effect on the mechanical and hydrophilic properties of the EBF composites was assessed. The highest tensile strength of 11 MPa, flexural strength of 55 MPa, impact strength of 92 J/m and contact angle of 57° were recorded for the 5.0 wt.% GO-reinforced EBF composite, compared with 5 MPa, 27 MPa, 38 J/m, and 64° for the EBF composite and 4 MPa, 23 MPa, 31 J/m, and 65° for neat epoxy, respectively. It was observed that GO was dispersed uniformly in the EBF matrix by the CTAB treatment, improving the mechanical and hydrophilic properties of the EBF composites.
P.S.B. is grateful to TEQIP-III MHRD, New Delhi for providing financial assistance to carry out this research work. S.M. is grateful to UGC New Delhi for awarding a BSR Faculty Fellowship.
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