Fabrication and characterisation of graphene oxide-epoxy nanocomposite

Dilini Galpaya; Mingchao Wang; Cheng Yan; Meinan Liu; Nunzio Motta; Eric Waclawik

doi:10.1117/12.2026759

9 August 2013 Fabrication and characterisation of graphene oxide-epoxy nanocomposite

Dilini Galpaya, Mingchao Wang, Cheng Yan, Meinan Liu, Nunzio Motta, Eric Waclawik

Proceedings Volume 8793, Fourth International Conference on Smart Materials and Nanotechnology in Engineering; 87930U (2013) https://doi.org/10.1117/12.2026759
Event: Fourth International Conference on Smart Materials and Nanotechnology in Engineering, 2013, Gold Coast, Australia

Abstract

Adequate amount of graphene oxide (GO) was firstly prepared by oxidation of graphite and GO/epoxy nanocomposites were subsequently prepared by typical solution mixing technique. X-ray diffraction (XRD) pattern, X-ray photoelectron (XPS), Raman and Fourier transform infrared (FTIR) spectroscopy indicated the successful preparation of GO. Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) images of the graphite oxide showed that they consist of a large amount of graphene oxide platelets with a curled morphology containing of a thin wrinkled sheet like structure. AFM image of the exfoliated GO signified that the average thickness of GO sheets is ~1.0 nm which is very similar to GO monolayer. Mechanical properties of as prepared GO/epoxy nanocomposites were investigated. Significant improvements in both Young’s modulus and tensile strength were observed for the nanocomposites at very low level of GO loading. The Young’s modulus of the nanocomposites containing 0.5 wt% GO was 1.72 GPa, which was 35 % higher than that of the pure epoxy resin (1.28 GPa). The effective reinforcement of the GO based epoxy nanocomposites can be attributed to the good dispersion and the strong interfacial interactions between the GO sheets and the epoxy resin matrices.

Citation Download Citation

Dilini Galpaya, Mingchao Wang, Cheng Yan, Meinan Liu, Nunzio Motta, and Eric Waclawik "Fabrication and characterisation of graphene oxide-epoxy nanocomposite", Proc. SPIE 8793, Fourth International Conference on Smart Materials and Nanotechnology in Engineering, 87930U (9 August 2013); https://doi.org/10.1117/12.2026759

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