Despite being applied as graphene precursor, GO along with other carbon nanostructures have been labeled
as integral part in the nanotechnology development.
GO is a derivation of graphite which undergo a chemical surface modification using strong oxidizing agents such as
KMnO4and H2SO4 (Potts et al. 2011). Yang et al. (2010) reported the purpose of nanocarbon’s surface treatment is
to introduce new functionalized group for better covalent bonding with the polymer matrix.
Covalent bonding helps to improve interfacial interaction between filler and matrix polymer thus determine composite final mechanical performance (Medhekar et al. 2010). Better wettability and homogenous dispersion was observed from surface modification.