Tailoring the physical properties of nanocomposite films by the insertion of graphene and other nanoparticles

New polymeric nanocomposite films containing graphene and Ag, Au or ZnO nanoparticles were synthesized,and their morphological, thermal, surface and dielectric properties were studied. Graphene wasobtained by the sonication method, which allows to obtain ‘‘real’’ graphene, without any chemicalmanipulation of graphite. This method preserves graphene lattice symmetry, which is responsible forits exceptional properties. The interaction between graphene and the other nanoparticles (NPs) confersto these polymeric films interesting characteristics, thus making them suitable for different applications.For example, the wetting property can be tuned by the insertion of nanofillers. Furthermore, the presenceof these latter increases the dielectric strength of the polymer films.