n this work, we report the preparation and characterization of PVDF/reduced graphene oxide (RGO)-ZnOnanocomposite films via synthesis of reduced graphene oxide-ZnO nanocomposite by solution castingmethod. Different weight ratios of RGO-ZnO nanocomposites were produced and compounded with PVDFby solution mixing. The compounding was followed by solution casting and drying to form nanocompositefilms. Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction techniques (XRD), revealed anobvious to -phase transformation compared to pure PVDF which a maximum content of 83% for -phase was calculated by using FTIR techniques. The morphology of the nanocomposites was investigatedusing scanning electron microscope (SEM). SEM micrographs showed a decrease in size of spheruliticcrystal structure of PVDF/RGO-ZnO nanocomposites compared with pure PVDF which has an obviousrelation with -phase enhancement. The thermal behaviors of PVDF/RGO-ZnO nanocomposite films havebeen investigated by employing thermogravimetric analysis (TGA). Since the interface between PVDFand the nanoparticles has an important role in the nucleation of the polymer phase, thermogravimetricanalysis was used in order to identify and quantify the interface region and to correlate it with the -phase content. It is found that an intimate relation exists between the size of the interface region andthe piezoelectric -phase formation that depends on the RGO-ZnO content. The interface value and the-phase content increase with increasing RGO-ZnO. The PVDF nanocomposites showed higher thermalstability than the pure polymer.
