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Two different morphologies of ZnO(lotus-shaped, rod-shaped) and ZnO/PVDF composite materials were prepared. The morphologies of ZnO and composite materials were characterized by scanning electron microscopy(SEM) and transmission electron microscopy(TEM). Fourier transform infrared spectroscopy(FT-IR), thermal gravimetry(TG), and X-ray diffraction(XRD) were also used to characterize the chemical structures and phase composites of ZnO and ZnO/PVDF composite materials. Breakdown voltage, dielectric constant and dielectric loss of ZnO/PVDF composite materials were also tested. Microstructure analysis showed that ZnO nanoparticles dispersed uniformly in the matrix. And the dielectric constant expresses a significantly improvement while the dielectric loss and breakdown voltage expresses no significant change. Moreover, dielectric constant keeps an improvement tendency with increasing content of ZnO.
The morphologies of ZnO and composite materials were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Fourier transform infrared Spectroscopy (FT-IR), thermal gravimetry (TG), and X-ray diffraction (XRD) also used to characterize the chemical structures and phase composites of ZnO and ZnO / PVDF composite materials. Breakdown voltage, dielectric constant and dielectric loss of Microstructure analysis showed that ZnO constant dispersion anomalies in the matrix. And the dielectric constant expresses a significant improvement while the dielectric loss and breakdown voltage expresses no significant change. increasing content of ZnO.