فهرست نشریات علمی دسترسی آزاد ایران

The present study included the investigate the influence of incorporating (silver nitrate AgNO3) and (barium titanate BaTiO3) into (polyvinyl alcohol PVA)/(polyethylene oxide PEO) matrix. These materials was fabricated using casting method. Enhance the microstructure and electrical characteristics of polymer matrix by adding nanoparticles is an effective technique for developing advanced functional materials. The X-ray diffraction (XRD) measured confirmed the semicrystalline structure of polymer. The strongest peak appeared at 2θ = 31.57°. Other strong diffraction peak were observed at 2θ = 19.58° and 19.5°. The crystallinity increased after adding the nanoparticles at 2θ = 22.1°, 23.59°, and others. Field-emission scanning electron microscope (FESEM) the images showed that adding nanoparticles improved the surface structure. Energy-dispersive X-ray spectroscopy (EDS) results showed that the pure PVA/PEO blend mainly contained carbon and oxygen, after incorporating nanoparticles, additional elements such as Ti, Ag, and Ba. Electrical measurements showed that the dielectric constant and dielectric loss were high at low frequencies. It was also observed that adding of nanoparticles increased the polarizability and electrical conductivity of the samples.