Study the Electrical and Structural Properties of (PMMA-TiO2) nanocomposites

Abstract

In this work,we study the effect of nanoTiO₂ particles on electrical properties of polymer PMMA. The samples of (PMMA-TiO₂) nanocomposites were prepared by using casting method.The weight percentages of nano TiO₂ are (0,3,5 and 7) wt.%. The experimental results show that  the D.C electrical conductivity for the(PMMA-TiO₂)  nanocomposite  increase with the increasing temperature , the activation energy for D.C electrical conductivity for (PMMA-TiO₂)  ) nanocomposite decrease with the increasing of concentrations of the(TiO₂)nanoparticles,the dielectric constant, dielectric loss, and the A.C electrical conductivity for (PMMA-TiO₂) nanocomposite are increasing with the increasing of concentrations of the ( TiO₂)nanoparticle, the dielectric constant and the dielectric loss of the (PMMA-TiO₂) nanocomposite is decreasing with the increase of frequency of the applied electric field, but the A.C electrical conductivity increasing with the frequency

Keywords : Electrical Properties , Polymethyl methacrylate, TiO₂ nanoparticles.