Improving the Electrical and Thermal Properties of Epoxy Nanocomposite by Adding (BaTiO3) Nanoparticles

Abstract

When combined with epoxy, the developing reinforcing ingredient barium titanate (BaTiO₃) gives composite materials exceptional mechanical, electrical, and thermal properties as well as EM radiation shielding. The performance is improved when these reinforcing chemicals are present; however, it is unclear how much better. BaTiO₃ nanoparticles with epoxy resin type (Quick mast 105) with various BaTiO₃ concentrations (0, 0.01, 0.02, 0.03, 0.04, 0.05 wt %) is used in this work. Numerous experiments, including those for thermal conductivity, thermal expansion, electrical conductivity, dielectric constant, and dielectric loss, have been carried out. The test results revealed an increase in AC conductivity at all concentrations and a nearly constant relative permittivity (dielectric constant) for epoxy nanocomposites as frequency rises.  The epoxy nanocomposites tan values rise with higher concentrations to account for the dielectric loss. Additionally, there is a 28% decrease in thermal expansion and a notable improvement in thermal conductivity with larger nanoparticle concentrations.