Enhanced Dielectric Properties of Polyaniline/Silver/Carbon Nanotubes Nanocomposite

Abstract

Current researches had shown that the electrical conductivity of most polymers depend on the method of its preparation and type of fillers. This research therefore aimed at studying the electrical properties of polyaniline carbon nanotubes nanocomposite prepared by hand mixing and decoration methods. The effect of preparation method on electrical properties of polyaniline containing Carbon Nanotubes (CNTs) and silver nanoparticles was studied. The formation of Ag NPs was confirmed by XRD. The AC-conductivity, dielectric permittivity (ε’) and dielectric loss (ε’’) of (CNTs/PANI/Ag) nanocomposites have been measured in the temperature range from 298 to 433 K and frequency range from 10 to 100 kHz. The Ag-CNTs improved the electrical conductivity and dielectric properties of polyaniline. The electrical conductivity of the CNTs/Ag/PANI nanocomposite prepared by decoration method is higher than composites prepared by mixing method.