Preparation and Characterization of Electrically and Thermally Conductive Polymeric Nanocomposites

Abstract

The dielectric properties of composites and nanocomposites composed of epoxy resin as base matrix and AlN (Aluminum Nitride) as micro and nanofiller has been studied at variable loading of AlN. To improve the dispersion of the filler within the polymer matrix, AlN was surface modified with silane coupling agent (SCA). The thermal conductivity behavior of epoxy/AlN composites and nanocomposites has been studied at variable percentage of filler and temperatures. Test result indicated an increase of thermal conductivity of the composites at 20 wt% of AlN. Also, silane treated composites exhibited improved electrical conductivity properties wherein the electrical insulation property decreased in terms of di-electric strength and resistivity.