The study of the influence of the nanosized particles on the electrical properties of the polymer composites has became of a real interest in last years for most of the research teams working in the field of dielectrics all over the world. In the present work the effects of three different types of nanofillers – SiO2, Al2O3 and TiO2 – on the resistivity and on the absorption currents in low density polyethylene (LDPE) based nanocomposites are analyzed. The influence of the electric field and of the shape of nanoparticles (spherical or rod-like) on the results is also discussed.

Keywords: Nanocomposite, Polyethylene, Nanofiller, Absorption current, Volume resistivity