The D.C Electrical Properties of (PVC‐Al2O3) Composites

The D.C electrical conductivity of (polyvinylchloride‐alumina) composite has been investigated at different temperature. For that purpose, the PVC samples with Al2O3 additive prepared with different percentages (0, 20, 40, 50 and 55) wt. % and different thickness. The experimental results showed that the D.C electrical conductivity increased with increasing the alumina concentrations and temperature. Also the activation energy change with increasing of additional alumina.