The D. C and A. C electrical properties of polymer filled with metal powder

الملخص EN

In this paper the effect of filler content on D.C and A.C electrical properties of polystyrene filled with copper powders has been investigated.

The D.C conductivity of such composites increases suddenly by several order of magnitude at a critical weight concentration.

The D.C electrical conductivity changed with increasing of temperature.

Also the activation energy change with increasing filler concentration.

The dielectric constant, dielectric loss, A.C electrical conductivity are increasing with increasing the concentration of the filler and frequency of applied electrical field.