/spl Oscr/n dielectric properties of glass-bead filled polymer composite systems

Analysis of the data obtained have shown that the master-curve procedure could not be satisfactorily applied for both considered systems of polymer glassbead mixtures. We, therefore, could not conclude much about the temperature dependences and activation energies of the processes involved. On the other hand, the effect of glass-bead size and its electrical properties were significant. The samples with large glass-bead had two RPS whose dielectric strengths increased with the concentration of the glass-beads. The behavior of losses has also indicated the influence of the high conductivity of the large glass-beads.