Temperature dependence of electrical properties of epoxy- glass microballoons compocite

الملخص EN

This study is concerned with the temperature dependence of some electrical properties of epoxy-glass microballoons composite containing 0, 15, 35, and 55% by weight glass microballoons.

The temperature was varied from 20 oC to 125 oC at frequencies 100Hz and 10 KHz.

It was found that the calculated dielectric constant showed a strong dependence on temperature above 80 oC .

Two maxima occurred in the dielectric loss as a function of temperature plot.

The low temperature peak around 50 oC was assigned to the (- relaxation process, and the high temperature peak began to appear above 80 oC to the (- relaxation process.