Study of the electrical and thermal Properties of Polyester-foliated Bentonite Composite

In this research , effect of addition the filler material(bentonite) on electrical and thermal conductivity of matrix material(polyester resin) has been studied , the powder was prepared with a granular size less than (75μm) and was calcinated to three degrees of heat (200,400,600 οC) and was added to the matrix material after it was formed , Polyvinyl alcohol (PVA) was used as a binder material to study the properties of this material and study the effect of the percentage of filler, temperature and frequency in the value of electrical insulation , the results show increased the electrical conductivity of the composite by increasing the percentage of the filler and frequency of the electric field , also thermal conductivity was increased the temperature and decrease with increasing of weight fraction for the filler .