Effects of the γ-rays on Some Electrical Properties of High Density Polyethylene (HDPE) Dissolved in Tetrahydrofuran (THF)

Abstract

This research includes a study of some electrical properties of (HDPE) which is dissolved in Tetrahydrofuran before and after irradiation by (γ-ray) at dose of (4000 rad) with average radiation (181.8181 rad / min) for (22 min) . The study of electrical properties had included measurement of electrical conductivity, capacity of (HDPE), and calculation of molar conductivity and dielectric constant. And it is found that the Electrical Conductivity, Capacitance and dielectric constants is increase with increasing of concentration and also after irradiation but the molar conductivity is decreases with increasing of concentration and increase after irradiation. All measurements are calculated in constant room temperature approximate to (25°c).The cause of the change in values of properties may be resulted from cross linking of polymer chains and then increased in the average viscosity molecular weight for material (HDPE) used in research.