Study of the effect of radiation and frequency on the electrical properties and ultrasonic properties of polyethylene

M. S. Gaafar, A. A. El-Wakil a

Abstract

The authors presented this manuscript to study the effect of g-radiation and frequency on dissipation factor, conductivity, dielectric constant, density, longitudinal ultrasonic velocity, and longitudinal modulus of polyethylene that is frequently used in many industrial polymeric applications, using g-radiation doses from 0 to 30 Gy. The frequency range is from 2*10-6 to 10 * 10-6 Hz. It was observed that the conductivity of polyethylene increase with increasing frequency from 4 *10-6 to 10*10-6 Hz also it is slightly increased with increasing radiation dose from 10 Gy up to 30 Gy. The longitudinal ultrasonic velocity decreases with radiation dose from 10 Gy to 30 Gy.