Dielectric behaviour of ethylene vinyl acetate/cenosphere composites

Abstract

Ethylene vinyl acetate (EVA)/cenosphere (CS) composites were processed through solution casting and compression molding method with varying cenosphere loading up to 20 phr. The structural and morphological studies were characterized by XRD and FESEM. The thermal stability of the composites was evaluated by thermogravimetric analysis (TGA). The dielectric behavior of the composites was evaluated with a frequency range of 1000 Hz to 1 MHz at room temperature. The experimental results of dielectric permittivity, dielectric losses, and conductivity of the composites were evaluated with varying frequency. The dielectric permittivity increases with an increase in cenosphere loading and decreases with an increase in frequency. The impedance behavior of the composites was also evaluated. The thermal stability of the composites was evaluated by thermogravimetric analysis (TGA).