Dielectric properties of natural rubber/chitosan blends: Effects of blend ratio and compatibilization

The electrical properties of blends from natural rubber and chitosan have been studied in the frequency range of 102–106 Hz. Blending of chitosan with a non-polar polymer such as natural rubber is expected to improve the dielectric performance of chitosan, by reducing the polarity. This paper presents the results of dielectric properties of natural rubber/chitosan blends. Special attention has been paid to analyze the effect of blend composition, vulcanization of the major phase and the influence of compatibilization using maleic anhydride on the dielectric properties of natural rubber/chitosan blends. The temperature dependence of dielectric properties on the blends has also been studied.

Research Highlights
► Addition of natural rubber improves the dielectric performance of Chitosan.
► The blend NR85CS15 shows the least frequency dependent and more stable.
► The dielectric loss decreases by vulcanization and Compatibilization.