The Dielectric Properties of PP-EVA-Organoclay Composites

Polymer blend immiscibility is detrimental to dielectric applications. Herein we report on the use of an organoclay nanoflller as a compatibilizer to a polymer blend of polypropylene and a copolymer of ethylene and vinyl acetate. The organoclay is found to suppress phase separation of the blend, increase the electrical conductivity and permittivity of the composites, whilst simultaneously decreasing the DC breakdown strength.