Effects of CNT/BaTiO3 composite particles prepared by mechanical process on dielectric properties of epoxy hybrid films

Abstract

A new type of composite filler mechanically treated with multi-walled carbon nanotubes (MWNTs) and BaTiO3 (BT) particles was prepared to produce higher dielectric properties in the composite. The hybrid film fabricated by incorporating these composite fillers in an epoxy matrix had a high dielectric constant and similar dielectric loss as compared to the composite which contained neat BT particles. The dielectric properties of these hybrid films were found to be dependent on both the content of MWNTs and mechanical processing time. Results suggest that this novel hybrid film composed of the composite filler and the epoxy matrix can be used for embedded capacitor material.