Space charge distribution in filled epoxy composites containing micro and nano fillers

Epoxies represent a good host polymer matrix for addition of fillers to create composite systems. By adding fillers or additives during the solution phase it is possible to easily create a composite system with a relatively high state of dispersion. Since epoxies represent good dielectric materials, much interest has been shown in the electrical charge characterization of such materials. This investigation studies the effect of addition of micro/Nano silicon dioxide and boron nitride to an epoxy matrix with respect to charge accumulation and transport. Data was collected using a PEA system on unfilled and filled systems with analysis and discussion on the effects that the fillers were having.