TSC properties of epoxy composites cured with acid-anhydride

Abstract

The TSC spectroscopy was applied to investigate an influence of structural change and interfacial state on the electrical noperties of epoxy composites cured with acid-anhydride. A addition of overaboundant hardener and inorganic filler separated a D peak near l0ECl into two peaks of P1(1OC) and P2('BO'c) and increased magnitude of TSC spectra between a and D peak, which would be closely related with the prccess of thermal oxidation and separation of hardener's phenyl group according to an introduction of interfacial deformation, an expansion of free volume and a reduction of structural paclung density. And the treatement of silane couphg agents on fder improved interfacial deformation to decrease the amplitude of TSC spectra