High-k Three-Phase Epoxy/K 1.6 (Ni 0.8 Ti 7.2 )O 16 /CNT Composites with Synergetic Effect

Polymer matrix composites based on ED-20 epoxy resin, hollandite K 1.6 (Ni 0.8 Ti 7.2 )O 16 and carbon nanotubes with a variable content of 0.107; 0.213 and 0.425 vol.% were obtained for the first time. Initial components and composites produced were characterized by XRD, XRA, FTIR, SEM and Raman spectroscopy. The dielectric properties of composite materials were measured by impedance spectroscopy and determined by the volume ratio of the composite components, primarily by the concentration of CNTs. At a CNT content of 0.213 vol.% (before percolation threshold), the maximum synergistic effect... Mehr ...