Electrical and Shielding Properties of Epoxy Composites with Combined Fillers (SiO 2 -Fe 2 O 3 )/CNT and (SiO 2 -Fe 3 O 4 )/CNT

The paper presents the results of investigation of multi-component epoxy composites containing silica gel globules coated with Fe oxide particles (SiO 2 -Fe oxide) and multi-wall carbon nanotubes (CNTs). The structure and phase composition of (SiO 2 -Fe oxide) globules were examined by XRD analysis, scanning electron microscopy, FTIR and Raman spectroscopy. It was found that the combination of SiO 2 particles, (SiO 2 -Fe oxide) particles and conductive carbon nanotubes in epoxy composites leads to a sufficient increase in electrical conductivity compared to two-phase CNT/epoxy CM. For all samples of SiO 2 /CNT- and 22 wt.