Wide band characterization of MWCNTs Composites based on epoxy resin: Complex permittivity and shielding effectiveness

In this work, the electrical properties of nanocomposites obtained by dispersing multi walled carbon nanotubes in epoxy resins are investigated. Two measurement techniques to determine the complex permittivity in the range of 500 MHz to 4 GHz are compared. The results are further discussed based on the carbon filler content and the number of carbon nanotubes dispersed in the polymer matrix