Structural and Dielectric Studies of MWCNT Reinforced Microcellular Silicone Elastomer Nanocomposite

Microcellular silicone rubber nanocomposites, filled with 2 phr multi-walled carbon nanotubes (MWCNTs), were prepared by a two roll mixing mill with different blowing agent concentrations. The distribution of the conductive nanoparticles has been investigated with scanning electron microscopy (SEM). The FTIR spectra of nanocomposites have been studied in the range of 500-4000 cm-1 and their corresponding peaks have been assigned. The effect of MWCNT on dielectric properties of microcellular silicone elestomer nanocomposites were studied in the frequency range of 100 Hz–5 MHz to understand the electrical conduction mechanism.