Comparative study of the influence of carbon nanotubes and graphene nanoplatelets on dielectric and microwave properties of conductive rubber composites

Author(s): Omar A.Al-Hartomy, Ahmed A.Al-Ghamdi, Nikolay Dishovsky, Rossitsa Shtarkova, Vladimir Iliev, Farid El-Tantawy

In this study the effect of carbon nanotubes (CNT) and graphene nanoplatelets (GNP) at various weight ratios on the dielectric (dielectric permittivity, dielectric loss angle tangent) andmicrowave (reflection coefficient, attenuation coefficient, shielding effectiveness) properties of conductive nanocomposites on the basis of natural rubber containing a constant amount of standard furnace carbon black has been investigated in the wide frequency range (1-12 GHz). Some additional investigations on the morphology and microstructure of the graphene particles, carbon nanotubes and furnace carbon black used have been carried out by transmission electron microscopy (TEM) and selected area electron diffraction

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