Dielectric and Microwave Properties of Fullerenes Containing Natural Rubber-based Nanocomposites

• Published in: Fullerenes, nanotubes, and carbon nanostructures nanotubes, and carbon nanostructures, 2014-02, Vol.22 (4), p.332-345
• Main Authors: Al-Hartomy, Omar A., Al-Ghamdi, Ahmed A., Al-Salamy, Falleh, Dishovsky, Nikolay, Slavcheva, Desislava, Iliev, Vladimir, El-Tantawy, Farid
• Format: Article
• Language: English
• Subjects: Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; dielectric and microwave properties; Exact sciences and technology; Fullerene; Fullerenes and related materials; diamonds, graphite; Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties; Materials science; Nanocrystalline materials; Nanoscale materials and structures: fabrication and characterization; Physics; rubber nanocomposites; Specific materials; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)
• ISSN: 1536-383X; 1536-4046
• DOI: 10.1080/1536383X.2012.684189

In this study, the influence of fullerenes in concentrations from 0.5 to 1.5 phr on the dielectric (dielectric permittivity, dielectric loss angle tangent) and microwave (reflection coefficient, attenuation coefficient, shielding effectiveness) properties of nanocomposites on the basis of natural rubber has been investigated in the 1-12 GHz frequency range. Some additional investigations on the morphology and microstructure of the studied composites have been carried out by scanning electron microscopy and transmission electron microscopy. To confirm to the high purity of the fullerene used Raman spectra and X-ray diffraction analysis were carried out.