<strong>Preparation and characterization of MWCNT/Zn_0.25Co_0.75Fe₂O₄ nanocomposite and investigation of its microwave absorption properties at x-band by silicone rubber polymeric matrix</strong>

Abstract

Microwave absorption has attracted a considerable attention in the last decade. Various factors have effect on the microwave attenuation such as permittivity and permeability of absorbers. In this research, these properties were provided by multiwall carbon nanotube (MWCNT) as a conductive polymer and Zn 0.25 Co 0.75 Fe 2 O 4 as a magnetic nanoparticle. MWCNTs were functionalized with carboxylic acid groups through the sonochemical method by the mixture of nitric and sulfuric acid, due to their better dispersion in the medium reaction and enhancing interfacial polarization, and then magnetic nanoparticles were formed base on the functionalized MWCNTs through the sonochemical and solvothermal complementary methods by use of ethylene glycol as a solvent.