Performance of Electromagnetic Properties of Carbon Fiber Reinforced and AuNPs Functionalized MWCNTs Doped Hybride Composites

Abstract

We compare the electromagnetic absorption properties of carbon fiber layer composite materials produced separately using Au-particle-doped multi-wall carbon nanotube (MWCNT) added epoxy with pure MWCNT added epoxy resin. This new material, produced using MWCNT doped with Au particles, increases its radar absorption capability, giving the as-prepared electromagnetic absorber enormous potential in future military and aviation applications. Multilayer composite materials, consisting of Au/MWCNT-doped epoxy, MWCNT-doped epoxy, and pure epoxy, were produced by vacuum infusion method. Electromagnetic absorbing properties of the produced materials were determined with the Agilent brand 2-Port PNA-L Network Analyzer device by conducting transmission/reflection measurements in the frequency range of 3–18 GHz. The electromagnetic absorbing properties of the produced composite materials were taken in two different measurements, both with and without metal plate. Measurements made using two horn antennas show that the produced MWCNT-doped and Au/MWCNT-doped carbon fiber laminated composite material has good absorption behavior when used with metallic sheets and is good for RADOM applications at many points at 3–18 GHz.