ABSTRACT
In this study, Copper-Polyaniline nanocomposite (Cu-PAni) has been synthesized by
gamma radiolysis as a novel method and was confirmed by different analytical
techniques such as Scanning Electron Microscope (SEM), Transmission Electron
Microscope (TEM), X-ray powder diffraction (XRD).. The thermal conductivity of the
nanofluids has been measured at different nanofluids volume fractions of 0.2%,
0.4%, 0.6%, 0.8% and 1.0%. The effect of nanofluid temperature on the nanofluid
properties is measured in the range from 10oC to 90oC. The data gained discovered
that the copper nanoparticle completely covered by a layer of polyaniline with
different thickness and the particle size distributed around 21.42 nm. The thermal
conductivity ratio of the Copper-Polyaniline nanocomposites water nanofluid
increases 107% at nanofluid temperature of 10oC and 159 % at 90oC for a volume
fraction of 1.0%. The Cu-PAni nanocomposite can be used as a potential material for
thermal conductivity enhancement of water based nanofluid.