Dielectric Behavior of Medical PMMA Polymer Filled With Copper Nanobud Particles

In this paper, the influence of weight fraction and frequency on dielectric features of polymethylmethacrylate filled with Copper nanobud particles has been investigated. Copper nanoparticles (Cu-NPs) have been synthesized by chemical reduction method. The resultant Copper nanoparticles were characterized by UV-Vis spectroscopy and X-ray diffraction (XRD). Results show that the Cu-NPs have bud shapes, and their average particle size obtained from the XRD study is 53.78 nm. For the resultant composite materials, the dielectric behavior of composite materials reinforced with 5%, 10%, 15%, and 20% weight fractions of Copper nanobud particles and frequency ranges of 50, 250, 10(3), 10(4,) 105, and 10(6) Hz at 25 degrees C were investigated. Results reveal that the dielectric constant, dielectric loss factor and dissipation factor increased with the increase in weight fraction of Copper nanobud particles as a result of their high conductivity. The dielectric constant, dielectric loss and dissipation factor have decreased with the frequency increase. Such dielectric parametric investigations are useful to understand their application limitations not only for electronic apllications but also for feasible medical uses.