Abstract
This study presents enhancement in the energy storage density and dielectric properties of polypropylene (PP) based dielectric nanocomposites for energy-power application. Although conductive nanomaterials such as carbon nanotubes (CNTs) have shown significant potential in improving the dielectric constant of polymeric materials, they often show high energy loss and low voltage endurance. Therefore, the contribution of this study is to address these challenges by decorating CNTs with insulative barium titanate (BT) for the development of PP nanocomposites with improved energy storage density. The dielectric nanomaterials were developed by solution and melt mixing using the CNTs decorated BT (BT@CNTs) and PP matrix. The developed dielectric nanocomposites showed significant enhancement in the energy storage capacity and dielectric properties. Where about 142.9% increase in energy density was recorded. This was attributed to the formation of microcapacitors and improved interfacial polarization in the polymer matrix offered by the presence of the nanoparticles.
Published Version
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