Improving the Dielectric Properties of High Density Polyethylene by Incorporating Clay-Nanofiller
Abstract: Polymer
nanocomposites have been used for various important industrial applications.
The preparation of high density polyethylene composed with Na-montmorillonite
nanofiller using melt compounding method for different concentrations of
clay-nano filler of 0%, 2%, 6%, 10%, and 15% has been successfully done. The
morphology of the obtained samples was optimized and characterized by scanning
electron microscope showing the formation of the polymer nanocomposites. The
thermal stability and dielectric properties were measured for the prepared
samples. Thermal gravimetric analysis results show that thermal stability in
polymer nanocomposites is more than that in the base polymer. It has been shown
that the polymer nanocomposites exhibit some very different dielectric
characteristics when compared to the base polymer. The dielectric breakdown
strength is enhanced by the addition of clay-nano filler. The dielectric
constant (εr) and dissipation factor (Tan δ) have been studied in the frequency
range 200 Hz to 2 MHz at room temperature indicating that enhancements have
been occurred in εr and Tan δ by the addition of clay-nano filler in the
polymer material when compared with the pure material.
Keywords: polymer
nanocomposites, high density polyethylene, dielectric breakdown, dielectric
constant, dissipation factor
Author: Ahmed Sayed Haiba,
Ossama El-sayed Gouda, Sohair Fakhry Mahmoud, Ahmed Aboud El-gendy
Journal Code: jptkomputergg140089
