Complex dielectric permeability and optical characteristics of polypropylene + Na-=SUP=-+-=/SUP=- montmorillonite composites

Abstract

The paper presents the results of studying the frequency dependence of the real and imaginary parts of the dielectric constant of polypropylene modified with Na+ montmorillonite. Using the experimental values of the complex dielectric constant, the optical functions such as the real and imaginary parts of the refractive index, optical conductivity, reflection and absorption coefficients, the characteristic function of the electron energy losses of PP+x vol.% NaNa+ montmorillonite composites have been determined It is shown that on the basis of a high-pressure polymer with the use of Na + montmorillonite as a filler, it is possible to create composite materials with improved physical parameters. To obtain stable electrophysical properties, it is necessary to optimize the composition of the composite material and the volume of the filler. By the method of dielectric spectroscopy in the frequency course, information is obtained not only on the behavior of the complex dielectric constant, but also on the structure of the composite material, which is indispensable for the purposeful regulation of the volumetric content of the filler. Keywords: Na+-montmorillonite, polypropylene, dielectric constant, composite materials.