Radiant flux reflectivity model of nanocomposite dielectric materials

Abstract

A radiant-flux reflectivity model is developed to estimate the reflectance of the radiant flux in nanocomposite dielectric materials. The model considers reflectance, transmittance and absorbance in all components of the composite material. The model is applied to pristine PTFE and to a PFTE-based nanocomposite. The results are compared to the experimental data available in the literature. The simulation results show that the variation of the reflectance simulated for pristine PTFE samples of different thicknesses increases with increasing wavelength and decreases with increasing sample thickness. A comparison of the simulation results with the experimental data obtained by different researchers showed a qualitative agreement between the simulations and the experimental data.