Microwave Dielectric Behaviour of 1,2‐Propanediol‐Water Mixture Studied Using Time Domain Reflectometry Technique |
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Authors: | Satyajit Chavan Ashok Kumbharkhane Suresh Mehrotra |
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Institution: | 1. School of Physical Sciences, Swami Raman and Teerth Marathwada University, Nanded 431 606, (MS) India;2. Department of Computer Science & Information Technology, Dr. B.A. Marathwada University, Aurangabad 431 004, (MS) India |
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Abstract: | The dielectric behaviour of 1,2‐propanediol was investigated to understand the effect of the hydroxyl group on the dielectric parameters. The measurement of permittivity ?î and ?îî of 1,2‐propanediol was carried out in the frequency range 10 MHz to 20 GHz at 25 °C temperature. Static permittivity and dielectric relaxation time are extracted from a 1,2‐propanediol‐water mixture using the bilinear calibration method and non‐linear least squares fit method. Calculated Kirkwood correlation factor contains information regarding solute‐solvent interaction. The hydrogen bonded model suggested by Luzar is applied to determine the molecular parameters. The excess dielectric parameters and Bruggeman factor show the systematic change in the dielectric parameter of the system with change in concentration. |
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Keywords: | Dielectric constant Mixture Time domain reflectometry |
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