Indian Journal of Pure and Applied Physics

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Dielectric Relaxation Studies of Cellulose-Water Mixtures Using Time and Frequency Domain Technique


Affiliations
1 School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, 431 606, India
2 Department of Physics, Lal Bahadur Shastri Mahavidyalaya, Dharmabad, 431 802, India
 

The complex dielectric permittivity of hydroxypropyl methyl cellulose (HPMC)-water mixture was measured by using Time Domain Reflectometry (TDR) and Frequency Domain (LCR) Technique at 25 ° C. The complex dielectric permittivity ε*(ω), complex electrical modulus M*(ω), complex electrical conductivity σ*(ω), loss tangent (tanδ), static dielectric constant (ε0) and relaxation time (τ) have been determined for the cellulose-water system.

Keywords

Complex Permittivity Spectra, Relaxation Time, Electrode Polarization, Precision LCR Meter, TDR, HPMC.
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  • Dielectric Relaxation Studies of Cellulose-Water Mixtures Using Time and Frequency Domain Technique

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Authors

S H Saknure
School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, 431 606, India
N P Garad
School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, 431 606, India
A G Gubre
School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, 431 606, India
Y S Joshi
Department of Physics, Lal Bahadur Shastri Mahavidyalaya, Dharmabad, 431 802, India
A C Kumbharkhane
School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, 431 606, India

Abstract


The complex dielectric permittivity of hydroxypropyl methyl cellulose (HPMC)-water mixture was measured by using Time Domain Reflectometry (TDR) and Frequency Domain (LCR) Technique at 25 ° C. The complex dielectric permittivity ε*(ω), complex electrical modulus M*(ω), complex electrical conductivity σ*(ω), loss tangent (tanδ), static dielectric constant (ε0) and relaxation time (τ) have been determined for the cellulose-water system.

Keywords


Complex Permittivity Spectra, Relaxation Time, Electrode Polarization, Precision LCR Meter, TDR, HPMC.

References