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In this paper, development and electrical characterization of sisal powder filled polyvinyl alcohol (PVA) composites is reported. Dielectric measurements were conducted on these composites on a LCR meter in the temperature range from 30 to 150 °C and in the frequency range 1 kHz - 10 kHz. The effects of temperature and frequency variation on dielectric constant (e’), dielectric dissipation factor (tan δ) and on a. c. conductivity (σa.c.) were determined. On increasing the filler content, dielectric constant increased, it was mainly due to motion of the dipolar groups of the interfacial polarization occurring in the composites. The conductivity increased with rise in temperature. Keywords: PVA, Electrical Properties, Dielectric Properties, Electrical Conductivity

Preparation, dielectric and a.c. conductivity studies on chemically treated sisal powder filled polyvinyl alcohol biocomposites