Study the effect of kaolin on the electrical properties of polyvinyl acetate-polyol composite

Abstract

Polyvinyl acetate and polyol (PVA-Polyol) has been blended in percentage by weight 3:1 and a mixture has been done by mixing different percentages by weight of kaolin for electrical measurements. Diagnosis of kaolin was measured by FTIR spectrophotometer. Quality factor (Q), dissipation factor (D), parallel resistance (R), pseries resistance (R), impedance (Z), series capacitance (C) and parallel capacitance ss(C) and Phase angle (Φ) were measured. The maximum electrical conductivity is pfound 6794 S.m-1 for samples 1, 3wt% kaolin and the minimum electrical conductivity is 1x10-5 S.m-1 for sample (2) 5wt% kaolin. Dielectric constants (έ), dielectric loss (έ′), have been studied and calculated. The frequency dependent ac conductivity (σ) and frequency independent dc conductivity (σ) has studied and acdcinvestigated. The calculated minimum and maximum ac conductivity (σ) is 3.2x10-5 acS.m-1 for samples (3) 6wt % kaolin and 0.45 S.m-1 for sample (2) 5wt % kaolin. The minimum and maximum calculated independent frequency dc conductivity (σ) is -dc 0.3472 S.m-1 for sample (2) 5wt % kaolin and 1.1671 S.m-1 for sample (1) 3wt % kaolin.