Effect of Temperature and Doping Ratios on Electrical Conductivity of Lignin Resin with Rhodamine B

Electrical conductivity of lignin resin films doped with different ratios of Rhodamine B (0.01, 0.04, 0.06, 0.08, 0.1)% wt, were studied. The composite films prepared using casting method. The result showed that the conductivity increased with increasing temperature and doping ratios. The values of activation energy decreased with increasing temperature and doping ratios of dyes.                                                                       

Keywords: Activation energy, DC Conductivity, Lignin resin, Rhodamine B