Influence of NiCl2/CdCl2 as Mixed Filler on Structural, Thermal and Electrical Properties of PVA/PVP Blend
I. S. Elashmawi *
Department of Spectroscopy, Physics Division, National Research Center, Giza, Egypt. & Department of Physics, Faculty of Science, Al-Ula, Taibah University, Saudi Arabia.
E. M. Abdelrazek
Department of Physics, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt.
A. Y. Yassin
Department of Physics, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt.
*Author to whom correspondence should be addressed.
Abstract
The present work is focusing on characterizing the films of poly (vinyl alcohol) (PVA) and poly (vinyl pyrrolidone) (PVP) with various mass fractions of NiCl2/CdCl2 by different techniques. XRD scans revealed the semicrystalline nature of the prepared films and demonstrated that complexation between the blend and the filler took place in the amorphous region. FT-IR and UV-visible studies confirmed these results. UV-visible analysis also revealed that the optical energy gap was affected by adding the mixed filler, indicating that there are charge transfers complexes arose in the polymer blend matrices. DSC revealed single Tgwhich indicates miscibility of the prepared films. The electrical conductivity was enhanced from 2.16 x 10-8S/cm of pure blend to 1.1 x 10-4 S/cm for the blend filled with 20 wt % of the mixed filler so, From these data the prepared films can be used for rechargeable batteries.
Keywords: Polymer blends, miscibility, DSC, XRD, DC conductivity