Cairo University

MTPR Journal

 

ON THE ELECTRICAL CONDUCTIVITY OF POLY(VINYLCHLORIDE)/POLY(ETHYLENE OXIDE) BLENDS

& doi: https://doi.org/10.1142/9789814504898_0017
G. M. NASR, S. M. ABD EL-WAHAB and A. ABD EL-ATHEM
Physics Department, Faculty of Science, Cairo University, Egypt

Vol./Issue: 13 , id: 358

Physical blending of different polymers is a very popular, simple and economical method of preparing composite with desirable and useful properties. The electrical conductivity of blends of amorphous poly(vinyl chloride) (PVC) with semicrystalline poly(ethylene oxide) (PEO) in the form of thin films has been measured by studying the I-V characteristics at room temperature and temperature dependence of the sample conductivity. The results are presented in the form of I-V characteristics and analysis has been made by interpretation of Poole Frenkel, Fowler-Nordheim and Schottky-Richardson plots. The analysis of these results suggests that Schottky - Richardson mechanism are primarily responsible for the observed conduction. Meanwhile, the percolation concentration of PEO in PVC matrix was found to be round 10%. Furthermore, the mechanism of electrical transport in this system is examined in temperature range 300-350K. The temperature dependence of conductivity gives evidence for the charge carriers transport mechanism via the occurred agreement of experimental results with the employed hopping models.