Effect of type of conductive fillers and poly (ethylene glycol) diglycidyl ether on the electrical conductivity and morphology properties of poly (vinyl chloride)/poly (ethylene oxide) conductive films

Abstract

The addition of poly (ethylene glycol) diglycidyl ether (PEDGE) as surface modifier and type of conductive fillers into poly (vinyl chloride) (PVC)/poly (ethylene oxide) (PEO) blends was studied. PVC/PEO blends conductive films with 15 wt% of carbon black (CB), poly (aniline) (PAni), and poly (pyrrole) (PPy) were prepared using solution casting technique. The addition of PEGDE showed lower tensile strength, but higher modulus of elasticity and electrical conductivity for all compositions of PVC/PEO conductive films. Scanning electron microscopy (SEM) results show that the addition of PEGDE in conductive films gives good dispersion between matrix and fillers. The PVC/PEO conductive films demonstrated less thermal stability with the addition of PEGDE compared to without PEDGE.