The conductive polyethylene oxide/polyvinyl chloride/polyaniline (PEO/PVC/PAni) films were studied in terms of filler loading and the naphthalene effect. The films were fabricated via solution casting using tetrahydrofuran as the solvent at room temperature. The analyses of tensile properties, scanning electron microscopy (SEM), electrical conductivity, Fourier transform infrared (FTIR), and thermogravimetric analysis were done on conductive PEO/PVC/PAni films. It is noticeable that the conductive PEO/PVC/PAni/naphthalene films exhibited an average of 10% tensile strength higher and an average of 14% Young's modulus higher compared to the conductive PEO/PVC/PAni films. The presence of naphthalene in the conductive films also improved the electrical conductivity while increasing the films' thermal stability. SEM analysis confirmed that naphthalene in conductive films offers better dispersion of PAni in the conductive PEO/PVC/PAni films. FTIR analysis has further proved that no new functional group was created with the presence of naphthalene. It showed that naphthalene only influence the filler–matrix interfacial adhesion physically. J. VINYL ADDIT. TECHNOL., 24:E186–E193, 2018. © 2018 Society of Plastics Engineers

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To cite this article: Mohd. Yazid, M. I. et al. (2018). Enhancement of electrical conductivity and tensile properties of conductive poly(vinyl chloride)/poly(ethylene oxide)/polyaniline conductive composite films: Effect of polyaniline loading and ethylene dimethacrylate.AbsTrACT: The effect of ethylene dimethacrylate (EDMA) as a surface modifier and polyaniline (PAni) loading on poly(vinyl chloride) (PVC)/poly(ethylene oxide) (PEO) matrix was investigated. PVC/PEO conductive composite films with different PAni loading were fabricated using solution casting technique. The inclusion of EDMA exhibited higher tensile strength, modulus of elasticity and electrical properties for all filler loadings of PVC/PEO/PAni conductive composite films. The scanning electron microscopy (SEM) morphology indicated that the inclusion of EDMA in conductive films provided decent fillers dispersion in the PVC/PEO phases. The structural modifications, if occurred, will be interpreted with the assistance of FTIR spectroscopy.

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