Spectroscopic, optical and thermal characterization of polyvinyl chloride-based plasma-functionalized MWCNTs composite thin films

In this work, homogeneous PVC/MWCNT nano-composite films with different concentrations of MWCNTs were prepared. The MWCNTs were treated with plasma to improve their compatibility in the PVC matrix. The prepared films are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS...

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Veröffentlicht in:Applied physics. A, Materials science & processing Materials science & processing, 2019-07, Vol.125 (7), p.1-8, Article 475
Hauptverfasser: Abdel-Fattah, E., Alharthi, A. I., Fahmy, T.
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Sprache:eng
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Zusammenfassung:In this work, homogeneous PVC/MWCNT nano-composite films with different concentrations of MWCNTs were prepared. The MWCNTs were treated with plasma to improve their compatibility in the PVC matrix. The prepared films are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, UV–visible spectroscopy (UV–Vis.) and thermogravimetric analysis (TGA). The XRD, XPS, FTIR and Raman results suggest that the plasma-functionalized MWCNTs are well dispersed and interacted with the PVC. XPS results show that the stoichiometric contents of C and O groups relatively increased with the increasing percentage of MWCNTs in the nano-composite, meanwhile, Cl group decreased. The optical band gap E g of PVC–MWCNTs decreases with the increasing MWCNTs percentage in the nano-composite. Increasing the percentage of MWCNTs in the PVC nano-composite improves thermal stability, dielectric constant and AC conductivity.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-019-2770-y