Abstract
β-phase polyvinylidene fluoride (PVDF)–BaTiO3 nanocomposite samples have been prepared by solution mixing method. XRD data represent that the crystallinity of PVDF decreases with increase in loading level of BaTiO3 nanoparticles. DSC curve represents that the melting point of PVDF is lightly affected by loading concentration of BaTiO3. The morphology and microstructure of PVDF and PVDF embedded by BaTiO3 nanofillers were investigated by using inverted contrast microscopy (ICM) and scanning electron microscopy (SEM). FTIR interferrometry is proven that PVDF and BaTiO3 are not chemically interacting; therefore, interaction of BaTiO3 is van der Waals type of interaction. The thermally stimulated discharge current (TSDC) of PVDF and PVDF–BaTiO3 nanocomposites sample was characterized by single peak. The observed TSDC peak is discussed on the basis of dipolar and interfacial polarization.
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Acknowledgements
The authors are thankful to Science and Engineering Research Board (SERB), DST, New Delhi (India) (letter no. SR/S2/CMP-0091/2010) for providing financial support. The authors are also thankful to Director, AIRF-JNU New Delhi 377, (India) for providing FTIR, SEM, and XRD characterization facilities. The technical advice of Prof. Ranjit Singh is highly solicited. The facilities provided by Director, Hindustan College of Science and Technology are gratefully acknowledged.
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Gaur, M.S., Singh, P.K., Ali, A. et al. Thermally stimulated discharge current (TSDC) characteristics in β-phase PVDF–BaTiO3 nanocomposites. J Therm Anal Calorim 117, 1407–1417 (2014). https://doi.org/10.1007/s10973-014-3908-y
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DOI: https://doi.org/10.1007/s10973-014-3908-y