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http://hdl.handle.net/10397/34744
Title: | Enhanced ferroelectric and pyroelectric properties of poly(vinylidene fluoride) with addition of graphene oxides | Authors: | Jiang, ZY Zheng, GP Zhuo, H Liu, YZ Yang, JH |
Issue Date: | 2014 | Source: | Journal of applied physics, 2014, v. 115, no. 20, 204101, p. 204101-1-204101-6 | Abstract: | Poly(vinylidene fluoride)/graphene oxide (PVDF/GO) nanocomposites are synthesized and their structural, ferroelectric, and pyroelectric properties are investigated. The dielectric spectrum analysis and P-E loop tests indicate that the nanocomposites exhibit enhanced ferroelectric and pyroelectric properties compared with those of poly(vinylidene fluoride) samples. The isothermal crystallization kinetics of PVDF/GO nanocomposites quantitatively determined by differential scanning calorimetry demonstrates that GOs facilitate the crystallization of the PVDF. Dynamic mechanical analyses on the PVDF/GO reveal that the amorphous and crystalline phases of PVDF are modified by the addition of GO sheets. The GO-enhanced formation of crystalline β phase in PVDF could result from the strong interaction between the –C = O groups in GO and the –CF2 groups in PVDF, and the GO-induced ordering of the microstructures of amorphous and crystalline phases. The results suggest that PVDF/GO nanocomposites could be promising dielectric materials used in sensors, transducers, and actuators. | Publisher: | American Institute of Physics | Journal: | Journal of applied physics | ISSN: | 0021-8979 | EISSN: | 1089-7550 | DOI: | 10.1063/1.4878935 | Rights: | © 2014 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Z. Y. Jiang et al., J. Appl. Phys. 115, 204101 (2014) and may be found at https://dx.doi.org/10.1063/1.4878935 |
Appears in Collections: | Journal/Magazine Article |
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