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不同纳米填料填充聚偏氟乙烯基复合材料的介电松弛行为

, PP. 880-887

Keywords: BaTiO3,SiC,纳米石墨片,聚偏氟乙烯,介电松弛,复合材料

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Abstract:

以绝缘性BaTiO3、半导性SiC和具有导电性的纳米石墨片(GNP)为填料,采用溶液法制备了聚偏氟乙烯(PVDF)基复合材料,着重研究了具有不同性质的填料对PVDF基复合材料介电行为的影响。结果表明:随着不同纳米填料用量的增加,PVDF基复合材料的介电常数都有增大的趋势,尤其是添加半导性SiC和导电性GNP对PVDF基复合材料介电性能改善的效果最明显,其影响程度可由ε'-ε"曲线获知;当SiC和GNP含量高于渗流阈值后,其高频松弛峰趋于平直;采用介电模量的形式可以很好地描述材料在频率依赖下的松弛行为,其松弛激活能随着填料用量的增大而降低,表明填料的加入促进了PVDF基复合材料的极化。

References

[1]  Chiang C K, Popielarz R. Polymer composites with high dielectric constant[J]. Ferroelectrics, 2002, 275(1): 1-9.
[2]  Stoller M D, Park S, Zhu Y, et al. Graphene-based ultracapacitors[J]. Nano Letters, 2008, 8(10): 3498-3502.
[3]  Arbatti M, Shan X, Cheng Z Y. Ceramic-polymer composites with high dielectric constant[J]. Advanced Materials, 2007, 19(10): 1369-1372.
[4]  王树彬, 徐廷献, 韩杰才, 等.PZT/PVDF压电复合材料的制备及其性能研究[J]. 复合材料学报, 2000, 17(4): 1-5. Wang Shubin, Xu Tingxian, Han Jiecai, et al. Preparation and properties of piezoelectric composites of PZT/PVDF[J]. Acta Materiae Compositae Sinica, 2000, 17(4): 1-5.
[5]  Dang Z M, Yuan J K, Zha J W, et al. Fundamentals, processes and applications of high-permittivity polymer-matrix composites[J]. Progress in Materials Science, 2012, 57(4): 660-723.
[6]  Tang H X, Lin Y R, Andrews C, et al. Nanocomposites with increased energy density through high aspect ratio PZT nanowires[J]. Nanotechnology, 2011, 22(1): 015702.
[7]  Dang Z M, Zheng Y, Xu H P. Effect of the ceramic particle size on the microstructure and dielectric properties of barium titanate/polystyrene composites[J]. Journal of Applied Polymer Science, 2008, 110(6): 3473-3479.
[8]  王岚, 党智敏. 碳纳米管填充的高介电常数聚合物基复合电介质材料[J]. 电工技术学报, 2006, 21(4): 24-28. Wang Lan, Dang Zhimin. Carbon nanotube filled polymer-based dielectric composites with high dielectric constant[J]. Transactions of China Electrotechnical Society, 2006, 21(4): 24-28.
[9]  Li Y C, Tjong S C, Li R K Y. Electrical conductivity and dielectric response of poly(vinylidene uoride)-graphite nanoplatelet composites[J]. Synthtic Metals, 2010, 160(17-18): 1912-1919.
[10]  Dang Z M, Zhang Y H, Tjong S C. Dependence of dielectric behavior on the physical property of fillers in the polymer-matrix composites[J]. Synthetic Metals, 2004, 146(1): 79-84.
[11]  Asami K. Characterization of heterogeneous systems by dielectric spectroscopy[J]. Progress in Polymer Science, 2002, 27(8): 1617-1659.
[12]  Mdarhri A, Khissi M, Achour M E, et al. Temperature effect on dielectric properties of carbon black filled epoxy polymer composites[J]. The European Physical Journal Applied Physics, 2008, 41(3): 215-220.
[13]  Muhammad A J E, Joy P A, Kurian P, et al. Synthesis of nickel-rubber nanocomposites and evaluation of their dielectric properties[J]. Materials Science and Engineering: B, 2009, 156(1): 24-31.
[14]  MacCrum N G, Read B E, Williams G. Anelastic and dielectric effects in polymeric solids[M]. New York: Wiley, 1967: 617.

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