Dielectric Properties of Composites of Polypropylene with Zno-TiO 2 Core-Shell Nanoparticles
纳米Zno-TiO 2核壳复合材料的介电性能
作者: R. SampathkumarA. V. AswathyV. Balachandar
作者单位: 1Sathyabama Institute of Science and Technology, Department of Physics, Chennai, Tamil Nadu, 600119, India
刊名: Journal of Surface Science and Technology, 2019, Vol.34 (3-4), pp.121-128
来源数据库: Informatics Publishing Ltd
DOI: 10.18311/jsst/2018/20118
关键词: Dielectric PropertiesFilm Capacitor ApplicationNanocompositesPercolation ThresholdPolypropylene MatrixZnO-TiO2 Core-Shell Nanoparticles
原始语种摘要: Composites of polypropylene with different weight percentages of ZnO-TiO 2 core-shell nanoparticles were prepared by the combination of solution and mixture melting methods. Dielectric properties of polypropylene composite films were studied at frequencies ranging from 50 Hz to 5 MHz at four different temperatures (313, 333, 353, and 373 K). It is observed that the dielectric constant reduces quickly in the low-frequency range followed by a near frequency independent behavior above 1 KHz. The dielectric properties of composites at low frequency can be explained by interfacial polarization or Maxwell-Wagner-Sillars effect. It is also observed that the dielectric constant reaches the maximum value at 3 wt% of ZnO-TiO 2 , which is the percolation threshold of nanocomposite. As the weight...
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关键词翻译
关键词翻译
  • Shell 护罩
  • polypropylene 聚丙烯
  • percolation 渗透
  • dielectric 电介质
  • composites 菊科植物
  • shell 贝壳
  • properties 道具
  • threshold 阈值
  • constant 常数
  • interfacial 界面的