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Investigation on the dielectric properties of nano-titanium dioxide - Low density polyethylene composites

  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

15 引用 (Scopus)

摘要

Dielectric properties of nano-titanium dioxide (TiO2) with diameter about 25nm - low density polyethylene (LDPE) composites were investigated at the temperature ranging from 293K to 343K with the frequency ranging from 0.1Hz to 100kHz in the present paper. Experimentally, we observed two peaks in the spectrums; one appears in both pure and incorporated LDPE (abbreviated as peak A) while the other appears only in the samples with nano-TiO2 content exceeding 1wt% (abbreviated as peak B). The activation energies calculated from dielectric spectrum for peak A and peak B are 1.09eV and 0.8eV respectively; they are independent of the concentration of TiO2 nanofiller. Furthermore, the position of peak B is also independent of the nano-TiO2 content in the frequency spectrums. Thus, it is reasonable to conclude that peak B is intrinsic, corresponding to the α response of LDPE while peak A may originate from the traps at the "Interaction Zone" around the nanoparticles. The dielectric properties of nanocomposite were determined by such "Interaction Zone".

源语言英语
主期刊名Proceedings of the 2010 IEEE International Conference on Solid Dielectrics, ICSD 2010
DOI
出版状态已出版 - 2010
活动2010 IEEE International Conference on Solid Dielectrics, ICSD 2010 - Potsdam, 德国
期限: 4 7月 20109 7月 2010

丛书

姓名Proceedings of the 2010 IEEE International Conference on Solid Dielectrics, ICSD 2010

会议

会议2010 IEEE International Conference on Solid Dielectrics, ICSD 2010
国家/地区德国
Potsdam
时期4/07/109/07/10

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