High Field Electrical Conduction in the Nanocomposite of Low-density Polyethylene and Nano-SiO_x

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Molecular structure and morphology of a nanocomposite of low-density polyethylene (LDPE) and nano-SiO<sub>x</sub> were studied by dynamic mechanical analysis (DMA). The storage modulus (<i>E<sup>/</sup></i>) and the glass transition temperature (<i>T<sub>g</sub></i>) of the nanocomposite are higher than those of pure LDPE and vary with nano-SiO<sub>x</sub> contents in U-shapes. High field electrical conduction in the nanocomposite was investigated in the range of 293K˜353K, which is consistent with a theory based on the conventional thermally activated ionic hopping conduction. The average hopping distance for the nanocomposite containing 1wt % nano-SiO<sub>x</sub> shifts from 4.3 to 4.7 nm as the temperature increases from 293K to 353K. Space charge distribution was taken to confirm ionic hopping conduction being the dominant one in the nanocompostie. It is interesting that the relationship between nano-SiO<sub>x</sub> content and DC conduction was similar to a percolation conduction existing in a composite of conductive particles (or semi conductive particles) and a polymer. At last, high field electrical conduction mechanism in the composite was discussed on the basis of microscopic structure of the nanocomposite.

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  • 電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society  

    電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society 126(11), 1064-1071, 2006-11-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10018317718
  • NII書誌ID(NCID)
    AN10136312
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    03854205
  • NDL 記事登録ID
    8561710
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-793
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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