チタンカーバイド/ポリエチレン導電性複合材料の粒子充填構造とPTC特性 PTC Characteristics of (TiC/Polyethylene) Conductive Composites in Relation to their Particle-filled Structures

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著者

    • 片岡 光宗 KATAOKA Mitsuhiro
    • 山形大学工学部機能高分子工学科 Department of Polymer Science & Engineering, Faculty of Engineering, Yamagata University
    • 増子 徹 MASUKO Toru
    • 山形大学工学部機能高分子工学科 Department of Polymer Science & Engineering, Faculty of Engineering, Yamagata University

抄録

Titanium carbide (TiC) / polyethylene (PE) composites have been prepared with various volume fractions of TiC by a melt blending method. Two types of TiC powder with their different particle diameters, 1.48 μm (TiC-A) and ca.100 μm (TiC-B), were utilized in the present study. The electric resistivities (ρ) of the samples decreased gradually with increasing TiC volume fraction (φ<sub>A</sub>); in the case of smaller particle size, the value of ρ at room temperature jumped down in the relatively narrow range of φ<sub>A</sub> = 0.39 - 0.42, reaching itself as low as 0.1 Ωcm. Temperature dependencies of ρ were also measured to examine the possible application of the composite to polymer PTC thermistors. The resistivity showed positive temperature dependence and changed abruptly in the tenth order of its magnitude during the melting transition of PE. The electric current-cutoff characteristics of the samples indicated excellent features in the over current response despite their low resistivity values, as compared with those of other PTC materials. In parallel, the mechanism of conductivity of the composite was discussed in terms of the percolation theory.

収録刊行物

  • 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 124(4), 337-343, 2004-04-01

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10012705947
  • NII書誌ID(NCID)
    AN10136312
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854205
  • NDL 記事登録ID
    6909357
  • 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  NDL  J-STAGE 
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