回転成形法におけるカーボンブラック充填ポリイミドベルトの電気抵抗率に与える遠心力の影響

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タイトル別名
  • Influence of the Centrifugal Force on the Electrical Resistivity of Carbon Black Filled Polyimide Belts in the Rotational Molding Method
  • カイテン セイケイホウ ニ オケル カーボンブラック ジュウテン ポリイミドベルト ノ デンキ テイコウリツ ニ アタエル エンシンリョク ノ エイキョウ

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抄録

The effects of the centrifugal force on the inhomogeneity of electrical resistivity and anisotropy in carbon black (CB) filled polyimide belts made by a rotational molding method were studied. High centrifugal forces produced an uneven distribution of CB which resulted in a large difference in surface resistance between the outside and the inside surfaces of the belts. In addition, CB particles with larger aggregates were oriented by the centrifugal forces. It was suggested that the uneven distribution of CB particles could be explained by Stokes' sedimentation law. It was found that the selection of acidic CB, which does not form an aggregate structure, was effective in reducing the in-plane anisotropy of the dielectric constant and resulted in a uniform electrical resistance in the belt thickness direction.

収録刊行物

  • 成形加工

    成形加工 16 (11), 729-734, 2004-11-20

    一般社団法人 プラスチック成形加工学会

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