小角光散乱法によるポリエチレンテレフタレートフィルムの延伸挙動の研究

書誌事項

タイトル別名
  • Small-Angle Light Scattering Studies on Stretching Behavior of Poly (ethylene terephthalate) Films
  • ショウカク ヒカリ サンランホウ ニ ヨル ポリエチレン テレフタレート フィルム ノ エンシン キョドウ ノ ケンキュウ

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説明

Studies on the stretching behavior of PET films were performed by small-angle light scattering (SALS). On uniaxial stretching, a butterfly shape was obtained in the Hv light scattering pattern, which indicates the existence of a sheaflike crystalline superstructure in the stretched films. In the case of biaxially stretched films, the SALS patterns change remarkably depending on the stretching conditions such as stretching temperature and stretching ratio. A three step stretching system in which machine direction stretching is divided into two steps is effective in obtaining biaxially stretched films having 8 leaf SALS patterns including the butterfly shape.<br>Numerical calculations based on the sheaf array model were carried out for the interpretation of experimentally obtained SALS patterns. Results of the calculated patterns show good agreement with experimental ones.

収録刊行物

  • 成形加工

    成形加工 14 (6), 378-385, 2002

    一般社団法人 プラスチック成形加工学会

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