熱可塑性ポリエステルエラストマーフィルムの延伸による構造変化

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タイトル別名
  • Superstructual Changes during Uniaxial Deformation of Thermoplastic Elastomer Films
  • ネツ カソセイ ポリエステル エラストマー フィルム ノ エンシン ニ ヨル コウゾウ ヘンカ

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抄録

Superstructural changes during uniaxial deformation of Thermoplastic Polyester Elastomer (TPEE) films having different composition ratios of poly (butylene terephthalate) (PBT) and poly (tetramethylene glycol) (PTMG) were studied. Evaluations were done using polarizing microscope, small-angle light scattering (SALS), thermal analysis, dynamic mechanical measurement, tensile test and infrared spectroscopic analysis. It was found that the spherulitic superstructure existed in all samples, and the optical axis in the spherulite depended on the basic composition of TPEE. In the case of large PBT composition, the crystal transition from α-form to β-form occurred due to elongation. It was thought that this was caused by the transmittance of external force to the PBT crystallite. Furthermore, spherulites having large PBT composition were collapsed by elongation. Those with small PBT compositions showed the elastic recoverable property on cyclic deformation. It can be called as spherulite eastomer.

収録刊行物

  • 成形加工

    成形加工 17 (9), 642-648, 2005-09-20

    一般社団法人 プラスチック成形加工学会

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