Application of the Time-Temperature Superposition Principle to the Shear and Uniaxial Elongational Flow for Polymer-Inorganic Particle Composite Melt.

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  • 高分子／無機粒子複合系溶融体のせん断および伸長流動における時間‐温度換算則の適用
  • コウブンシ ムキ リュウシ フクゴウケイ ヨウユウタイ ノ センダン オヨビ

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Dynamic viscoelasticity, steady state shear viscosity and transient uniaxial elongational viscosity of a polystyrene/whisker composite melt were measured in the temperature range from 140°C to 250°C. We applied the time-Temperature superposition principle to shear and elongational data. The shift factor αT was independent of the whisker content and the deformation style. The time-temperature superposition principle was applicable to the linear region of the uniaxial elongational viscosity for the composite melts. The strain rate dependence of the non-linear intensity indicated that the superposition principle is also applicable to the non-linear region of uniaxial elongational viscosity. In the linear region, the transient elongational viscosity for the composites was found to be very close to three times the shear viscosity.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 52 (8), 478-483, 1995

    The Society of Polymer Science, Japan

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