炭酸ガスレーザー加熱延伸されたポリエチレンテレフタレート繊維の分子鎖配向挙動と結晶化度

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  • The Molecular Orientation Behavior and the Crystallinity of CO2 Laser-Heated Drawn Poly(ethylene terephthalate) Fiber

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The molecular orientation behavior and crystallinity of laser-heated drawn poly (ethylene terephthalate) fiber was analyzed by DSC, FTIR-ATR, WAXD, density, and refractive indices measurements. Trans-conformation and crystallinity increased with draw ratio. Fixed length annealing increased crystal orientation and fold-band fraction for all fibers. By the annealing, birefringence and the orientation of crystal c-axis to fiber axis were increased for four times drawn fibers, while they were decreased for six times drawn fibers. The big decrease of gauche-conformation by the annealing was observed for the fiber drawn to six times with the minimum laser power for stable drawing.

収録刊行物

  • 繊維学会誌

    繊維学会誌 59 (6), 235-238, 2003

    社団法人 繊維学会

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