Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Structural Stabilization of Poly(trimethylene terephthalate) Fibers by Drawing and Annealing

Poly(trimethylene terephthalate) 섬유의 연신과 열처리에 따른 구조 안정화

  • 윤희정 (부산대학교 공과대학 섬유공학과) ;
  • 김주애 (경상대학교 의류학과) ;
  • 조현혹 (부산대학교 공과대학 섬유공학과)
  • Published : 2001.12.01

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Abstract

The effects of drawing temperature and annealing temperature on the physical properties and structure of poly(trimethylene terephthalate)(PTT) fibers were investigated by measuring drawability, WAXD, DSC, density birefringence, dynamic viscoelasticity, and tensile testing. Undrawn and partially oriented PTT yarn had different optimum drawing temperatures because of their drawing behavior. As the annealing temperature increased, the intensity of maximum tan $\delta$ decreased and the temperature of maximum tan$\delta$ shifted to a higher temperature, but shifted to a lower temperature when the annealing temperature exceeded 130 $^{\circ}C$. As the annealing temperature increased, the crystallinity increased and mechanical properties was improved. The annealing was more effective in controlling the structure of PTT fibers than the drawing.

Keywords

References

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