Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Synchrotron Wide Angle X-ray Diffraction Analysis of Annealed PLLA Spin Draw Yarns

열처리한 PLLA SDY 섬유의 방사광 광각 X-선 회절 분석

  • Kim, Min-Sup (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Kim, Young-Ho (Department of Organic Materials and Fiber Engineering, Soongsil University)
  • 김민섭 (숭실대학교 유기신소재.파이버공학과) ;
  • 김영호 (숭실대학교 유기신소재.파이버공학과)
  • Received : 2009.12.27
  • Accepted : 2010.02.04
  • Published : 2010.02.28
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Abstract

Poly(L-lactic acid) (PLLA) filament fibers prepared by one-step melt spinning process with spin drawing were annealed at $100^{\circ}C$ and $120^{\circ}C$ and the effects of annealing on the crystal structure, crystallinity, and orientation of PLLA were studied by using synchrotron wide angle X-ray diffraction (WAXD) method. The PLLA SDY fibers of this study showed an ${\alpha}$-form crystal structure which was not affected by the annealing. The crystallity, crystallite size of the (200) plane of ${\alpha}$-form crystal, total orientation (${\Delta}n$), and crystalline orientation ($f_c$) increased with increasing annealing time up to 30 minutes at 100 and $120^{\circ}C$.

Keywords

Acknowledgement

Supported by : 한국과학재단

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