Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

Manufacture and Properties of Shape Memory Polyurethane Fibers

형상기억 폴리우레탄 섬유의 제조 및 물성평가

  • Hong, Seok-In (Department of Materials Science and Engineering, Seoul National University) ;
  • Youk, Ji-Ho (Department of Advanced Fiber Engineering, Division of Nano-System Inha University) ;
  • Yu, Woong-Ryeol (Department of Materials Science and Engineering, Seoul National University)
  • 홍석진 (서울대학교 재료공학부) ;
  • 육지호 (인하대학교 나노시스템공학부) ;
  • 유웅열 (서울대학교 재료공학부)
  • Received : 2009.12.09
  • Accepted : 2010.04.07
  • Published : 2010.04.30
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Abstract

A shape memory polyurethane (SMPU) with a transition temperature of $28^{\circ}C$ was synthesized to investigate its fiber formation characteristics. Based on the thermal analysis a melt spinning process was designed, from which mono- and multi-filaments of SMPU fibers were manufactured. The shape memory performance of both SMPU film and fibers was evaluated using a thermo-mechanical cyclic test. The results revealed that SMPU fibers show similar shape memory behavior to that of SMPU film. The effect of post treatments such as annealing, drawing and heat-set on the shape memory performance of SMPU fibers was investigated and their effects on the micro-structural change of SMPU fibers were analyzed using a molecular configuration model. It was demonstrated that the properties of SMPU fibers can be tailored using these post treatments, thereby shape memory woven fabrics can be developed using SMPU fibers.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

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