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Manufacture and Properties of Shape Memory Polyurethane Fibers  

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)
Publication Information
Textile Science and Engineering / v.47, no.2, 2010 , pp. 85-91 More about this Journal
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
shape memory fiber; melt spinning; post treatment; shape memory test;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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