화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.13, No.5, 441-445, October, 2005
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Stress-Strain Behavior of the Electrospun Thermoplastic Polyurethane Elastomer Fiber Mats
Keunhyung Lee1, 2, Bongseok Lee3, Chihun Kim3, Hakyong Kim3, †, Kwanwoo Kim4, and Changwoon Nah5
  • 1Department of Advanced Materials Engineering, Chonbuk National University, Jeonbuk 561-756, Korea
  • 2Department of Materials Science and Engineering, University of Delaware, Newark, Delaware, 19716, Korea
  • 3Department of Textile Engineering, Chonbuk National University, Jeonbuk 561-756, Korea
  • 4Department of Bionano System Engineering, Chonbuk National University, Jeonbuk 561-756, Korea
  • 5Department of Polymer Nano Science and Technology, Chonbuk National University, Jeonbuk 561-756, Korea
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Thermoplastic polyurethane elastomer (TPUe) fiber mats were successfully fabricated by electrospinning method. The TPUe fiber mats were subjected to a series of cycling tensile tests to determine the mechanical behavior. The electrospun TPUe fiber mats showed non-linear elastic and inelastic characteristics which may be due to slippage of crossed fiber (non-bonded or physical bonded structure) and breakage of the electrospun fibers at junctions (point-bonded or chemical bonding structure). The scanning electron microscopy (SEM) images demonstrated that the point-bonded structures of fiber mats played an important role in the load-bearing component as determined in loading-unloading component tests, which can be considered to have a force of restitution.
Keywords:thermoplastic polyurethane elastomer (TPUe);electrospinning;mechanical behavior;morphology
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