Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Carbon Nanotube-Polyurethane Nanocomposites Having Characteristics of Electroactive Shape Recovery

전기응답 형상회복 특성을 갖는 탄소나노튜브-폴리우레탄 나노복합체

  • Kim, Jeong-Won (Department of Textile Engineering and Next-Generation Innovative Technology Research Institute, Konkuk University) ;
  • Jung, Yong-Chae (Department of Textile Engineering and Next-Generation Innovative Technology Research Institute, Konkuk University) ;
  • Cho, Jae-Whan (Department of Textile Engineering and Next-Generation Innovative Technology Research Institute, Konkuk University)
  • 김정원 (건국대학교 섬유공학과 및 차세대혁신기술연구원) ;
  • 정용채 (건국대학교 섬유공학과 및 차세대혁신기술연구원) ;
  • 조재환 (건국대학교 섬유공학과 및 차세대혁신기술연구원)
  • Published : 2005.08.01
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Abstract

Multi-walled carbon nanotube(MWNT)-polyurethane block copolymer(PU) nanocomposites were prepared, and their electroactive shape recovery characteristics were investigated. The nanocomposites incorporating chemically modified MWNTs showed higher modulus and breaking stress than those incorporating raw MWNTs, which was ascribed to an increased dispersion of nanotubes in the matrix polymer and increased interfacial strength between nanotubes and polyurethane molecules. However, their electrical conductivity decreased with the degree of chemical modification of MWNTs. The best properties were obtained in the composites incorporating MWNTs modified at $90^{\circ}C$ on basis of combined evaluation of mechanical and conducting properties. Good electroactive shape recovery within 10 seconds was obtained when a voltage of 10 to 30 V was applied to the composites of $3-7wt\%$ modified MWNT content.

Keywords

References

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