Self-organizing alignment of carbon nanotube in shape memory segmented fiber prepared by in situ polymerization and melt spinning

Qinghao Meng, Jinlian Hu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

59 Citations (Scopus)

Abstract

Shape memory polyurethane-multi-walled carbon nanotube (SMP-MWNT) fibers with different MWNT contents were prepared using in situ polymerization and melt spinning. It was found that in the shape memory polyurethane matrix, the MWNTs were preferentially aligned in the fiber axial direction. The effect of aligned MWNTs on the shape memory behavior of shape memory fibers was investigated. The shape recovery ratio and recovery force were prominently improved by the aligned MWNTs. The results suggest that the aligned MWNTs could help storing and releasing the internal elastic energy during stretching and relaxation. Besides, it was found that the self-aligned MWNTs shape memory fibers recovered the original length more quickly. This provides the possibility of fabricating smart instruments with higher sensitivity.
Original languageEnglish
Pages (from-to)314-321
Number of pages8
JournalComposites Part A: Applied Science and Manufacturing
Volume39
Issue number2
DOIs
Publication statusPublished - 1 Feb 2008

Keywords

  • A. Polymer-matrix composites (PMCs)
  • A. Smart materials
  • E. Melt-spinning

ASJC Scopus subject areas

  • Ceramics and Composites

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