An electro-active shape memory fibre by incorporating multi-walled carbon nanotubes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Original languageEnglish
Pages (from-to)830-836
Journal / PublicationSmart Materials and Structures
Issue number3
Online published4 May 2007
Publication statusPublished - Jun 2007
Externally publishedYes


In this paper, an electro-active shape memory fibre was fabricated successively by incorporating multi-walled carbon nanotubes (MWNT). The shape memory polyurethane (SMP-MWNT) composite was prepared by in situ polymerization and the SMP-MWNT fibre was prepared by melt spinning. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations of the morphology revealed that the MWNTs are axially aligned and homogenously distributed in the SMP matrix, which is helpful for the fibre's electrical conductivity improvement and for the electro-active shape memory effect. At 6.0wt% MWNT content, the prepared shape memory fibre shape recovery ratio was 75% and the fixing ratio was 77%. © IOP Publishing Ltd.