Electrospun polyurethane nanofibres having shape memory effect

Haitao Zhuo; Jinlian Hu; Shaojun Chen

doi:10.1016/j.matlet.2007.11.018

Electrospun polyurethane nanofibres having shape memory effect

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Overview

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Author(s)

Haitao Zhuo
Jinlian Hu
Shaojun Chen

Detail(s)

Original language	English
Pages (from-to)	2074-2076
Journal / Publication	Materials Letters
Volume	62
Issue number	14
Online published	21 Nov 2007
Publication status	Published - 15 May 2008
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2007.11.018 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-40649098025&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(743a8969-faa3-47f9-8bda-08e6c24f5b26).html

Abstract

Nanofibres having shape memory effect (SME) were successfully spun from shape memory polyurethanes solution by electrospinning method in this experiment. Scanning electron microscopy (SEM) images showed that the resulted nanofibres had ultrafine diameter in a range of 50 to 700 nm. Uniform nanofibres could be prepared by adjusting applied voltage, concentration and feeding rate. Especially, the concentration played a key role in controlling its diameters. In addition, the differential scanning calorimetry (DSC) results indicated that the obtained nanofibres would satisfy the structure requirement of segmented polymer having SME. Finally, the cyclic tensile test gave a direct proof that the resulted nanofibres showed good SME: 98% shape recovery and 80% shape fixity can be obtained after several cyclic times. © 2007 Elsevier B.V. All rights reserved.