Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12378
Title: Functional shape memory composite nanofibers with graphene oxide filler
Authors: Tan, L
Gan, L
Hu, J 
Zhu, Y
Han, J
Keywords: A. Polymer-matrix composites (PMCs)
B. Mechanical properties
C. Electrospinning
D. Shape memory nanofibers
Issue Date: 2015
Publisher: Elsevier
Source: Composites. Part A, Applied science and manufacturing, 2015, v. 76, p. 115-123 How to cite?
Journal: Composites. Part A, Applied science and manufacturing 
Abstract: In the present study, we prepared a series of graphene oxide (GO) filled shape memory polyurethane (SMPU) nanofibers and systematically investigated the morphological, thermal and mechanical properties, surface wettability, and the shape memory effect (SME) followed by the proposed programming model. The results show that GO can be well dispersed within the SMPU matrix, and the introduction of GO significantly improves the mechanical strength, surface wettability, and thermal stability of the SMPU. Compared with pristine SMPU nanofibrous mats, the prepared SMPU/GO nanofibrous mats have better SME and lower thermal shrinkage. When the loading amount of GO increased to 4.0 wt%, the thermal shrinkage ratio (R<inf>ts</inf>) of composite nanofibrous mats could be as low as 4.7 ± 0.3%, while the average fixation ratio (R<inf>f</inf>) and recovery ratio (Rr) could be as high as 92.1% and 96.5%, respectively. The study indicates that GO is a desirable reinforcing filler for preparing shape memory nanofibers with improved properties.
URI: http://hdl.handle.net/10397/12378
ISSN: 1359-835X
DOI: 10.1016/j.compositesa.2015.04.015
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