Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17668
Title: Properties and mechanism of two-way shape memory polyurethane composites
Authors: Chen, S
Hu, J 
Zhuo, H
Keywords: A. Layered structures
A. Polymer
A. Smart materials
C. Laminate
Functional composites
Issue Date: 2010
Publisher: Pergamon Press
Source: Composites science and technology, 2010, v. 70, no. 10, p. 1437-1443 How to cite?
Journal: Composites science and technology 
Abstract: Recently, smart materials have drawn wide attention from many researchers. In this paper, laminated shape memory polymer composite (SMPC) exhibiting two-way shape memory effect (SME) has been prepared by combining the pre-elongated shape memory polyurethane (SMPU) with the un-elongated elastic polyurethane (PU). Then the shape memory behaviors, laminated structure and two-way SME mechanism are investigated systematically. The results show that two-way shape memory behaviors, i.e., bending upon heating and reverse bending upon cooling, are achieved in the resulted SMPU-based-SMPCs. In addition, the SMPCs show the compositive thermal properties and dynamic mechanical properties due to their physical combination of layer-by-layer. Furthermore, the shape memory mechanism can be ascribed to the reversible change of two forces, i.e., recovery force in the SMPU layer and bending force in the elastic PU layer.
URI: http://hdl.handle.net/10397/17668
ISSN: 0266-3538
EISSN: 1879-1050
DOI: 10.1016/j.compscitech.2010.01.017
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