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Shape Recovery Characteristics of Shape Memory Polymers Subjected to Bending

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Abstract:

Shape recovery is a critical characterization of the Shape Memory Polymers (SMP); so far, there has not been a set of uniform specifications, however, on the deformation recovery characterization of SMP, more exactly, on the shape recovery ratio measurement. A simple and effective experimental method is designed to obtain the shape recovery ratio of SMP; and a series of experiments are carried out to measure the shape recovery ratio of a thermoset shape-memory epoxy resin within the finite bending deformation at various test temperatures. And the results show that the shape recovery ratio and rate of the thin sample are larger than that of the thick one; the deformation curvature has little effect on the shape recovery ratio with the test temperatures over, or below, the glass-transition temperature, Tg, but has significant effect near Tg. The conclusions provide an important basis for the structural design of SMP.

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Info:

Periodical:

Advanced Materials Research (Volumes 834-836)

Pages:

160-164

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.834-836.160

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Cite this paper

Online since:

October 2013

Authors:

Tao Zhou, Hui Feng Tan*, Yu Yan Liu

Keywords:

Glass Transition Temperature, Recovery Rate, Shape Memory Effects (SME), Shape Memory Polymer

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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