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Fabrication and Analysis of Porous Shape Memory Polymer and Nanocomposites

Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada

^* To whom correspondence should be addressed.

	Abstract

The porous structure and shape memory effect (SME) were studied for a porous shape memory polymer (SMP) with varying densities, two different thicknesses and the addition of varying weight percentages of organoclay. In order to alter the density of the SMP, a batch processing technique was utilized in which the saturation pressure and foaming time were varied and saturation time and foaming temperature were kept constant. The change in density as the effect of reducing the thickness of the SMP on the time response of the SME was investigated. In addition, the effects of the change in density, change in thickness or the addition of organoclay on the recovery force of the SMP were elucidated. With the objective of designing an SMP to be used as an actuator, response time, recovery force and weight savings are critical parameters.

Key Words: Shape memory polymer, nanocomposite

First published on January 21, 2009
High Performance Polymers 2009, doi:10.1177/0954008308101051


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