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Thermomechanical Behavior of a Polyurethane Shape Memory Polymer Foam

School of Mechanical and Aerospace Engineering, Nanyang Technological University Nanyang Avenue, Singapore 639798, mwmhuang{at}ntu.edu.sg

C. W. Lee

School of Mechanical and Aerospace Engineering, Nanyang Technological University Nanyang Avenue, Singapore 639798

H. P. Teo

School of Mechanical and Aerospace Engineering, Nanyang Technological University Nanyang Avenue, Singapore 639798

Shape memory polymers (SMPs) have attracted great interest in recent years. The SMP foams are outstanding, owing to their high shape recovery ratio in compression. They can be used for, for instance, micro foldable vehicles, shape determination, and microtags. This article presents a study on the thermomechanical behavior of a polyurethane SMP foam, associated with these three applications. This includes four types of tests namely, compression test, free recovery test, constrained cooling test, and gripping test.

Key Words: shape memory polymer • foam • thermomechanical behavior • recovery

This version was published on September 1, 2006

Journal of Intelligent Material Systems and Structures, Vol. 17, No. 8-9, 753-760 (2006)
DOI: 10.1177/1045389X06055768


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