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Feasibility study of polyurethane shape-memory polymer actuators for pressure bandage application

Author(s): Manzoor Ahmad, Jikui Luo and Mohsen Miraftab

Journal: Science and Technology of Advanced Materials
ISSN 1468-6996

Volume: 13;
Issue: 1;
Start page: 015006;
Date: 2012;
Original page

The feasibility of laboratory-synthesized polyurethane-based shape-memory polymer (SMPU) actuators has been investigated for possible application in medical pressure bandages where gradient pressure is required between the ankle and the knee for treatment of leg ulcers. In this study, using heat as the stimulant, SMPU strip actuators have been subjected to gradual and cyclic stresses; their recovery force, reproducibility and reusability have been monitored with respect to changes in temperature and circumference of a model leg, and the stress relaxation at various temperatures has been investigated. The findings suggest that SMPU actuators can be used for the development of the next generation of pressure bandages.
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