Stability and deterioration of a shape memory polymer fabric composite under thermomechanical stress

Ahmad, Manzoor, Singh, Dheeraj, Fu, Yong Qing, Miraftab, Mohsen and Luo, Jikui (2011) Stability and deterioration of a shape memory polymer fabric composite under thermomechanical stress. Polymer Degradation and Stability, 96 (8). pp. 1470-1477. ISSN 0141 3910

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Official URL: http://dx.doi.org/10.1016/j.polymdegradstab.2011.0...

Abstract

Fibres and fabrics are often used to reinforce shape memory polymers (SMPs) to improve their mechanical strength and properties, and such composites have been widely used in engineering. However incorporation of fibres and fabrics in SMPs is often accompanied with the deterioration of thermomechanical properties and shape memory effect. The thermomechanical properties and deterioration mechanisms of a shape memory polymer composite (SMPC) under repeated mechanical stress were investigated. Up to 100% extension, the SMPCs showed good shape memory effect with excellent shape recovery ratio, recovery stress and mechanical properties; while beyond that the recovery ratio and recovery stress of the composites deteriorated rapidly due to the significant delamination and debonding of fibres and fabrics from the SMP resin and accumulation of broken fibres.

Item Type: Article
Uncontrolled Keywords: Flexible composites; Polymer–matrix composites; Thermomechanical properties, stress/strain curves, delamination
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 23 Mar 2015 11:10
Last Modified: 15 Mar 2016 16:48
URI: http://nrl.northumbria.ac.uk/id/eprint/21678

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