Thermally Activated Composite with Two-Way and Multi-Shape Memory Effects

Materials

Abdul Basit¹  Gildas L’Hostis¹  Marie José Pac¹ 

[1] Laboratory of Physics and Mechanics of Textiles de Physique (LPMT), High Alsace University (UHA), 11 rue Alfred Werner, Mulhouse F-68093, France; E-Mails:

关键词: shape memory composites;    functional composites;    laminate;    thermomechanical properties;   

DOI  :  10.3390/ma6094031

来源: mdpi

【 摘 要 】

The use of shape memory polymer composites is growing rapidly in smart structure applications. In this work, an active asymmetric composite called “controlled behavior composite material (CBCM)” is used as shape memory polymer composite. The programming and the corresponding initial fixity of the composite structure is obtained during a bending test, by heating CBCM above thermal glass transition temperature of the used Epoxy polymer. The shape memory properties of these composites are investigated by a bending test. Three types of recoveries are conducted, two classical recovery tests: unconstrained recovery and constrained recovery, and a new test of partial recovery under load. During recovery, high recovery displacement and force are produced that enables the composite to perform strong two-way actuations along with multi-shape memory effect. The recovery force confirms full recovery with two-way actuation even under a high load. This unique property of CBCM is characterized by the recovered mechanical work.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.