‘Two way’ shape memory composites based on electroactive polymer and thermoplastic membrane |
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| Affiliation: | 1. Science and Technology on Advanced Composites in Special Environments Laboratory, Harbin Institute of Technology, Harbin 150080, China;2. Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), Harbin 150080, China;1. Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China;2. PolyU Shenzhen Base, Nanshan District, Shenzhen, China;1. Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China;2. Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, 117574 Singapore, Singapore;3. Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 117602 Singapore, Singapore;1. State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027 PR China;2. The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA 30332, USA;1. Centre for Composite Materials and Structures, Harbin Institute of Technology (HIT), No. 2 YiKuang Street, PO Box 3011, Harbin 150080, People’s Republic of China;2. Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), No. 92 West Dazhi Street, PO Box 301, Harbin 150001, People’s Republic of China;1. Department of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USA;2. Department of Polymer Science and Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;3. Beijing National Laboratory for Molecular Sciences, Joint Laboratory of Polymer Science and Materials, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China |
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| Abstract: | A practical and facile strategy was proposed to fabricate composites that not only use the properties of individual components (commercial electroactive polymer and thermoplastic resin) to their advantage, but also produce synergy effect of ‘two way’ shape memory properties. In this design, electroactive polymer is treated as soft segment which provides actuation force via converting electrical energy to dynamic energy. Thermoplastic material serves as ‘hard segment’ to help with fixation of temporary shape thanks to its re-structuring and stiffness/modulus changing abilities through the reversible transitional temperature. Compared with traditional one way and two way shape memory materials, this composite material has the capability of changing shape without pre-programming. High shape recover property (99 ± 0.3%.) has been obtained due to the rubber elasticity of electroactive polymer matrix. Many features could be brought up based on this design, such as accurate control over deformation by changing strength of applied electric field as well as tailorable stimulus temperature and mechanical properties. |
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| Keywords: | Hybrid composites Smart materials Synergism Electrospinning |
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