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Synergistic effect of siloxane modified aluminum nanopowders and carbon fiber on electrothermal efficiency of polymeric shape memory nanocomposite
Affiliation:1. Science and Technology on Advanced Composites in Special Environments Laboratory, Harbin Institute of Technology, Harbin 150080, China;2. Composite Materials and Structures Laboratory, Department of Mechanical, Materials and Aerospace Engineering, University of Central Florida, Orlando, FL 32816, USA;3. Composite Material Research Laboratory, Department of Mechanical Engineering, University of New Orleans, LA 70148, USA;4. Department of Physics and Electrical Engineering, Faculty of Engineering and Environment, University of Northumbria at Newcastle, Newcastle upon Tyne NE1 8ST, UK;1. University of Niš, Faculty of Mechanical Engineering, Nis, Serbia;2. University of Priština in Kosovska Mitrovica, Faculty of Sciences and Mathematics, Kosovska Mitrovica, Serbia;3. University of Priština in Kosovska Mitrovica, Faculty of Technical Sciences, Kosovska Mitrovica, Serbia;4. University of Kragijevac, Faculty of Technical Sciences, Cacak, Serbia;5. ALFA BK University-Faculty of Mathematics and Computer Science in Belgrade, Serbia;6. Faculty of Hotel Management and Tourism Vrnjacka Banja, University of Kragujevac, Serbia;1. College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China;2. Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu, 314200, China;1. School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore;2. CNRS-International NTU Thales Research Alliance (CINTRA) UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Singapore, Singapore, 637553;3. Space Environment Department, Soreq NRC, 81800, Yavne, Israel;4. Temasek Laboratories@NTU, 50 Nanyang Avenue, Singapore, 639798, Singapore;1. Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, Qingdao University, Qingdao, Shandong 266071, PR China;2. State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, Shandong 266071, PR China;3. Research Center for Intelligent and Wearable Technology, Qingdao University, Qingdao, Shandong 266071, PR China
Abstract:The present study reports an effective approach of significantly enhancing electrothermal efficiency and shape recovery performance of shape memory polymer (SMP) nanocomposite, of which shape recovery was induced by electrically resistive heating. Metallic aluminum (Al) nanopowders synthesized from Al3+ solution were chemically grafted onto carbon fiber. Siloxane groups were grafted onto surfaces of the Al nanopowders to enhance the interfacial bonding between the carbon fiber and SMP matrix via van der Waals force and covalent bond, respectively. The siloxane modified Al surfaces could improve both the electrically induced shape recovery performance and electrothermal efficiency through facilitating the electrically resistive heating from carbon fiber into the SMP matrix. Effectiveness of the synergistic effect between siloxane modified Al surface and carbon fiber was demonstrated to achieve the electrical actuation for SMP nanocomposites at a low electrical voltage below 4.0 V.
Keywords:A. Smart materials  B. Electrical properties  B. Interface/interphase  E. Assembly
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