Synthesis and failure behavior of super-aligned carbon nanotube film wrapped graphene fibers |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA;2. Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Ruoshui Road 398, Suzhou 215123, China;1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, 100190, China;2. Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, VA, 22904-4746, USA;3. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China;4. Department of Mechanical Engineering, University of California, Riverside, CA, 92521, USA;5. School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK;6. Key Laboratory of Nano-Devices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China;1. School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, PR China;2. Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA;3. Department of Chemical and Biomolecular Engineering, Center for Catalytic Science and Technology, University of Delaware, Newark, DE 19716, USA;4. Suzhou Institute of Nano-Tech and Nano-Bionics, Suzhou 215123, PR China;5. Composites Research Center, Korean Institute of Materials Science, Changwon 641831, South Korea;1. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;2. Department of Thermal Energy Engineering, College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China;3. World Premier International Research Center International Institute for Carbon-Neutral Energy Research, Kyushu University, Fukuoka 819-0395, Japan;4. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;5. Suzhou Institute of Nano-Tech and Nano-Bionics, Suzhou 215123, China;1. Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695, USA;2. Suzhou Institute of Nano-Science and Nano-Biotics, Chinese Academy of Sciences, Suzhou, Jiangsu, 215123, China;3. Department of Textile Engineering Chemistry and Science, North Carolina State University, Raleigh, NC, 27695, USA;1. Advanced Materials Division, and Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China;2. Innovation Center for Textile Science and Technology, and MOE Key Laboratory of Textile Science & Technology, Donghua University, Shanghai, 201620, China;3. Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China;4. Division of Nanomaterials, Suzhou Institute of Nano-Tech and Nano-Bionics, Nanchang, Chinese Academy of Sciences, Nanchang, 330200, China;5. CAS Key Laboratory of Materials Behavior and Design, and Department of Modern Mechanics, University of Science and Technology of China, Hefei, 230027, China |
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| Abstract: | Significant progress has been made in recent years in research on wet spinning and hydrothermal synthesis of graphene fibers. In this paper, we report the relationship between the mechanical performance of graphene oxide (GO) fibers and their processing parameters in wet spinning. With super-aligned carbon nanotube (CNT) film wrapping, the specific strength and electrical conductivity of reduced GO (rGO) fibers were simultaneously enhanced by 22% and 49%, respectively. Thicker CNT film wrapping of the rGO fiber induces a core–sheath structure; the resulting interfacial debonding and slippage under fiber axial loading were examined. The findings of this study provide guidelines for optimization of high-performance graphene/CNT hybrid fibers. |
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