Free-standing functional graphene reinforced carbon films with excellent mechanical properties and superhydrophobic characteristic |
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| Affiliation: | 1. Key Laboratory for Thin Film and Microfabrication Technology of the Ministry of Education, School of Electronics, Information and Electrical Engineering, Shanghai Jiao Tong University, Dong Chuan Road No. 800, Shanghai 200240, PR China;2. School of Materials Science & Engineering, Nanyang Technological University, 50 Nanyang Avenue Block, 639798, Singapore;1. University of Ioannina, Dept. of Materials Science and Engineering, Ioannina GR-45110, Greece;2. Laboratoire MATEIS, INSA Lyon, 7 Avenue Jean Capelle, 69621 Villeurbanne Cedex, France;1. College of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China;2. College of Civil Engineering, Guangzhou University, Guangzhou 510006, China;3. Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong;4. Department of Fiber Science and Apparel Design, Cornell University, Ithaca, NY, USA;5. Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong;1. Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering (State Key Laboratory of Ocean Engineering, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration), Shanghai Jiao Tong University, Shanghai 200240, China;2. School of Engineering, Brown University, Providence 02912, USA;1. School of Materials Science and Engineering, University of Science and Technology Beijing, 100083 Beijing, People’s Republic of China;2. Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, 100083 Beijing, People’s Republic of China;3. School of Engineering, Tohoku University, 9808579 Sendai, Japan;1. Department of Chemical Engineering, West Virginia University, WV 26506, United States;2. Department of Basic Pharmaceutical Sciences, West Virginia University, WV 26505, United States |
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| Abstract: | In this work, we reported a simple method to fabricate novel free-standing stiff carbon-based composite films with excellent mechanical properties and superhydrophobic behaviors. The free-standing stiff carbon composite films based on reduced graphene oxide/glassy carbon (rGO/GC) were prepared by the combination of in-situ polymerization and carbonization process. The obtained composite films exhibited excellent mechanical properties by the addition of rGO nanosheets. It was found that incorporating 0.5 wt.% of rGO sheets in GC precursors resulted in enhancements of 99% in strength (202.6 MPa) and 184% in modulus (33.8 GPa), respectively. More interestingly, carbon nanoarrays were uniformly grown on the surface of composite films by the incorporation of rGO sheets. Superhydrophobic surfaces of carbon films were subsequently formed through functionalizing carbon nanoarrays with Trichloro(1H, 1H, 2H, 2H-perfluorodecyl)silane. Contact angle (CA) analysis suggested that superhydrophobic surfaces with a CA as high as 155° could be formed through optimizing the fabrication process. |
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| Keywords: | A Carbon–carbon composites (CCCs) B Mechanical properties B Surface properties B Microstructures |
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