The reinforcement role of carbon nanotubes in epoxy composites with different matrix stiffness |
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| Affiliation: | 1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. School of Information Science and Technology, Shanghai Ocean University, Shanghai 201306, China;1. Department of Mechanical Engineering, Kyung Hee University, Yongin, Republic of Korea;2. Department of Chemistry, Inha University, Incheon, Republic of Korea;3. Korean Agency for Technology and Standards, Gwacheon, Republic of Korea;1. Dept. of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, Houghton, MI, 49931, USA;2. National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), 114 Thailand Science Park, Thanon Pahonyothin, Tambon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani, 12120, Thailand;3. Dept. of Physics, Michigan Technological University, Houghton, MI, 49931, USA;1. Department of Rubber Technology and Polymer Science, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, 94000, Thailand;2. University of Lyon, Université Claude Bernard Lyon1, Ingénierie des Matériaux Polymères (IMP), UMR CNRS 5223, 15 Bd A. Latarjet, 69622, Villeurbanne, France;3. Leibniz-Institut Für Polymerforschung Dresden e.V, Hohe Strasse 6, D-01069, Dresden, Germany;4. Technische Universität Dresden, Institut für Werkstoffwissenschaft, Helmholtzstraße 7, 01062, Dresden, Germany;5. Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, 84000, Thailand;1. Department of Civil and Environmental Engineering, University of South Carolina, USA;2. Department of Mechanical Engineering, University of South Carolina, USA;3. McNair Center for Aerospace Innovation and Research, University of South Carolina, USA |
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| Abstract: | This paper systemically evaluates the different reinforcement roles of carbon nanotubes in those nanocomposites with different matrix stiffness while the curing process is controlled. Both mechanical test and microscope observation indicated that such reinforcement would gradually reduce while increasing the stiffness of matrix. However in the soft and ductile composites, carbon nanotubes show a significant reinforcement without fracture strain decreasing. The interface interaction is poor between carbon nanotubes and matrix in the stiff composite, and therefore, they have little contribution to the mechanical properties of composite. This research may help to propose a further positive solution for designing and fabricating carbon nanotube–epoxy nanocomposites. |
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