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Influence of functionalized carbon nanofibers on the single carbon fiber–epoxy matrix interface
Affiliation:1. Sir Lawrence Wackett Aerospace Research Centre, School of Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia;2. School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia;3. Department of Mechanical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK;1. School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW 2052, Australia;2. Sir Lawrence Wackett Aerospace Research Centre, School of Engineering, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia;3. Australian Future Fibres Research and Innovation Centre, Institute for Frontier Materials, Deakin University, VIC 3220, Australia;4. Department of Mechanical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK;1. Department of Mechanical Engineering, Hanyang University, 222 Wasngsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea;2. R&D Center, Lotte Chemical, 115 Gajeongbuk-ro, Yuseong-gu, Daejeon, Republic of Korea;3. Institute of Nano Science and Technology, Hanyang University, Seoul, 04763, Republic of Korea;1. Composite Materials Group, Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela 769008, India;2. School of Mechanical Engineering, KIIT University, Bhubaneswar 751024, India;1. Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129, Torino, Italy;2. National Interuniversity Consortium of Materials Science and Technology (INSTM), Florence, Italy;3. Massachusetts Institute of Technology, 77 Massachusetts Ave, 02139, Cambridge, MA, USA;4. Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129, Torino, Italy
Abstract:Amine-functionalized carbon nanofibers (A-CNFs) were deposited on the surface of individual sized carbon fibers using electrophoretic deposition (EPD), and the average interfacial shear strength (IFSS) was determined using the single fiber fragmentation test in conjunction with Weibull analysis. The IFSS decreased by 25% for fibers acting as the negative electrode in water without CNFs, and the impact of agglomerates on IFSS estimation is discussed. Further, a 187% IFSS increase was achieved for fibers undergoing a two-stage A-CNF EPD approach.
Keywords:Electrophoretic deposition  A  Carbon fiber  A  Nano-structures  B  Interface/interphase  B  Stress transfer
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