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Improvement of carbon fiber surface properties using electron beam irradiation
Authors:Eddy Segura PINO  Luci Diva Brocardo MACHADO  Claudia GIOVEDI
Affiliation:1. Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP, Av. Prof. Lineu Prestes, 2242, Cidade Universitária, 05508-000. São Paulo, SP - Brazil;2. Centro Tecnológico da Marinha em São Paulo, Av. Prof. Lineu Prestes, 2468, Cidade Universitária, 05508-000, São Paulo, SP-Brazil;1. School for Engineering of Matter, Transport and Energy, Arizona State University, Mail Stop 6106, Tempe, AZ 85287-6106, United States;2. Mechanical and Aerospace Engineering, University of Florida, PO Box 116250, Gainesville, FL 32611-6250, United States;3. Materials Science and Engineering, University of Florida, PO Box 116400, Gainesville, FL 32611-6400, United States;1. Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China;2. Liaoning Key Laboratory of Advanced Polymer Matrix Composites Manufacturing Technology, Shenyang Aerospace University, Shenyang 110136, China;1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China;2. College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China;1. College of Science, Civil Aviation University of China, Tianjin 300300, China;2. College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China;1. Institute of Technical Physics and Materials Science, Centre for Natural Sciences, PO Box 49, H-1525 Budapest, Hungary;2. Department of Physics of Matter and Radiation, University of Namur, 61, Rue de Bruxelles, B-5000 Namur, Belgium;3. Center for Nano-characterization, Division of Industrial Metrology, Korea Research Institute of Standards and Science, Yuseong, Daejeon 305-340, Republic of Korea;4. Korean-Hungarian Joint Laboratory for Nanosciences, PO Box 49, H-1525 Budapest, Hungary
Abstract:Carbon fiber-reinforced advance composites have been used for struetural applications, mainly on account of their mechanical properties. The main factor for a good mechanical performance of carbon fiber-reinforced composite is the interfacial interaction between its components, which are carbon fiber and polymeric matrix. The aim of this study is to improve the surface properties of the carbon fiber using ionizing radiation from an electron beam to obtain better adhesion properties in the resultant composite. EB radiation was applied on the carbon fiber itself before preparing test specimens for the mechanical tests. Experimental results showed that EB irradiation improved the tensile strength of carbon fiber samples. The maximum value in tensile strength was reached using doses of about 250kGy. After breakage, the morphology aspect of the tensile specimens prepared with irradiated and non-irradiated carbon fibers were evaluated. SEM micrographs showed modifications on the carbon fiber surface.
Keywords:EB irradiation  Carbon fiber  Composites  Tensile strength  SEM  electron beam irradiation  surface properties  carbon fibers  morphology  aspect  tensile strength  maximum  value  Experimental  results  improved  test  mechanical performance  study  ionizing radiation  better  adhesion  resultant  polymeric  matrix
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