Adhesive bonding of carbon fiber reinforced composite using UV-curing epoxy resin |
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| Affiliation: | 1. Department of Civil, Structural, and Environmental Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA;2. Material Science and Technology Division, Physical Sciences Directorate, Oak Ridge National Lab, Oak Ridge, TN 37831, USA;3. Department of Mechanical and Aerospace Engineering, University at Buffalo, State University of New York, Buffalo, NY 14260, USA;1. Dipartimento di Ingegneria dell’Impresa, Università degli Studi di Roma Tor Vergata, Via del Politecnico, 1, 00133 Roma, Italy;2. Dipartimento di Ingegneria Meccanica ed Aerospaziale, “Sapienza” Università degli Studi di Roma, Via Eudossiana, 18, 00184 Roma, Italy;1. R&D Division, Korea Institute of Carbon Convergence Technology, Jeonju 54853, Republic of Korea;2. Department of Organic Materials & Fiber Engineering, Chonbuk National University, Jeonju 54896, Republic of Korea;3. Department of Advanced Nano Materials, Jeonju University, Jeonju 22212, Republic of Korea;4. Department of Chemistry, Inha University, Incheon 55069, Republic of Korea;5. Department of Mechanical Engineering, Kyung Hee University, Yongin 17104, Republic of Korea;1. Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, C.so Duca degli Abruzzi 24, I-10129, Torino, Italy;2. Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9, A-1040, Vienna, Austria |
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| Abstract: | Carbon fiber reinforced materials are widely used in a variety of products due to their stiffness, high strength and light weight. However, the strength of fiber reinforced composites will dramatically decrease when they have suffered damage from impact. Therefore, repair is necessary to maintain integrity. In many cases, speed of this repair is paramount. In this work, UV resins adhered to a damaged panel to form a hard patch are considered for fast repair. The challenge in using UV curing resins on carbon fiber reinforced materials is the non-UV transparency of the composite. In this work, a cationic UV epoxy resin is used due to its characteristic of dark polymerization after UV exposure. ASTM lap shear testing showed the shear stress was above 1000 psi. However, the large scale testing failed due to partial curing of adhesive before repair indicating that control in dosing and resin delivery is critical, yet problematic. |
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| Keywords: | A. Carbon fiber A. Resins B. Adhesion Repair |
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