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http://dx.doi.org/10.7234/composres.2018.31.5.186

Interfacial and Mechanical Properties of Glass Fiber Reinforced Epoxy Composites with Different Crosslinking Density after Saline Water Aging  

Shin, Pyeong-Su (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Research Institute for Green Energy Convergence Technology,Gyeongsang National University)
Kim, Jong-Hyun (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Research Institute for Green Energy Convergence Technology,Gyeongsang National University)
Baek, Yeong-Min (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Research Institute for Green Energy Convergence Technology,Gyeongsang National University)
Park, Ha-Seung (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Research Institute for Green Energy Convergence Technology,Gyeongsang National University)
Kwon, Dong-Jun (Department of Materials Engineering and Convergence Technology, Center for Creative Human Resource & Convergence Materials, Research Institute for Green Energy Convergence Technology,Gyeongsang National University)
Park, Joung-Man (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Gyeongsang National University)
Publication Information
Composites Research / v.31, no.5, 2018 , pp. 186-191 More about this Journal
Abstract
Condition and properties of composites with different chemical structure of epoxy matrix were observed after saline solution treatment. Epoxy was used as matrix and the flexibility was controlled by using 2 typed-epoxies and 3 types hardeners (amine, acid anhydride and amide). Saline water treatment was conducted with 6 wt% NaCl solution at $60^{\circ}C$ for 0, 15, and 30 days. Cross section was observed and interfacial and mechanical and properties was evaluated. Amine type exhibited the highest crosslinking density and mechanical and interfacial properties whereas water absorbance was lowest. It is because that the water molecules can be hardly penetrate into the epoxy matrix or the interface between epoxy and glass fiber and it leads to saline water resistance of composites.
Keywords
Interface; Saline water resistance; Glass fiber; Epoxy; Composites;
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