Viscoelastic response and interlaminar delamination resistance of epoxy/glass fiber/functionalized graphene oxide multi-scale composites |
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| Affiliation: | 1. Faculty of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran;2. Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535111, Tehran, Iran;1. Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310012, China;2. Centre for Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronic Engineering J07, The University of Sydney, Sydney, NSW 2006, Australia;1. Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong;2. Centre for Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronic Engineering J07, The University of Sydney, Sydney, NSW 2006, Australia;3. School of Materials Science and Engineering, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, PR China;1. U.S. Army Engineer Research and Development Center – Construction Engineering Research Laboratory (ERDC-CERL), Champaign, IL 61821, USA;2. Composite Structures and Nano-Engineering Research, Department of Mechanical Engineering, University of Mississippi, University, MS 38677, USA;1. Department of Mechanical Engineering, Thapar University, Patiala 147004, India;2. Department of Civil Engineering, Thapar University, Patiala 147004, India;3. Department of Chemical Engineering, Thapar University, Patiala 147004, India;1. Faculty of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran;2. Department of Plastics, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran;3. Faculty of Mechanical Engineering, Malek Ashtar University of Technology, Tehran, Iran;4. Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535111, Tehran, Iran |
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| Abstract: | Graphene oxide (GO) was functionalized using three different diamines, namely ethylenediamine (EDA), 4,4′-diaminodiphenyl sulfone (DDS) and p-phenylenediamine (PPD) to reinforce an epoxy/glass fiber (EP/GF) composite laminate, with the aim of improving the overall composite mechanical performance. Different mechanical characterization techniques were used to determine the mechanical performance, including: tensile stress strain, double cantilever beam (DCB) mode-I fracture toughness and dynamic mechanical thermal analysis (DMTA). Scanning electron microscopy (SEM) was used to support the results and conclusions. The results demonstrated remarkable enhancements in the mechanical performance of EP/GF composite laminates by incorporation of functionalized graphene oxide (FGO) nanofiller, whilst the mechanical performance of the GO reinforced composite only improved marginally. Finally, the mechanical performance of the EP/GF/FGO multi-scale composites was found to be dependent on the type of FGO functional groups; of which EDA exhibited the highest performance. These investigations confirmed that the EDA-FGO-reinforced EP/GF composites possess excellent potential to be used as multifunctional engineering materials in industrial applications. |
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| Keywords: | Multi-scale composite Fracture toughness Viscoelasticity Functionalized graphene oxide |
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