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Impact resistance of hybrid glass fiber reinforced epoxy/nanoclay composite
Institution:1. Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia;2. Department of Mechanical Engineering, École Polytechnique, P.O. Box 6079, Station Centre Ville, Montréal, Qc, H3C 3A7, Canada;1. Department of Power Mechanical Engineering, National Formosa University, Yunlin 632, Taiwan;2. Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University, Keelung, Taiwan;3. Electronics and Optoelectronics Research Laboratories (EORL), Industrial Technology Research Institute (ITRI), Taiwan;1. College of Instrumentation Science & Electrical Engineering, Jilin University, Changchun, Jilin, 130061, China;2. Beihua University, Jilin, Jilin, 130022, China;3. Research Center for THz Technology, Key Laboratory of Multi-scale Manufacturing Technology, Chongqing, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China;4. Jilin Chemical Group Company Logistics Center, Jilin, Jilin, 130022, China;1. Polymer Science and Technology Program, Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Phuttamonthon 4 Road, Salaya, Phuttamonthon District, Nakhon Pathom 73170, Thailand;2. Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Phuttamonthon 4 Road, Salaya, Phuttamonthon District, Nakhon Pathom 73170, Thailand;3. Center of Sustainable Energy and Green Materials, Faculty of Science, Mahidol University, Phuttamonthon 4 Road, Salaya, Phuttamonthon District, Nakhon Pathom 73170, Thailand
Abstract:The effect of nanoclay addition in Glass Fiber Reinforced Epoxy (GFRE) composites on impact response was studied. The epoxy nanocomposite matrix with 1.5 and 3.0 wt% loading of I.30E nanoclay was produced by high shear mixing. Hybrid GFRE nanoclay composite plates were manufactured by hand layup and hot pressing techniques using electrical grade-corrosion resistant (E-CR) glass fiber mats. The laminates were then subjected to low-velocity impact with energies between 10 and 50 J. Addition of nanoclay was found to improve peak load and stiffness of GFRE. Nanoclay loading of 1.5 wt% resulted in optimum properties, with 23% improvement in peak load and 11% increase in stiffness. A significant reduction in physical damage was also observed for hybrid nanocomposite samples as compared to GFRE. This was mainly attributed to transition in damage mechanism due to nanoclay addition. Clay agglomeration in samples with 3.0 wt% loading contributed towards limiting the improvement in impact resistance.
Keywords:Impact testing  Nanocomposites  Hybrid composites  Epoxy  Nanoclay  GFR
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