Impact fatigue behaviour of vinylester resin matrix composites reinforced with alkali treated jute fibres |
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| Affiliation: | 1. Department of Material Science, Indian Association for the Cultivation of Science, 2A and B Raja S.C. Mallick Road, Jadavpur, Kolkata 700 032, India;2. Central Glass and Ceramic Research Institute, 196 Raja S.C. Mallick Road, Jadavpur, Kolkata, India;1. Acoustics Laboratory of Maine University (LAUM) UMR CNRS 6613, Maine University, Av. O. Messiaen, 72085 Le Mans cedex 9, France;2. Laboratory of Mechanics Modeling and Production (LA2MP), National School of Engineers of Sfax, University of Sfax, BP N° 1173, 3038 Sfax, Tunisia;1. Department of Mechanical Engineering, Sri Sairam Engineering College, West Tambaram, Chennai 600 044, India;2. Department of Mechanical Engineering, Vels University, Chennai 600 117, India;1. School of Chemistry and Chemical Engineering, Xi''an University of Science & Technology, Xi''an, 710054, People’s Republic of China;2. Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, University of Science and Technology, Harbin, 150080, People’s Republic of China;3. Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA;4. Poly K Technologies, State College, PA, 16803, USA;5. State Key Laboratory of Power System and Department of Electrical Engineering, Tsinghua University, Beijing, 100084, China |
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| Abstract: | An impact fatigue study has been made for the first time on 35% jute/vinylester composites containing both untreated and alkali treated fibres. Longer alkali treatment removed the hemicellulose and improved the crystallinity and gave better fibre dispersion. The flexural strength properties of the composites made from treated fibre were superior. 4 h alkali treated jute fibres gave the optimum combination of improved interfacial bonding and fibre strength properties. However this was not reflected in their impact fatigue behaviour. On the contrary, the composites reinforced with 8 h alkali treated fibres displayed superior impact fatigue properties. Here, the fibres suffered catastrophic fracture with microfibrillar pull-out at some places and improved the fatigue resistance property of the composites as evident from SEM micrographs. |
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