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Tensile mechanical properties and surface chemical sensitivity of technical fibres from date palm fruit branches (Phoenix dactylifera L.)
Affiliation:1. Laboratoire de Mécanique Appliquée des Nouveaux Matériaux (LMANM), Université 8 Mai 1945, Guelma, Algeria;2. Université de M’sila, B.P 166 ICHBELIA, M′sila 28000, Algeria;3. Advanced Composites Centre for Innovation and Science (ACCIS), University of Bristol, BS8 1TR Bristol, UK;4. Bristol Centre for Nanoscience and Quantum Information (NSQI), University of Bristol, BS8 1FD Bristol, UK;5. Laboratoirede Mécanique de Lille, Université Lille1, CitéScientifique, Avenue Paul Langevin, 59655 Villeneuve d’AscqCedex, France;1. Centre for Advanced Materials, Qatar University, Doha, Qatar;2. Materials Science and Technology Program, Qatar University, Doha, Qatar;1. Laboratoire de Mécanique Appliquée des Nouveaux Matériaux (LMANM), Université 8 Mai 1945 Guelma, B.P.401, Guelma 24000, Algeria;2. Université des frères Mentouri, Constantine, Département de Génie Mécanique, route de Ain El Bey, Constantine 25000, Algeria;3. Department of Aerospace Engineering, University of Bristol, Queens Building, University Walk, BS8 1TR Bristol, UK;4. Université de Tizi-Ouzou, Algeria;1. Laboratoire de Mécanique Appliquée des Nouveaux Matériaux (LMANM), Université 8 Mai 1945, Guelma, Algeria;2. Aeronautical Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia;3. Advanced Composites Centre for Innovation and Science, University of Bristol, BS8 1TR Bristol, UK;4. Bristol Centre for Nanoscience and Quantum Information (NSQI), University of Bristol, BS8 1QU Bristol, UK;1. Advanced Materials and Manufacturing (AMM) Research Group, School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth, Hampshire, PO1 3DJ, United Kingdom;2. Université de Bretagne Sud, IRDL, UMR CNRS 6027, Lorient, France;3. Centre for Natural Material Innovation, Dept. of Architecture, University of Cambridge, Cambridge, CB2 1PX, United Kingdom;4. Fractionnement des Agro Ressources et Environnement (FARE), URCA INRA, 2 esplanade Roland Garros, F-51100, Reims, France;5. Biopolymères Interactions Assemblages (BIA), INRA, rue de la Géraudière, F-44316, Nantes, France;1. Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM 43400, Serdang, Selangor, Malaysia;2. Applied Medical Science Department, CC, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia;3. Biomedical Engineering Dept., Faculty of Engineering, Helwan University, Egypt;4. Department of Chemical Engineering, College of Engineering, King Saud University, PO Box 22452, Riyadh 11451, Saudi Arabia
Abstract:The paper describes the manufacturing process and the characterization of the tensile mechanical properties of treated and untreated palm dates long technical fibres. The fibres extracted from Fruit Bunch Branch of Palm Date (FBBPD) have been subjected to alkaline treatment with different NaOH concentrations at room temperature. The experimental results show that the chemical technical fibre treatments provide an increase of the mechanical properties (tensile strength and Young’s modulus) under quasi-static tensile loading. A specific treatment leads a threefold increase of the failure stress. An analysis of stress at failure has been performed over a population of 630 samples using Weibull statistics with two and three-parameters, together with a one-way analysis of variance (ANOVA). FBBPD technical fibres show stiffness and strength performance comparable to the ones of agave Americana L fibres, and higher failure at strength than okra fibres.
Keywords:A  Wood  B  Mechanical properties  C  Statistical properties/methods  D  Optical microscopy
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