Determination of interfacial shear strength of white rot fungi treated hemp fibre reinforced polypropylene |
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| Authors: | Yan Li K.L. Pickering R.L. Farrell |
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| Affiliation: | 1. Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le V. Tecchio, 80, 80125 Naples, Italy;2. Department of Industrial and Information Engineering, Università della Campania “Luigi Vanvitelli”, Via Roma, 29, 81031 Aversa, Italy;1. Institute of Polymer Mechanics, University of Latvia, Aizkraukles st. 23, Rīga, Latvia;2. Ventspils University College, In?enieru str. 101, Ventspils, Latvia;3. Composite Centre Sweden, Luleå University of Technology, SE-971 87 Luleå, Sweden;4. Swerea SICOMP, P.O. Box 271, S-94126 Piteå, Sweden;5. Department of Wind Energy, Technical University of Denmark, Risø Campus, Roskilde, Denmark;6. Bemis Flexible Packaging Europe, Bemis Valkeakoski Oy, Teollisuustie 1, 37601 Valkeakoski, Finland;1. Bioengineering and Drug Design Lab, Department of Biotechnology, Indian Institute of Technology Madras, Chennai, Tamilnadu 600036, India;2. Centre of Excellence In Envriromental Studies, King Abdulaziz University, Jeddah-21589, Saudi Arabia;1. Faculty of Science, Engineering and Technology, Swinburne University of Technology. Hawthorn, Melbourne, VIC 3122, Australia;2. Department of Creative Product Design, College of Creative Design, Asia University, Taichung, Taiwan;3. School of Materials Science and Engineering, Southwest Jiaotong University, China;4. Department of Mechanical Engineering, University of New Orleans, New Orleans, LA 70148, USA;1. Group LEPAMAP, Department of Chemical Engineering, University of Girona, C/M. Aurèlia Capmany, n° 61, Girona 17071, Spain;2. Design, Development and Product Innovation, Dpt. of Organization, Business Management and Product Design, University of Girona, C/M. Aurèlia Capmany, n° 61, Girona 17071, Spain |
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| Abstract: | Short untreated and white rot fungi treated hemp fibre, polypropylene (PP) and maleated polypropylene (MAPP) coupling agent were extruded and injection moulded into composite tensile test specimens. The tensile properties of untreated and treated fibre and their composites were measured. The fibre length distributions in the composite were obtained by dissolving the PP/MAPP matrix in boiling xylene to extract the fibre. Both the Single Fibre Pull-Out test and the Bowyer and Bader model were used to determine the interfacial shear strength (IFSS) of these composites. IFSS was found to be lower for the Single Fibre Pull-Out test, which was considered to be largely due to axial loading of fibre and the resulting Poisson’s contraction occurring during this technique. This suggests that the Bowyer and Bader model provides a more relevant value of IFSS for composites. The results obtained from both methods showed that IFSS of the treated fibre composites was higher than that for untreated fibre composites. This supports that the hemp fibre interfacial bonding with PP was improved by white rot fungi treatment. |
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