Personne : Kazemi, Yasamin
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Structures organisationnelles
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Kazemi
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Yasamin
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Faculté des sciences et de génie, Université Laval
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ncf11863722
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Publication Restreint Design analysis of three-layered structural composites based on post-consumer recycled plastics and wood residues(Elsevier, 2013-06-13) Rodrigue, Denis; Kazemi, Yasamin; Cloutier, AlainThree-layered structural composites were produced from municipal plastic wastes and wood flour residues to investigate the effects of design parameters on their flexural and impact performance. The studied parameters include wood content, thickness of individual composite layers, as well as stacking sequence and configuration (symmetric and asymmetric structures). The results indicate that the core layer has a lower influence on the flexural properties of structural beams in comparison with the skins. But depending on beam configuration (stacking sequence), different flexural characteristics can be obtained using the same composite layers. The classical beam theory was used to predict the flexural modulus with high precision. In addition, performance of the beams under impact tests was shown to be independent from their stacking sequences and layer thicknesses for each configuration.Publication Restreint Mechanical and morphological properties of wood plastic composites based on municipal plastic waste(Wiley, 2013-03-08) Rodrigue, Denis; Kazemi, Yasamin; Cloutier, AlainProduction and characterization of wood plastic composites (WPC) from the light fraction of municipal plastic wastes (post‐consumer) and wood processing residues (sawdust) were investigated. Composition analysis revealed the presence of polyethylene (PE) and polypropylene (PP) as the two main components of the matrix. In order to improve compatibility and adhesion between all the phases, an ethylene–octene copolymer was used to compatibilize the polymer phases and was also acting as an impact modifier, while the addition of maleated polyethylene and maleated polypropylene (MAPP) were acting as coupling agents between the polymer matrix and the wood flour. The combined effect of all the components was found to produce composites with interesting morphological (dispersion and adhesion) and mechanical properties (tension, torsion, flexion, and impact) after optimization of the additive package (blend of coupling agents).