Personne : Rodrigue, Denis
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Rodrigue
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Denis
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Université Laval. Département de génie chimique
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ncf13673018
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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 Characterization of UHMWPE/wood composites produced via dry-blending and compression molding(Wiley, 2013-03-08) Rodrigue, Denis; Cloutier, Alain; Mahfoudh, AbirIn this study, composites made from wood flour and ultra‐high molecular weight polyethylene (UHMWPE) were produced and characterized. In particular, the composites were initially prepared using a simple dry mixing technique and then compression molded. The effect of wood content on the mechanical properties was determined up to 30wt%. Characterization included scanning electron microscopy to investigate wood dispersion and interfacial bonding quality, while the mechanical tests included tensile, torsion, and flexion. The results show that good dispersion and adhesion was achieved and wood flour addition increased substantially (up to 97%) all the moduli in the range of conditions tested. Finally, it was found that hardness increased by about 5 Shore D points by adding 30% wood flour in UHMWPE. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers