Evaluation of mechanical properties and durability performance of HDPE-wood composites


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Tazi, M., Erchiqui, F., Kaddami, H., Bouazara, M. et Poaty, B. (2015). Evaluation of mechanical properties and durability performance of HDPE-wood composites. AIP Conference Proceedings , 1664 (150001). doi:10.1063/1.4918497 Repéré dans Depositum à https://depositum.uqat.ca/id/eprint/979

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The objective of this work is to evaluate the mechanical properties and durability performance of bio-composite materials made from sawdust and thermoplastic polymer (HDPE). For the preparation of the composites, sawdust in different proportions with Maleic Anhydride grafted Polyethylene (MAPE) as the coupling agent was used. The thermal and mechanical properties were successively characterized. The results indicate that adding wood fillers to a polymer matrix increases the degree of crystallinity and improves the tensile strength and ductility of composites. On the contrary, resistance to water absorption decreases as a function of the wood fillers. Scanning electron microscopy (SEM) was used to analyze morphological structure alteration when exposed to intense weathering. The biodegradability of bio-composites up to 97 days was also investigated; the results indicate that, by increasing the filler content, the amount of weight loss increased as well. In other words, even though the addition of sawdust to thermoplastic polymer improves the mechanical performance of a composite material, it also accelerates the biodegradation rate of the composite. An optimum amount of filler content might compromise the effect of biodegradation and mechanical properties of composite materials.

Type de document: Article
Informations complémentaires: Licence d'utilisation : http://sherpa.ac.uk/romeo/issn/0094-243X/
Mots-clés libres: Wood plastic composites; Mechanical properties; Morphological structure; Biodegradability
Divisions: Génie
Date de dépôt: 29 mars 2020 17:56
Dernière modification: 29 mars 2020 17:56
URI: https://depositum.uqat.ca/id/eprint/979

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