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

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.
Authors:
;  [1] ;  [2] ;  [3] ;  [4]
  1. Engineering department, Université de Quebec en Abitibi-Témiscamingue (Canada)
  2. Université Caddi Ayad Marrakech, Laboratoire ’LCO2MC’, B.P. 549, Marrakech 40000, Maroc (Morocco)
  3. Mechanical department, Université de Québec à Chicoutimi Canada (Canada)
  4. Technology Center of industrial residuals, QC Canada (Canada)
Publication Date:
OSTI Identifier:
22391876
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1664; Journal Issue: 1; Conference: PPS-30: 30. International Conference of the Polymer Processing Society, Cleveland, OH (United States), 6-12 Jun 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; BIODEGRADATION; COMPOSITE MATERIALS; DUCTILITY; FILLERS; GRAFTS; HARDNESS; MATRIX MATERIALS; PERFORMANCE; POLYETHYLENES; SCANNING ELECTRON MICROSCOPY; SERVICE LIFE; THERMOPLASTICS; WEAR RESISTANCE; WOOD