Recycling of wood-reinforced poly-(propylene) composites: A numerical and experimental approach - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Industrial Crops and Products Year : 2021

Recycling of wood-reinforced poly-(propylene) composites: A numerical and experimental approach

Guillaume Barteau
  • Function : Author
Wiyao Azoti
Maxime Gautreau
  • Function : Author
Charles Francart
  • Function : Author
Guillaume Alès
  • Function : Author
Hamdi Jmal
Jérôme Bouchet
Antoine Kervoëlen
  • Function : Author
Johnny Beaugrand
  • Function : Author
Nadia Bahlouli
  • Function : Author
Alain Bourmaud
  • Function : Correspondent author
  • PersonId : 861440

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Injection moulded composite materials reinforced with wood fibres or particles can offer a credible alternative to other plant-derived fibres, particularly from an economic and environmental point of view. In this study, we compared the recycling behaviour of poly-(propylene) composites reinforced with ground wood particles versus wood and flax fibre reinforced composites. An experimental and numerical approach was used. In spite of the mechanical and morphological performances of fibres which were initially poorer than those of long fibres, the wood particles demonstrated their reinforcement potential (+84 % and +14 %, for the Young’s modulus and the strength at max, respectively, compared to the pure matrix), due to their good adhesion with the matrix and also to the stability of their aspect ratio after recycling (-24 % after 5 injection cycles against -66 % and -61 % for long flax and wood fibres, respectively). The numerical model developed and fed by the mechanical and morphological measurements carried out on the reinforcements made it possible to compare the experimental and numerical values. Overall, a close match was obtained between the two sets of parameters. The small differences obtained can be explained by the increase in fibre dispersion as the recycling process progresses, as well as by the possible increase in wood stiffness after several processing cycles.
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Dates and versions

hal-03223022 , version 1 (20-06-2022)


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Guillaume Barteau, Wiyao Azoti, Maxime Gautreau, Charles Francart, Guillaume Alès, et al.. Recycling of wood-reinforced poly-(propylene) composites: A numerical and experimental approach. Industrial Crops and Products, 2021, 167, pp.113518. ⟨10.1016/j.indcrop.2021.113518⟩. ⟨hal-03223022⟩
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