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Recycling process of wood flour reinforced polypropylene composites

Abstract : This work deals with the influence of multiple injection moulding cycles on the properties of wood flour reinforced polypropylene (PP) composites. The initial wood particle size in the range of 70-150 μm and 200-500 μm was first studied. Then, the influence of the addition of a coupling agent such as polypropylene grafted with maleic anhydride (PPgma) at a given rate was investigated. Biocomposite compounds (20wt% of wood flour) are produced by twin-screw extrusion. Then, multiple injection/grinding cycles were performed (up to 7 passes) to obtain normalized samples. Mechanical (tensile, impact) and thermal (cristallinity rate) properties of the biocomposites are evaluated. The change of viscosity is assessed through rheological measurements.
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https://hal.mines-ales.fr/hal-02900350
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Submitted on : Thursday, July 16, 2020 - 9:04:47 AM
Last modification on : Wednesday, August 5, 2020 - 3:48:48 AM

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  • HAL Id : hal-02900350, version 1

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Lata Soccalingame, Perrin Didier, Jean-Charles Bénézet, Anne Bergeret. Recycling process of wood flour reinforced polypropylene composites. ICNF 2013 - 1st International Conference on Natural Fibers Sustainable Materials for Advanced Applications, Jun 2013, Guimarães, Portugal. ⟨hal-02900350⟩

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