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Extrusion and injection moulding induced degradation of date palm fibre - polypropylene composites

Article dans une revue avec comité de lecture
Author
DOMENEK, Sandra
578074 Paris-Saclay Food and Bioproduct Engineering [SayFood]
BERZIN, Françoise
1002132 Fractionnement des AgroRessources et Environnement [FARE]
DUCRUET, Violette
578074 Paris-Saclay Food and Bioproduct Engineering [SayFood]
PLESSIS, Cédric
419361 Université Paris-Saclay
578074 Paris-Saclay Food and Bioproduct Engineering [SayFood]
DHAKAL, Hom
68170 University of Portsmouth
BEAUGRAND, Johnny
1002115 Unité de recherche sur les Biopolymères, Interactions Assemblages [BIA]
1002132 Fractionnement des AgroRessources et Environnement [FARE]
ccRICHAUD, Emmanuel
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/20467
DOI
10.1016/j.polymdegradstab.2021.109641
Date
2021
Journal
Polymer Degradation and Stability

Abstract

The use of date palm fibres, which are an abundant by-product of agriculture, as natural reinforcement in polypropylene (PP) was studied. Because odour emissions are one of the major challenges for natural fibre-based composites, the emission of Volatile Organic Compounds (VOC) generated at different processing steps was analysed online. The severest degradation on the date palm fibre morphology was observed at the injection moulding step, but even when degradation occurred date palm fibres were an effective reinforcement of PP and increased the Young's modulus significantly. Generation of odorous compounds caused by thermal degradation of date palm fibres such as furfural alcohol or methyl furfural was astonishingly low during the twin-screw extrusion and granulation process. In coherence with the evolution of the fibre morphology, the most critical processing step was the injection process. In conclusion, date palm fibres are a promising natural fibre for the production of natural fibre-based composites. Adapted twin-screw extrusion conditions allow for minimizing VOC emissions, but particular attention needs to be given to the optimization of the injection process.

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