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Production waste management of thermoplastic composites using compression moulding.

Moothoo, Julien and Garnier, Christian and Ouagne, Pierre Production waste management of thermoplastic composites using compression moulding. (2017) In: 21st International Conference on Composite Materials, 20 August 2017 - 25 August 2017 (Xi’an, China).

(Document in English)

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This study focuses on the mechanical recycling technique applied to fibre reinforced thermoplastics. The material studied are production scrap and off-cuts of bi-directional woven glass reinforced polypropylene pre-consolidated laminates. The traditional mechanical recycling technique involves a shredding step, giving coarse grains, followed by a grinding step, giving a finer material which is afterwards used as reinforcement in thermoplastic injection processes. However, from those two steps, degradation issues related to the reinforcement effective length limiting the reused material to low-end applications are encountered. The concept under study in this research work consists in by-passing the grinding step and to keep only a shredding or cutting step so as to limit the degradation of the initial material potential and keep a substantial reinforcement length. The obtained grains/aggregates are then directly reprocessed in bulk form by compression moulding. This preliminary study showed that the modulus of the recycled composite demonstrated values close to the equivalent quasi-isotropic continuous fibre laminate of the same composition.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-03467745
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université d'Orléans (FRANCE)
Laboratory name:
Deposited On:07 Oct 2021 13:55

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