Skip to Main content Skip to Navigation
Journal articles

Can supercritical carbon dioxide be suitable for the green pretreatment of plant fibres dedicated to composite applications?

Abstract : This work explores the use of supercritical carbon dioxide (sc-CO2) conditions as an innovative and environmentally friendly treatment of plant fibres to optimize their performance for integration into composite materials. This study evaluates, in particular, the influence of this treatment on the mechanical, thermal, hygroscopic properties and biochemical features of industrial hemp bast fibres. Two distinct settings were tested by tuning time, temperature and pressure parameters to assess the influence of the severity of the treatment on the fibre quality. Results show that sc-CO2 treatment induces an increase in the fibre fineness and a decrease in their moisture sensitivity while maintaining their initial resistance to temperature. These changes are consistent with the measured decrease in the relative content of hemicelluloses. A significant decrease in the tensile rigidity and strength is also observed as a function of the severity of sc-CO2 treatment, counterbalancing a little bit the benefits retained on the other properties.
Document type :
Journal articles
Complete list of metadatas

https://hal-agrosup-dijon.archives-ouvertes.fr/hal-02461189
Contributor : Administrateur Agrosupdijon <>
Submitted on : Thursday, January 30, 2020 - 2:59:39 PM
Last modification on : Wednesday, September 16, 2020 - 10:42:54 AM

Identifiers

Citation

Camille François, Vincent Placet, Johnny Beaugrand, Sylvie Pourchet, Gilles Boni, et al.. Can supercritical carbon dioxide be suitable for the green pretreatment of plant fibres dedicated to composite applications?. Journal of Materials Science, Springer Verlag, In press, 55 (11), pp.4671-4684. ⟨10.1007/s10853-019-04293-y⟩. ⟨hal-02461189⟩

Share

Metrics

Record views

112