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Article Dans Une Revue Journal of Materials Science Année : 2018

Combination of twin-screw extruder and homogenizer to produce high-quality nanofibrillated cellulose with low energy consumption

Fleur Rol
Gabriel Banvillet
Valérie Meyer
Michel Petit-Conil
Julien Bras

Résumé

The commercialization of cellulose nanofibrils (CNF) is limited due to the high energy consumed during production. Twin-screw extrusion has recently been employed for the energy-efficient production of CNF with high solid content, but the method requires several passes. Cellulose nanofibrils have been produced by using both a twin-screw extruder and a homogenizer. Some combinations require a fewer number of passes thereby using less energy, while maintaining the desired CNF quality. The morphology and quality of CNF were characterized by optical microscopy, MorFi analysis, and with a recently developed quality index. The combination of one pass through the twin-screw extruder and two passes through the homogenizer decreases energy consumption by 45%. These CNF have a similar quality to CNF produced after five passes through the homogenizer alone.

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Dates et versions

hal-03773107 , version 1 (08-09-2022)

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Fleur Rol, Gabriel Banvillet, Valérie Meyer, Michel Petit-Conil, Julien Bras. Combination of twin-screw extruder and homogenizer to produce high-quality nanofibrillated cellulose with low energy consumption. Journal of Materials Science, 2018, 53 (17), pp.12604-12615. ⟨10.1007/s10853-018-2414-1⟩. ⟨hal-03773107⟩

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