Lignin containing micro and nano-fibrillated cellulose obtained by steam explosion: Comparative study between different processes - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Carbohydrate Polymers Année : 2022

Lignin containing micro and nano-fibrillated cellulose obtained by steam explosion: Comparative study between different processes

Résumé

The isolation of lignin containing micro- and nanofibrillated cellulose (L-MNFC) requires a multistep process. In this study, beech wood was pre-treated by steam explosion (SE), refined or pre-treated by 3 SE and grinded until gel formation. A conventional cooking in an autoclave (SC) was applied in order to get a control sample. The effect of bleaching of a SE pulp was also studied. The chemical composition of the pulps was assessed as well as fiber morphology to compare the effect of the different processes. Quality index and energy consumption during the production process were studied. Results showed that SE can replace SC for the production of pulps with higher lignin content: 8–12% wt. and 3% wt., respectively. Gels contain micro and nanofibrillated cellulose and residual fibers with a dispersion of lignin nanoparticles and some nanocrystals. Optimization of the ultrafine grinding step was required to minimize the energy consumption
Fichier principal
Vignette du fichier
Carb Polym Saad version Hal.pdf (1.36 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03670292 , version 1 (03-06-2022)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Saad Nader, Nicolas Brosse, Tania Daas, Evelyne Mauret. Lignin containing micro and nano-fibrillated cellulose obtained by steam explosion: Comparative study between different processes. Carbohydrate Polymers, 2022, 290, pp.119460. ⟨10.1016/j.carbpol.2022.119460⟩. ⟨hal-03670292⟩
43 Consultations
64 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More