Natural fibers; Hydrophobicity; Fluorescence probes; Low melting temperature mixture; Impregnation
Abstract :
[en] Bast flax fibers were treated, with or without ultrasound assistance, using a low melting mixture (LMM) composed of lactic acid, d-glucose and water. This LMM treatment affected both lignin and hemicelluloses contents and modified the fibers properties identified as crucial parameters in an industrial context, i.e. coloration, wettability, crystallinity, fibers diameter and chemical composition. Surface chemistry of the fibers were investigated through fluorescent tagged carbohydrates binding modules revealing macromolecular rearrangements responsible of both a fibers crystallinity enhancement and an unexpected hydrophobicity. It has been found that LMM treatments bleach fibers, which is considered a beneficial effect independent of the treatments.
Disciplines :
Chemistry
Author, co-author :
Morin, Sophie ; Université de Liège - ULiège > Département GxABT > SMARTECH
Lecart, Brieuc ; Université de Liège - ULiège > Département GxABT > SMARTECH
Istasse, Thibaut ; Université de Liège - ULiège > Département GxABT > SMARTECH
Bailly Maître Grand, Claire
Meddeb-Mouelhi, Fatma; Université du Québec à Trois-Rivières > Département chimie, biochimie et physique > Laboratoire de recherche sur le métabolisme spécialisé végétal
Beauregard, Marc; Université du Québec à Trois-Rivières > Département chimie, biochimie et physique
Richel, Aurore ; Université de Liège - ULiège > Département GxABT > SMARTECH
Language :
English
Title :
Effect of a low melting temperature mixture on the surface properties of lignocellulosic flax bast fibers
Publication date :
01 April 2020
Journal title :
International Journal of Biological Macromolecules
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