Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Polysaccharide Blend Fibres Formed from NaOH, N-Methylmorpholine-N-oxide and 1-Ethyl-3-methylimidazolium acetate

Abstract : The aim of the study was to find new structured biopolymer blends bearing adjustable properties able to produce innovative materials. Apart from cellulose and three solvents (NaOH, N-methylmorpholine-N-oxide [NMMO] and 1-ethyl-3-methylimidazolium acetate [EMIMac]), 15 different polysaccharides were chosen to study the interactions ofpolysaccharides or their mixtures in solutions, as well as the solid state after forming. Dissolution screenings yielded promising polysaccharides, which were used for the preparation of cellulose/ polysaccharide solutions and subsequently for the shaping of blends with cellulose. The solubility and miscibility were evaluated by microscopy, DSC, particle analysis and rheology. Polysaccharides with a structure similar to that of cellulose, e.g., xylan, carrageenan or cellulose carbamate were not miscible, showing globular morphologies, whereas high-molar and side chains containing polysaccharides such as xanthan or tragacanth gum form co-continuous morphologies. The forming of blend fibres was nevertheless possible for all three solvents. The textile-physical properties of the blend fibres were slightly decreased compared to those of the unmodified fibre, in which fibres from NMMO and EMIMac had the highest performance. The presence of blended polysaccharides in the fibres produced was verified by residue sugar analysis, in which the highest amounts occurred for EMIMac fibres.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [18 références]  Voir  Masquer  Télécharger
Contributeur : Magalie Prudon <>
Soumis le : vendredi 25 mars 2011 - 11:16:41
Dernière modification le : mercredi 14 octobre 2020 - 04:02:45
Archivage à long terme le : : vendredi 2 décembre 2016 - 14:57:13


Fichiers éditeurs autorisés sur une archive ouverte


  • HAL Id : hal-00509555, version 1


Frank Wendler, Franck Meister, Dariusz Wawro, Ewa Wesolowska, Danuta Ciechanska, et al.. Polysaccharide Blend Fibres Formed from NaOH, N-Methylmorpholine-N-oxide and 1-Ethyl-3-methylimidazolium acetate. Fibres and Textiles in Eastern Europe, Institute of Chemical Fibres, 2010, 18 (2), pp.Pages 21-30. ⟨hal-00509555⟩



Consultations de la notice


Téléchargements de fichiers