Swelling and dissolution of cellulose, Part III: plant fibres in aqueous systems - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Cellulose Année : 2008

Swelling and dissolution of cellulose, Part III: plant fibres in aqueous systems

(1) , (1)
1

Résumé

Raw and refined flax, hemp, abaca, sisal, jute and ramie fibres are dipped into N-methylmorpholine N-oxide (NMMO)-water with various contents of water and into hydroxide sodium (NaOH)-water. The swelling and dissolution mechanisms of these plant fibres are similar to those observed for cotton and wood fibres. Disintegration into rod-like fragments, ballooning followed or not by dissolution and homogeneous swelling are all observed as for wood and cotton fibres, depending on the quality of the solvent. Balloons are not typical of wood and cotton and they seem to be present in all plant fibres. Another interesting result is that the helical feature seen on the balloon membrane is not related to the microfibrillar angle. Plant fibres are easier to dissolve than wood and cotton. This is not related to the molar mass of the cellulose chain. Raw plant fibres keeping most its non-cellulosic components do not show the formation of balloons.

Dates et versions

hal-00509599 , version 1 (13-08-2010)

Identifiants

Citer

Céline Cuissinat, Patrick Navard. Swelling and dissolution of cellulose, Part III: plant fibres in aqueous systems. Cellulose, 2008, 15 (1), pp.Pages 67-74. ⟨10.1007/s10570-007-9158-4⟩. ⟨hal-00509599⟩
65 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More