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Regeneration of fibres from alkaline solution containing enzyme-treated 3-allyloxy-2-hydroxypropyl substituted cellulose

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Details

Original languageEnglish
Pages (from-to)2271-2282
Number of pages12
JournalCellulose
Volume22
Issue number4
DOIs
Publication statusPublished - 10 May 2015
Publication typeA1 Journal article-refereed

Abstract

The aim of this study was to regenerate fibres from the alkaline cellulose solution containing 3-allyloxy-2-hydroxypropyl substituents. Enzyme-treated cellulose was modified in alkaline aqueous tert-butanol (tBuOH) using allyl glycidyl ether (AGE) as the modification reagent. 3-allyloxy-2-hydroxypropyl substituted (AHP) enzyme-treated cellulose with DS<inf>A</inf> 0.05 was obtained. Enzyme-treated cellulose without (reference) and with substituents were dissolved in sodium zincate using the freezing-thawing cycle. The reference solution alone and the mixture solutions containing 10 or 25 % of the AHP cellulose were regenerated into cellulosic fibres using the wet spinning technique. The solutions containing 100 or 50 % of the AHP cellulose did not form fibres in acidic bath. The 10 % share of AHP cellulose did not affect the mechanical properties of the fibres (1.5 cN dtex<sup>−1</sup>), while the 25 % share decreased the tenacity slightly (1.3 cN dtex<sup>−1</sup>). Elongation of the fibres ranged from 18 to 22 %. The 10 and 25 % shares of AHP cellulose increased the water holding ability of fibres by 12 and 33 %, respectively. According to FESEM the fibre structures are composed of nanosized fibrils.

ASJC Scopus subject areas

Keywords

  • 3-Allyloxy-2-hydroxypropyl cellulose, AHP cellulose, Biocelsol, Enzyme-treated cellulose, Fibril structure, Regenerated fibres, Wet spinning

Publication forum classification

Field of science, Statistics Finland