Journal
CELLULOSE
Volume 15, Issue 5, Pages 671-680Publisher
SPRINGER
DOI: 10.1007/s10570-008-9219-3
Keywords
biocelsol; cellulases; cellulosic fibres; directly alkaline soluble cellulose; dissolving pulp; enzymatic treatment of cellulose
Funding
- EU FP6 [NMP2-CT-2003-505567]
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Novel cellulose fibres (Biocelsol) were spun by traditional wet spinning technique from the alkaline solution prepared by dissolving enzyme treated pulp directly into aqueous sodium zincate (ZnO/NaOH). The spinning dope contained 6 wt.% of cellulose, 7.8 wt.% of sodium hydroxide (NaOH) and 0.84 wt.% of zinc oxide (ZnO). The fibres were spun into 5% and 15% sulphuric acid (H(2)SO(4)) baths containing 10% sodium sulphate (Na(2)SO(4)). The highest fibre tenacity obtained was 1.8 cNdtex(-1) with elongation of 15% and titre of 1.4 dtex. Average molecular weights and shape of molecular weight distribution curves of the celluloses from the novel wet spun cellulosic fibre and from the commercial viscose fibre were close to each other.
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