Abstract
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 (H2SO4) baths containing 10% sodium sulphate (Na2SO4). 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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Acknowledgments
The research was carried out in the EU FP6 project Biocelsol—Biotechnological Process for Manufacturing Cellulosic Products with Added Value, with contract number of NMP2-CT-2003-505567. The authors wish to thank European Commission for partly financing the work. The authors wish also to thank Teija Jokila and Nina Vihersola, VTT Biotechnology, for their excellent laboratory work related to the enzymatic treatments, Maija Järventausta and Esa Leppänen, Tampere University of Technology, for their excellent contribution in fibre spinning trials and fibre testing and Dr Ryszard Kwiatkowski of the University of Bielsko-Biała for valuable discussion on structural parameters. The text reflects only the authors’ views and the Community is not liable for any use that may be made of the information contained therein.
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Vehviläinen, M., Kamppuri, T., Rom, M. et al. Effect of wet spinning parameters on the properties of novel cellulosic fibres. Cellulose 15, 671–680 (2008). https://doi.org/10.1007/s10570-008-9219-3
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DOI: https://doi.org/10.1007/s10570-008-9219-3