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Upcycling of cellulosic textile waste with bacterial cellulose via Ioncell® technology
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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12
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International Journal of Biological Macromolecules, Volume 271
Abstract
Currently the textile industry relies strongly on synthetic fibres and cotton, which contribute to many environmental problems. Man-made cellulosic fibres (MMCF) can offer sustainable alternatives. Herein, the development of Lyocell-type MMCF using bacterial cellulose (BC) as alternative raw material in the Ioncell® spinning process was investigated. BC, known for its high degree of polymerization (DP), crystallinity and strength was successfully dissolved in the ionic liquid (IL) 1,5-diazabicyclo[4.3.0]non-5-enium acetate [DBNH][OAc] to produce solutions with excellent spinnability. BC staple fibres displayed good mechanical properties and crystallinity (CI) and were spun into a yarn which was knitted into garments, demonstrating the potential of BC as suitable cellulose source for textile production. BC is also a valuable additive when recycling waste cellulose textiles (viscose fibres). The high DP and Cl of BC enhanced the spinnability in a viscose/BC blend, consequently improving the mechanical performance of the resulting fibres, as compared to neat viscose fibres.
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Publisher Copyright: © 2024 The Authors
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A.G.S. Silva, F, Schlapp-Hackl, I, Nygren, N, Heimala, S, Leinonen, A, Dourado, F, Gama, M & Hummel, M 2024, 'Upcycling of cellulosic textile waste with bacterial cellulose via Ioncell® technology', International Journal of Biological Macromolecules, vol. 271, 132194. https://doi.org/10.1016/j.ijbiomac.2024.132194