Abstract
AbstractWe report on a new process for the spinning of high-performance cellulosic fibers. For the first time, cellulose has been dissolved in the ionic liquid (IL) 1-ethyl-3-methylimidazolium octanoate ([C2C1im][Oc]) via a thin film evaporator in a continuous process. Compared to other ILs, [C2C1im][Oc] shows no signs of hydrolysis with water. For dope preparation the degree of polymerization of the pulp was adjusted by electron beam irradiation and determined by viscosimetry. In addition, the quality of the pulp was evaluated by means of alkali resistance. Endless filament fibers have been spun using dry-jet wet spinning and an extruder instead of a spinning pump, which significantly increases productivity. By this approach, more than 1000 m of continuous multifilament fibers have been spun. The novel approach allows for preparing cellulose fibers with high Young's modulus (33 GPa) and unprecedented high tensile strengths up to 45 cN/tex. The high performance of the obtained fibers provides a promising outlook for their application as replacement material for rayon-based tire cord fibers.
Publisher
Springer Science and Business Media LLC
Reference87 articles.
1. Abels F, Cwik T, Beyer R, Hermanutz F (2017) Process for the preparation of polymer fibers from polymers dissolved in ionic liquids by means of an air gap spinning process. Germany Patent WO2017/137284AI.
2. Ahmad W, Ostonen A, Jakobsson K, Uusi-Kyyny P, Alopaeus V, Hyväkkö U, King AWT (2016) Feasibility of thermal separation in recycling of the distillable ionic liquid [DBNH][OAc] in cellulose fiber production. Chem Eng Res Des 114:287–298. https://doi.org/10.1016/j.cherd.2016.08.032
3. Archwal WB, Narayan TV, Puaro UM (1967) Alkaline iron-tatrate comples solutions as solvents for cellulosic materials. Part I. Application to the determination of intrinsic viscosity. Tappi J 50:90A–93A
4. Asaadi S, Hummel M, Hellsten S, Harkasalmi T, Ma Y, Michud A, Sixta H (2016) Renewable high-performance fibers from the chemical recycling of cotton waste utilizing an ionic liquid. Chemsuschem 9:3250–3258. https://doi.org/10.1002/cssc.201600680
5. Asaadi S, Hummel M, Ahvenainen P, Gubitosi M, Olsson U, Sixta H (2018) Structural analysis of Ioncell-F fibres from birch wood. Carbohydr Polym 181:893–901. https://doi.org/10.1016/j.carbpol.2017.11.062
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