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Investigation of the spinnability of cellulose/alkaline ferric tartrate solutions |
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| Authors: | Hai Vu-Manh,Frank Wendler,Hale Bahar Ö ztü rk,Thomas Bechtold |
| Affiliation: | a Research Institute of Textile Chemistry and Textile Physics, University of Innsbruck, Hoechsterstr. 73, A-6850 Dornbirn, Austria b Faculty of Textile-Garment Technology and Fashion Design, Hanoi University of Technology, Hanoi, Viet Nam c Centre of Excellence for Polysaccharide Research, Thuringian Institute for Textile and Plastics Research, Breitscheidstr. 97, D-07407 Rudolstadt, Germany |
| Abstract: | Dynamic rheology, UV/VIS spectrometry with temperature programming cuvette and reaction calorimetry were conducted on cellulose pulp/FeTNa (NaOH solution containing ferric tartaric acid complex) solutions to investigate their thermostability and spinnability. Color of cellulose/FeTNa solutions changed above 90 °C due to the decomposition of the complex. Thermal activity of cellulose/FeTNa solution started above 130 °C induced by water vapor evolution and complex decomposition. Regeneration of cellulose/FeTNa solutions in a non-solvent (acetic acid and Na-gluconate mixture) resulted in transition from cellulose I into cellulose II structure as revealed by WAXS measurements. Wet-spinning attempts of cellulose/FeTNa solutions yielded fiber-like shaped bodies with a brittle structure. |
| Keywords: | Alkali Cellulose Dissolution FeTNa Fiber Regeneration |
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