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Abstract
Methylcellulose/cellulose nanocrystal (MC/CNC) nanocomposite fibers showing high ductility and high modulus of toughness were prepared by a simple aqueous wet-spinning from corresponding nanocomposite hydrogels into ethanol coagulation bath followed by drying. The hydrogel MC aq. concentration was maintained at 1 wt-% while the CNC aq. loading was systematically varied in the range 0–3 wt-%. This approach resulted in MC/CNC fiber compositions from 25/75 wt-%/wt-% to 95/5 wt-%/wt-%. The optimal mechanical properties were achieved with the MC/CNC composition of 80/20 wt-%/wt-% allowing high strain (36.1%) and modulus of toughness (48.3 MJ/m3), still keeping a high strength (190 MPa). Further, we demonstrate that the continuous spinning of MC/CNC fibers is potentially possible. The results indicate possibilities to spin MC-based highly ductile composite fibers from environmentally benign aqueous solvents.
Original language | English |
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Pages (from-to) | 334-345 |
Number of pages | 12 |
Journal | European Polymer Journal |
Volume | 112 |
DOIs | |
Publication status | Published - 1 Mar 2019 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Cellulose nanocrystal
- Liquid crystal
- Methylcellulose
- Nanocomposite fiber
- Toughness
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DRIVEN: Field driven materials for functions, dissipation, and mimicking Pavlovian adaptation
Eklund, A., Ikkala, O., Gustavsson, L., Chandra, S., Cherian, T., Lin, Z., Girmay, S., Liang, C., Hu, S., Hong, X., Fang, Y., Peng, B., Som, A., Wani, O., Srbova, L., Zhang, H. & Ressouche, E.
01/10/2017 → 30/09/2022
Project: EU: ERC grants
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HYBER: The Academy of Finland's Centre of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials research (2014-2019)
Cherian, T., Ikkala, O., Bertula, K., Morits, M., Hynninen, V., Myllymäki, T., Toivonen, M., Haataja, J., Poutanen, M., Nonappa, N., Sanchez Sanchez, A., Rissanen, S. & Sohrabi, F.
01/01/2017 → 31/12/2019
Project: Academy of Finland: Other research funding