@article{7e3faa7584d5422b9dfd13c6868376eb,
title = "Methyl cellulose/cellulose nanocrystal nanocomposite fibers with high ductility",
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.",
keywords = "Cellulose nanocrystal, Liquid crystal, Methylcellulose, Nanocomposite fiber, Toughness",
author = "Ville Hynninen and Pezhman Mohammadi and Wolfgang Wagermaier and Sami Hietala and Linder, {Markus B.} and Olli Ikkala and N. Nonappa",
note = "Funding Information: This work was carried out under the Academy of Finland Centre of Excellence Programme (HYBER 2014-2019) as well as ERC for Advanced Grant (DRIVEN 2017-2022). We acknowledge the provision of facilities and technical support by Aalto University at OtaNano – Nanomicroscopy Center (Aalto-NMC). V.H. acknowledges Tekniikan Edist{\"a}miss{\"a}{\"a}ti{\"o} ( The Finnish Foundation for Technology Promotion ) for financial support. Funding Information: This work was carried out under the Academy of Finland Centre of Excellence Programme (HYBER 2014-2019) as well as ERC for Advanced Grant (DRIVEN 2017-2022). We acknowledge the provision of facilities and technical support by Aalto University at OtaNano – Nanomicroscopy Center (Aalto-NMC). V.H. acknowledges Tekniikan Edist{\"a}miss{\"a}{\"a}ti{\"o} (The Finnish Foundation for Technology Promotion) for financial support. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",
year = "2019",
month = mar,
doi = "10.1016/j.eurpolymj.2018.12.035",
language = "English",
volume = "112",
pages = "334--345",
journal = "European Polymer Journal",
issn = "0014-3057",
publisher = "Elsevier Ltd.",
}