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Nanomaterials 2018, 8(7), 467; https://doi.org/10.3390/nano8070467

Treatment of Nanocellulose by Submerged Liquid Plasma for Surface Functionalization

1
Department of Polymer, National Institute for Research and Development in Chemistry and Petrochemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
2
National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409, Magurele-Bucharest, 077125 Ilfov, Romania
3
National Institute for Chemical—Pharmaceutical Research and Development, 112 Calea Vitan, 031299 Bucharest, Romania
*
Authors to whom correspondence should be addressed.
Received: 24 May 2018 / Revised: 22 June 2018 / Accepted: 22 June 2018 / Published: 26 June 2018
(This article belongs to the Special Issue Plasma based Synthesis and Modification of Nanomaterials)
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Abstract

Tailoring the surface properties of nanocellulose to improve the compatibility of components in polymer nanocomposites is of great interest. In this work, dispersions of nanocellulose in water and acetonitrile were functionalized by submerged plasmas, with the aim of increasing the quality of this reinforcing agent in biopolymer composite materials. Both the morphology and surface chemistry of nanocellulose were influenced by the application of a plasma torch and filamentary jet plasma in a liquid suspension of nanocellulose. Depending on the type of plasma source and gas mixture the surface chemistry was modified by the incorporation of oxygen and nitrogen containing functional groups. The treatment conditions which lead to nanocellulose based polymer nanocomposites with superior mechanical properties were identified. This work provides a new eco-friendly method for the surface functionalization of nanocellulose directly in water suspension, thus overcoming the disadvantages of chemical treatments. View Full-Text
Keywords: nanocellulose; plasma treatment; dielectric barrier discharge; submerged liquid plasma; polymer nanocomposite nanocellulose; plasma treatment; dielectric barrier discharge; submerged liquid plasma; polymer nanocomposite
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Panaitescu, D.M.; Vizireanu, S.; Nicolae, C.A.; Frone, A.N.; Casarica, A.; Carpen, L.G.; Dinescu, G. Treatment of Nanocellulose by Submerged Liquid Plasma for Surface Functionalization. Nanomaterials 2018, 8, 467.

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