Superhydrophobicity of polymer films via fluorine atoms covalent attachment and surface nano-texturing
| Autor: | Jinlong Zha, Leonid N. Alekseiko, Sahal Saad Ali, Guillaume Monier, Alexander P. Kharitonov, D. Claves, Jérémy Peyroux, Nicolas Batisse, Thierry Darmanin, Marc Dubois, Frédéric Guittard |
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| Přispěvatelé: | Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut Pascal (IP), SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Département Ingénierie des procédés (IP), Institut national de recherche et de sécurité (Vandoeuvre lès Nancy) (INRS ( Vandoeuvre lès Nancy)), Institute of Energy Problems of Chemical Physics, Russian Academy of Sciences [Moscow] (RAS), NATURE INSPIRES CREATIVITY ENGINEERS LAB (N.I.C.E. Lab), Université Côte d'Azur (UCA), Far Eastern Federal University (FEFU), SIGMA Clermont (SIGMA Clermont)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Superhydrophobicity
Nanofibers Composite 02 engineering and technology 010402 general chemistry 01 natural sciences Biochemistry Inorganic Chemistry Contact angle chemistry.chemical_compound Fluorination Polymer chemistry Environmental Chemistry [CHIM]Chemical Sciences Physical and Theoretical Chemistry Micro-texturing Polymer chemistry.chemical_classification Nanocomposite Nanotubes Carbon nanofiber Organic Chemistry 021001 nanoscience & nanotechnology Polyvinylidene fluoride Laser ablation 0104 chemical sciences chemistry Polymerization Nanofiber Composite Polymer Polystyrene Fluorination composite Polymer micro-texturing nanofibers nanotubes superhydrophobicity laser ablation 0210 nano-technology |
| Zdroj: | Journal of Fluorine Chemistry Journal of Fluorine Chemistry, 2017, 200, pp.123-132. ⟨10.1016/j.jfluchem.2017.06.011⟩ Journal of Fluorine Chemistry, Elsevier, 2017, 200, pp.123-132. ⟨10.1016/j.jfluchem.2017.06.011⟩ |
| ISSN: | 0022-1139 |
| DOI: | 10.1016/j.jfluchem.2017.06.011⟩ |
| Popis: | International audience; Surface micro/nano-texturing combined with the presence of fluorine atoms can result in superhydrophobicity. Different strategies are investigated in order to determine the critical parameters to reach such properties. On the one hand, fluorine atoms were grafted by direct fluorination of carbon nanofibers (treatment with gaseous F2 resulted in samples denoted F-CNF), and on the other hand, fluorinated polymers such as polyvinylidene fluoride PDVF or poly(ethylene oxide) PEO fluorinated with F2 as well as commercial hydrophobic polymers like polystyrene (PS) were used as binders and/or polymer matrix to produce nanocomposites. Stable superhydrophobic properties are obtained with F-CNF/PVDF nanocomposites micro-textured with femtosecond laser ablation and F-CNF/PS nanocomposites, with water contact angles of 157° and 155° respectively. Polystyrene was also covalently grafted onto the nanofiber surface through a two-step process: fluorination followed by monomer grafting. The polymerization of styrene ensures both covalent grafting onto the carbonaceous surface and a good dispersion of nanofibers inside the polymer lattice. Moreover, CF bonds exhibit a covalent nature in fluorinated nanofibers, in PVDF, in fluorinated PEO and in the fluorinated resin and ensure an improved chemical stability for the studied nanocomposites and micro-textured resin. Comparison of the water contact angles for nanocomposites with PS, PVDF, PEO and fluorinated PEO highlights that the polymer matrix imposes its surface chemistry whereas the emergence of nanofibers results in a necessary nano-texturing. |
| Databáze: | OpenAIRE |
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