Hydrophobization of epoxy nanocomposite surface with 1H,1H,2H,2H-perfluorooctyltrichlorosilane for superhydrophobic properties

• Authors: Maciej Psarski , Jacek Marczak , Grzegorz Celichowski , Grzegorz Sobieraj , Konrad Gumowski , Feng Zhou , Weimin Liu
• Languages of publication: EN

Abstracts

EN

Nature inspires the design of synthetic materials with superhydrophobic properties, which can be used for applications ranging from self-cleaning surfaces to microfluidic devices. Their water repellent properties are due to hierarchical (micrometer- and nanometre-scale) surface morphological structures, either made of hydrophobic substances or hydrophobized by appropriate surface treatment. In this work, the efficiency of two surface treatment procedures, with a hydrophobic fluoropolymer, synthesized and deposited from 1H,1H,2H,2H-perfluorooctyltrichlorosilane (PFOTS) is investigated. The procedures involved reactions from the gas and liquid phases of the PFOTS/hexane solutions. The hierarchical structure is created in an epoxy nanocomposite surface, by filling the resin with alumina nanoparticles and micron-sized glass beads and subsequent sandblasting with corundum microparticles. The chemical structure of the deposited fluoropolymer was examined using XPS spectroscopy. The topography of the modified surfaces was characterized using scanning electron microscopy (SEM), and atomic force microscopy (AFM). The hydrophobic properties of the modified surfaces were investigated by water contact and sliding angles measurements. The surfaces exhibited water contact angles of above 150° for both modification procedures, however only the gas phase modification provided the non-sticking behaviour of water droplets (sliding angle of 3°). The discrepancy is attributed to extra surface roughness provided by the latter procedure.

Keywords

EN

superhydrophobicity; epoxy resin; nanocomposites; hydrophobization; fluorosilane

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2012
• Volume: 10
• Issue: 5
• Pages: 1197-1201

Dates

published

1 - 10 - 2012

online

21 - 11 - 2012

Contributors

author

Maciej Psarski

• Department of Materials Technology and Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland

author

Jacek Marczak

• Department of Materials Technology and Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland

author

Grzegorz Celichowski

• Department of Materials Technology and Chemistry, University of Lodz, Pomorska 163, 90-236, Lodz, Poland

author

Grzegorz Sobieraj

• Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, Nowowiejska 24, 00-665, Warsaw, Poland

author

Konrad Gumowski

• Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, Nowowiejska 24, 00-665, Warsaw, Poland

author

Feng Zhou

• State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, 18 Middle Tianshui Road, 730000, Lanzhou, China

author

Weimin Liu

• State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, 18 Middle Tianshui Road, 730000, Lanzhou, China

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Identifiers

DOI

10.2478/s11534-012-0114-z