Wettability of MgF2 porous nanoparticle layers covered with fluoroalkylsilane self-assembled monolayer

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概要

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• MgF2 porous nanoparticle coatings with SiO2 binder were formed on glass substrates by solgel method. The samples were exposed to fluoro-alkyl silane (FAS) vapor and heated at 150°C to give water repellency. We measured surface roughnesses and static contact angles of water of the samples and examined the relation between surface roughnesses and contact angles. Scanning Probe Microscopy (SPM) confirmed that the FAS treatment had no effect on the surface roughness. In the autoclave temperature region of 100–180°C, the higher the autoclave temperature was, the larger the surface roughness was. The sample prepared from the 100°C autoclaved sol had the minimum surface roughness of 4.1 nm and showed the minimum static contact angle of 115°. On the other hand, the sample prepared from the 180°C autoclaved sol had the maximum surface roughness of 9.5 nm and showed the maximum static contact angle of 134°.

著者

• Saito Nagahiro

  Department Of Materials Processing And Engineering Graduate School Of Engineering Nagoya University

• Takai Osamu

  Department Of Materials Processing Engineering Graduate School Of Engineering Nagoya University

• Murata Tsuyoshi

  Department Of Chemistry Graduate School Of Science Osaka University

• HIEDA Junko

  Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya Univ

• HIEDA Junko

  Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University

• MURATA Tsuyoshi

  Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University

• TAKAI Osamu

  Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University

• Takai Osamu

  Department of Materials and Processing Engineering, Nagoya University,

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