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

Tsuyoshi Murata, Junko Hieda, Nagahiro Saito, Osamu Takai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

MgF2 porous nanoparticle coatings with SiO2 binder were formed on glasssubstrates 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 surfaceroughness. In the autoclave temperature region of 100180° C, the higher the autoclave temperaturewas, 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°.

Original languageEnglish
Pages (from-to)591-594
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume119
Issue number1391
DOIs
Publication statusPublished - 2011 Jul

Keywords

  • Fluoroalkylsilane
  • Nanoparticle
  • Self-assembled monolayer
  • Wettability

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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