Superhydrophobic and lipophobic properties of self-organized honeycomb and pincushion structures

Hiroshi Yabu, Masafumi Takebayashi, Masaru Tanaka, Masatsugu Shimomura

研究成果: Article査読

352 被引用数 (Scopus)

抄録

This report describes the simple preparation of superhydrophobic and lipophobic surfaces by self-organization. Microporous polymer films of a fluorinated polymer with hexagonally arranged pores were prepared by casting from solution under humid conditions. Hexagonally packed water microdroplets were formed by evaporative cooling on the surface of the casting solution. After solvent evaporation, a honeycomb-patterned polymer film was formed with the water droplet array acting as a template; the water droplets themselves evaporated soon after the solvent. Two porous polymer layers were stacked vertically, separated by pillars at the hexagon vertexes. After peeling off the top layer using adhesive tape, a pincushion-like structure was obtained. Here, we show that superhydrophobic behavior was achieved, with the maximum contact angle, 170°, observed using these pincushion structures. Theoretical calculations fit the experimental results well. The lipophobic properties of the films are also discussed.

本文言語English
ページ(範囲)3235-3237
ページ数3
ジャーナルLangmuir
21
8
DOI
出版ステータスPublished - 2005 4 12
外部発表はい

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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