Water repellent ORMOSIL films for the protection of stone and other materials

Ioannis Karapanagiotis, Alexandros Pavlou, Panagiotis N. Manoudis, Katerina E. Aifantis

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

Organically modified silica (ORMOSIL) gels were produced through a sol-gel method and used to coat different materials, including glass, silicon, iron, paper, melinex and several stones, so as to examine the potential applications ranging from coatings of biomedical devices to cultural monuments. Superhydrophobicity and water repellence were induced on the surfaces of all the treated materials, as high static (>165°) and low tilt (<4°) contact angles were achieved. The treated surfaces were studied using scanning electron microscopy, which revealed the formation of a micro/nano-structured topography. It was shown that the wettability of the ORMOSIL films was not affected by (i) the underlying substrate or (ii) the pH of the water drop.

Original languageEnglish (US)
Pages (from-to)276-279
Number of pages4
JournalMaterials Letters
Volume131
DOIs
StatePublished - Sep 15 2014

Keywords

  • Cultural heritage
  • Film
  • Sol-gel
  • Stone
  • Superhydrophobic
  • Water repellent

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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