Coatings and Aerogels Based on Sol-Gel Processes

Authors

  • Konstantin Siegmann
  • Martina Hirayama

DOI:

https://doi.org/10.2533/chimia.2008.815

Keywords:

Anti-adhesive, Coating, Interface, Sol-gel, Surface

Abstract

This article summarizes applications of sol-gel coatings to modify surface properties, and the process is illustrated with several examples. The use of azobenzene-modified silanes leads to a photoswitchable coating displaying light-controlled wettability. Silane coupling reactions are used to coat surfaces with polymers, in order to hinder the ice crystal growth on surfaces. Liquid-like coatings based on poly(ethylene glycol) show anti-adhesive properties to lime. The preparation of aerogels could be improved by selecting proper silanes as coupling agents to the inner surface of the pores. These examples illustrate that sol-gel processes based on silianation reactons are most promising for industrial applications.

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Published

2008-10-29

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