The fatty acids based organofunctional silane protective coatings for concrete

K.  Szubert

doi:10.3989/mc.2021.03420

Authors

K. Szubert Faculty of Chemistry, Adam Mickiewicz University in Poznan https://orcid.org/0000-0003-0029-8671

DOI:

https://doi.org/10.3989/mc.2021.03420

Keywords:

Fatty acids, Sol-gel processes, Organically modified silanes, Concrete, Protective coatings

Abstract

The possibility of using free fatty acids for the synthesis of new organofunctional silanes is shown. In nature, fatty acids occur in the form of esters with glycerin (fats) and are widely used for production of soap, oil paints, medicines and cosmetics. Of particular interest in this study was the application of organosilicon derivatives of oleic acid for production of coating that would cover the surface of concrete and protect it from water permeation. As a result of proposed silanization, the concrete surface acquired hydrophobic character with the wetting angles up to 115°, and the concrete absorbability was reduced by up to 93%.

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