An Overview of Silane-based Hybrid Sol-gel Coatings for Highly Efficient Metal Corrosion Protection

Sheydaei, Milad; Edraki, Milad

doi:10.22034/jams.2024.210131

An Overview of Silane-based Hybrid Sol-gel Coatings for Highly Efficient Metal Corrosion Protection

Document Type : Invited Review

Authors

Milad Sheydaei ¹

Milad Edraki ²

¹ Department of Chemical Engineering, Faculty of Engineering, University of Garmsar, Garmsar, Iran

² Department of Chemical and Polymer Engineering, South Tehran Branch, Islamic Azad University, P.O. Box 19585-466, Tehran, Iran

10.22034/jams.2024.210131

Abstract

The most significant issue facing metal structures is corrosion, which can lead to substantial losses and serious safety issues. Researchers are continuously searching for low-cost, high-performance solutions to address this problem. Traditionally, coatings have been the most popular method to mitigate corrosion. There is an increasing focus on developing environmentally friendly protective coatings, as many conventional coatings can harm the environment once they deteriorate. Many coatings use corrosion inhibitors, which create a synergistic effect that helps prevent corrosion. Unfortunately, many of these inhibitors contain toxic and harmful substances, which add to environmental risks. Therefore, selecting the right coating is essential. Among the various types of coatings, silane-based sol-gel coatings stand out as promising candidates. This paper discusses silane-based sol-gel coatings, the sol-gel method, and the factors that influence the effectiveness of these products. Additionally, it explores the use of plant-extracted inhibitors in sol-gel coatings.

Keywords

Environmental pollution

Green chemistry

Green inhibitors