The Impact of Green Corrosion Inhibitors on the Protection Performance of Hybrid Silane Sol-Gel Coatings: A Review

In man-made structures, corrosion is one of the most important problems and environmentally friendly protective coatings are one of the vital requests in different industries. In this article, silane-based sol-gel coatings, as a substitution to toxic coatings based on chromates, have been evaluated. The role of using different green additives, extracted from plants, to deal with corrosion in different corrosive media has been investigated. However, different parameters can affect the efficiency of these materials such as pH, temperature, concentration, substrate type, media, compatibility, etc. The comparison of the anti-corrosion performance of silane sol gel coatings containing these green inhibitors showed that there is much potential for the broader application of these safe materials for maintenance of structures.

Keywords:

Metallic Substrate , Corrosion Mitigation , Sol-Gel , Protective coating , Green Inhibitors