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Wednesday, 03 June 2020
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Raw materials & technologies, Technologies

Recent progress in corrosion resistant superhydrophobic coatings: A critical review

Monday, 11 May 2020

A detailed article reviews the impact of nano-material based SHCs on metal/alloys with a discussion of associated challenges, potential solutions and future opportunities.

Research on anti-corrosion coatings has traditionally been of highest importance toward the development of sustainable durable material. Gasparic 2016 – stock.adobe.com (symbol image).
Research on anti-corrosion coatings has traditionally been of highest importance toward the development of sustainable durable material. Gasparic 2...

Because of the serious consequences of structural failures due to corrosion, research on anti-corrosion coatings has traditionally been of highest importance toward the development of sustainable durable material.

Anti-corrosive coatings have played a significant role for increasing the durability of material without affecting the bulk properties and to perform its duty effectively, an anti-corrosive coating must possess intrinsic durability, adequate flexibility, adhesion and toughness to withstand impacts, cracking and appearance when subjected to stress, swell, mechanical abuse, or weathering. Exposure of metals and alloys in a humid environment may create additional challenges either to inhibit or slow down the overall corrosion rate.

Development of a holistic, permanent solution for the corrosion related issues

Despite significant improvements in corrosion coating technologies problems are continue to persist in the durable protection of metals and alloys and this is an emerging thrust area toward the development of a holistic, permanent solution for the corrosion related issues. In recent years, bio-inspired concepts of superhydrophobicity at nano-level and self-cleaning has exhibited exceptional potential as anticorrosive coatings, particularly in humid environments.

With the ability to retain mechanical properties at a higher temperature and contact angle (CA) of superhydrophobic range, nano-oxides and CNTs based superhydrophobic coatings (SHCs) are gaining momentum to reach an industrial scale for real-time applications.

The review can be found in Progress in Organic Coatings, Volume 140, March 2020.

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For more novel input about protective coatings you should have a look at the European Coatings Suppliers Hub. The platform has a selection of 20 technical video presentations on new coatings innovations. Five of those are directly addressing protective coating solutions.

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