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7. Apr 2022 | Application Areas

Superhydrophobic and icephobic polyurethane coatings

A recently published review article focuses on fundamentals, progresses, challenges and opportunities of superhydrophobic and icephobic polyurethane coatings.
PU based coatings offer excellent mechanical strength and durability, toughness, good abrasion resistance, etc. 
Image source: holzijue - Pixabay (symbol image).

Engineering icephobic coatings has been a long standing effort to address the challenges caused by ice formation and accumulation in our daily lives and in several industrial applications. Therefore, a new review summaries trends in the progress of high performance hydrophobic and superhydrophobic polyurethane (PU) based coatings, their potential to be used as icephobic surfaces, applicability in passive anti-icing and consequent drawbacks/challenges.

Meanwhile, numerous industrial coatings are recommended, a wide variety of PU based coatings can be produced from a broad range of diisocyanates, polyols and other additives. This makes it possible to obtain various types of tailored coatings from PUs that can serve many specific applications as top coats in different industries due to their specific properties. PU based coatings offer excellent mechanical strength and durability, toughness, good abrasion resistance, etc.

PU based coatings are rather hydrophilic

However, owing to the fact that they have a lot of polar groups on the surface, PU based coatings are rather hydrophilic in nature. Therefore, achieving superhydrophobic and icephobic PU based coatings remains an important issue for current research and development. The present review aims to shed light on superhydrophobic and icephobic mechanisms that have been pursued to design PU based coatings. At first, a short introduction of the general overview of PU chemistry is presented, followed by a comprehensive review of the state-of-the-art methods that have been used by several researchers to modify and design superhydrophobic and icephobic PU coatings. Finally, the challenges and urgent issues facing further development in this field are discussed.

The review has been published in Progress in Organic Coatings, Volume 165, April 2022.

EC Library Polyurethanes



The chemistry of polyurethane coatings is of great significance in many applications worldwide. Moreover, their development potential has yet to be exhausted by any means. New applications are being identified and the product range will be further development. The book provides a comprehensive overview of the chemistry and the various possible application fields of polyurethanes. It starts by illustrating the principles of polyurethane chemistry, enabling the reader to understand the current significance of many applications and special developments. Newcomers learn about the key concepts of polyurethane chemistry and the main application technologies, while experienced specialists will value the insights on current trends and changes.

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