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Monday, 23 September 2019
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Raw materials & technologies, Technologies, Functional coatings

Detering ice adhesion with amphiphilic coatings

Tuesday, 15 August 2017

Reseachers at the Coatings and Polymeric Materials Department, North Dakota State University, have investigated a series of amphiphilic siloxane polyurethane coatings for their icephobic properties.

Detering ice adhesion with amphiphilic coatings. Source: Pixabay

Detering ice adhesion with amphiphilic coatings. Source: Pixabay

The use of coatings having amphiphilic surfaces for anti-icing applications has not been studied to a large extent although these types of coatings have more recently been studied for anti-fouling (AF)/foul release (FR) applications.

Water absorption and barrier behaviour

Several polyurethane based amphiphilic coatings were prepared having variations in the composition as well as molecular weight of hydrophobic polydimethyl siloxane (PDMS), and hydrophilic polyethylene glycol (PEG). Surface characterisations revealed the presence of both PDMS and PEG moieties, implying amphiphilic surface characteristics. The icephobic properties were evaluated to investigate if amphiphilic formulations can deter ice adhesion. Water absorption and barrier behaviours and their correlation to anti-icing properties were also studied. The amphiphilic systems displayed a better icephobic performance compared to industrial control.

The study is published in: Progress in Organic Coatings, Volume 112, November 2017, Pages 191-199

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