Improved Anti-Icing Materials

  • Author: ChemistryViews.org
  • Published: 17 April 2019
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: Advanced Materials/Wiley-VCH
thumbnail image: Improved Anti-Icing Materials

Ice can hinder the use of, e.g., airplanes, ships, or wind turbines. Traditional de-icing methods can be highly time- and energy-consuming. Anti-icing coatings that prevent the formation and/or adhesion of ice on surfaces could provide an alternative.


Sushant Anand, University of Illinois at Chicago, USA, and colleagues have developed an approach to delay the freezing of water droplets on surfaces. The team used phase‐switching liquids (PSLs), which are liquid under ambient conditions, but solid at the freezing point of water, to coat the surface. They used cyclohexane, which has a melting point of 6.5 °C, as a model PSL. When a water droplet condenses on solid cyclohexane, the coating takes up the released heat and melts around the droplet. This causes the droplet to move and significantly delays freezing. Other organic compounds, such as dimethyl sulfoxide (DMSO), can also be used as a PSL.


PSLs can delay ice formation up to 300 times longer than state-of-the-art coatings. PSLs also have another advantage over other anti-icing coatings, which are liquid below 0°C: They are more resistant and need to be reapplied much less often. The coatings can also repel other liquids, such as motor oil, and thus, prevent the contamination of surfaces. Due to the melting and refreezing induced by the condensation of water on the surface, the coatings also have self-healing properties.


 

Article Views: 1106

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH