Posted in | News | Microscopy | Nanoanalysis

Nanotechnology-Based Anti-Ice and Anti-Frost Surfaces

Harvard University researchers have discovered a novel technology that prevents development of ice or frost on metal surfaces. Any formation of ice can slide off the treated surface. The technology may have potential applications in aircraft, wind turbines, refrigeration systems and other industries.

A scalable method to directly coat aluminum surface with nanostructured polymer layer subsequently converted into a slippery liquid-infused porous surface (SLIPS) is demonstrated. SLIPS can effectively delay ice accumulation and facilitate removal of ice even under high humidity conditions.

The water repellent properties of the lotus leaf had inspired a research group to create an ice-repellent surface. The Amy Smith Berylson Professor of Materials Science at the Harvard School of Engineering and Applied Sciences (SEAS) and a member at the Wyss Institute for Biologically Inspired Engineering, Joanna Aizenberg led the research group. Under conditions of high humidity, this technique may not work, as frost and condensation get coated on the surface textures.

The research group invented the Slippery Liquid Infused Porous Surfaces (SLIPS) technology that exposes a molecularly flat liquid interface, devoid of defects. A hidden nanostructured solid immobilizes the interface. This helps address extreme pressure and high humidity conditions. Frost, solid ice, condensation and frost can easily slide off the surface.

The team developed a method to coat a rough material on to metal surfaces, on which the lubricant may stick on. This coating is anti-corrosive and non-toxic. The technology was applied on to refrigerator cooling fins and tested under deep freeze conditions. The frost-free effect lasted for a longer time when compared to existing systems.

The SLIPS technology reduces energy costs as it prevents ice formation at low temperatures. When this coating is applied onto wind turbines, wires, signs, and roofs the ice formed on them can be easily removed through vibration, agitation and wind.

The study was published online in ACS Nano.

Source: http://www.harvard.edu/

Disclaimer: The views expressed here are those of the author expressed in their private capacity and do not necessarily represent the views of AZoM.com Limited T/A AZoNetwork the owner and operator of this website. This disclaimer forms part of the Terms and conditions of use of this website.

G.P. Thomas

Written by

G.P. Thomas

Gary graduated from the University of Manchester with a first-class honours degree in Geochemistry and a Masters in Earth Sciences. After working in the Australian mining industry, Gary decided to hang up his geology boots and turn his hand to writing. When he isn't developing topical and informative content, Gary can usually be found playing his beloved guitar, or watching Aston Villa FC snatch defeat from the jaws of victory.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Thomas, G.P.. (2019, February 12). Nanotechnology-Based Anti-Ice and Anti-Frost Surfaces. AZoNano. Retrieved on August 18, 2022 from https://www.azonano.com/news.aspx?newsID=25032.

  • MLA

    Thomas, G.P.. "Nanotechnology-Based Anti-Ice and Anti-Frost Surfaces". AZoNano. 18 August 2022. <https://www.azonano.com/news.aspx?newsID=25032>.

  • Chicago

    Thomas, G.P.. "Nanotechnology-Based Anti-Ice and Anti-Frost Surfaces". AZoNano. https://www.azonano.com/news.aspx?newsID=25032. (accessed August 18, 2022).

  • Harvard

    Thomas, G.P.. 2019. Nanotechnology-Based Anti-Ice and Anti-Frost Surfaces. AZoNano, viewed 18 August 2022, https://www.azonano.com/news.aspx?newsID=25032.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Your comment type
Submit