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Lecture

WEB Hierarchical hydrophobic surfaces and coatings for anti-icing and de-icing applications

Tuesday (22.09.2020)
15:00 - 15:15 Z: Special Symposia I
Part of:


Prevention of ice formation is very important for all industries and activities that operate near freezing temperatures, from aeronautic transport, power lines, solar cells, and wind turbines to oil platforms and marine applications In general, all equipment and devices operating in cold outdoor environment during the harsh winter season benefit from remedies to avoid icing. Today, active methods for deicing effect are commonly used; i.e. heating or by using chemicals to melt the ice, mechanical removal or use of organic solvents (e.g. deicing of aeroplanes). However, these methods are time and energy consuming, cost additive, and may cause environmental issues. Therefore, other approaches have been proposed. Passive coatings have been under investigation lately, and they exhibit several important advantages and are of interest due to their significant economic, safety and energy benefits within both prevention (anti-icing) and removal (de-icing) of ice. Other types of solutions can utilize energy from sun light or a light source in combination with the coating’s properties, to function as a de-icing surface.


Here, we will show some results on surface modification to obtain a hierarchical surface/coating structure, and how this correspond to the hydrophobicity and the anti-icing/de-icing. In addition, some results on different coating material solutions, which can utilize light absorbance for ice removal will be present.

 

Speaker:
Prof. Dr. Hilde Lea Lein
Norwegian University of Science and Technology NTNU