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For more information on this presentation, please contact Tamal Barman.
The Advanced Materials Research Group (AMRG) would like to welcome you to attend the following seminar:
Ice formation and accumulation causes great concerns for many industries including infrastructure, transport, powerlines, wind turbines and offshore oil platforms etc. as it reduces the operational efficiency and may also lead to disaster. Applying icephobic coatings on the substrate surface is believed to be a promising solution as it can minimize the accumulation of ice and prompt the removal of the ice from the surface. Many polymeric coating have been proposed for icephobic application but it is still a challenge to identify a suitable coating system to provide satisfactory ice protection. In the present work, a modified polyfluoroacrylate (PFA) has been synthesized with a fluorine content of 33 weight % and deposited on anodised aluminium surface which can substantially reduce the surface energy and improve the durability. The anodised surface of Al alloy provides the desirable surface roughness with average Ra value of 1.77 µm and offers better adhesion with the PFA film. Superhydrophobicity with water contact angle (WCA) of 162.5° and contact angle hysteresis (CAH) of 8° can be achieved on the deposited film. De-icing tests are performed at environmental temperature of -5 °C by electrical heating method. And 20% decrease in energy consumption during the de-icing process is observed with the use of synthesized PFA film. It is suggested that the modified PFA coated anodised Al surface demonstrates superhydrophobicity and better energy efficiency in ice removal, showing good potential for icephobic applications.
Faculty of EngineeringThe University of Nottingham University Park Nottingham, NG7 2RD
email:AdvMaterials@nottingham.ac.uk