Optimization of Energy Conservation and Energy Conversion of Super Hydrophobic Surfaces
Keywords:
Micro/Nano Channel, Surfaces, Energy Conservation, Energy ConversionAbstract
The self-cleaning surfaces are of interest in various applications, e.g., self-cleaning windows, windshields, exterior paints for buildings, navigation-ships and utensils, roof tiles, textiles, solar panels and reduction of drag in fluid flow, e.g. in micro/nano-channels. Also, super hydrophobic surface can be used for energy conservation and energy conversion. When two hydrophilic surfaces come into contact, condensation of water vapour from environment forms meniscus bridges at asperity contacts which lead to an intrinsic attractive force. This may lead to high adhesion. Therefore, super hydrophobic surfaces are desirable. The hydrophobic interaction is mostly an entropic effect originating from the disruption of highly dynamic hydrogen bonds between molecules of liquid water by the non-polar solute. In this paper, method has been developed and applied to produce superhydrophobic surfaces by using low surface energy materials/coatings on hierarchical structure of surface with micro and nano scale roughness. Using the above method, 4 numbers each of hierarchically structured and fluorinated/chlorinated SS430 specimen were prepared.
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