1. “Super-Hydrophobic” Nanocoatings By David Stevenson

2. Objectives Super Hydrophobic Nanocoatings provide waterproofed surfaces to smartphones, computers, electronic devices and textiles. Increasing the contact angles of the surface helps repel water. Textured coatings such as cylinders or cones shows that air bubbles get trapped within the surface forcing the water to ball up into drops.

3. Nanotechnology to repel liquids “Hydrophobic” refers to the extreme fear of water and other liquids. The surface of the lotus leaf “is textured with 3-10 micron-sized hills and valleys that are covered by nanometer-sized particles of a hydrophobic wax-like material.” Contact angles greater than 150 degrees, at nanoscale increases the surface tension of water making it impossible to wet the surface. Hydrophilic, non coated

4. Plasma-enhanced Chemical Vapor Deposition Plasma-enhanced chemical vapor deposition (PECVD) is a process used to deposit materials to thin films from a gas state to a solid state on a substrate. Known Bases Manganese Oxide Polystyrene (MnO 2 /PS) Zinc Oxide Polystyrene (ZnO/PS) nano-composite Carbon nano-tube structures.

5. Applications Nanocoatings provide resistance to corrosion which are ideal for electronic components. Opticians apply nanocoatings to eyeglasses to make them easier to keep clean and harder to scratch. Stain-resistant clothing and fabrics. Combined Nanocoatings with larger (macroscopic) structures that increase the surface area of a liquid. Which makes it bounce off faster - by shattering each one into asymmetric pieces. Future Plans

6. Work Citied Shirtcliffe, Neil, McHale, Glen and Newton, Michael. “The superhydrophobicity of polymer surfaces.” Journal of Polymer Science Part B: Polymer Physics, (2011): 1203-1217. Lei Zhai, Fevzi C¸ Cebeci, Robert E. Cohen, Michael Rubner, “Stable Superhydrophobic Coatings from Polyelectrolyte Multilayers.” Journal of American Chemical Society, (2011): 1-5. Hai Phan, Nadia Caney, Philippe Marty, Stéphane Colasson, Jérôme Gavillet. “Surface wettability control by nanocoating: The effects on pool boiling heat transfer and nucleation mechanism.” International Journal of Heat and Mass Transfer. (2009): 1-25. https://www.youtube.com/watch?v=6AfDPbppwGw http://drywired.com/