Self Cleaning Metal Repels Water and Decay

Self+Cleaning+Metal+Repels+Water+and+Decay

popscience.com

Water often damages metals, causing rust, wear and decay. Thanks to an innovative laser process, however, metal is getting its revenge. University of Rochester scientists, Chunlei Guo and Anatoliy Vorobyev, have developed a technique using extremely precise laser patterns that renders metals superhydrophobic: in other words, incredibly resistant to the effect of corrosion, reported cnn.com

With this materials manufacturers can create water-resistant electronics, planes that do not  need to be de-iced, and of course non-stick pans.

“Our structure sort of mimics, in some way, this natural arrangement of the lotus leaf,” co creator Chunlei Guo stated.

“We worked with a variety of materials — not just metal but semiconductors, glass, other things,” he said. Even on a vertical surface, “the effect was very strong. If I drop a drop of water on the bottom of this surface, it would actually shoot up against gravity, uphill. So that really motivated us to look into this reverse process,” Guo added.

 Many super-hydrophobic coatings out there that can quickly and effectively repel water and other liquids to keep metals rust-free and t-shirts pristine. The problem, however, is that they rely on chemicals that can eventually wear off and leave the underlying material at the mercy of the elements, stated gizmag.com