The discovery holds potential for various applications, including self-cleaning surfaces and de-icing glass, in which droplet-repellent surfaces are useful.
A duck’s back is not the only slippery surface water is prone to slide off of. Researchers have developed a new method of coating surfaces in a liquid-like layer to make them extra slick. The Finland-based research team, led by Sakari Lepikko of Aalto University, developed a reactor to create the surfaces, which are referred to as self-assembled monolayers, or SAM.
In this case, the process involved spraying the silicon surface with a chemical known as octyltrichlorosilane to create the liquid-like surface. By varying the amount of time the silicon material was in the reactor, the researchers could make the SAM more or less slippery. During testing of these surfaces, the team found that both short growth times and longer growth times produced the slickest surfaces when compared to intermediate growth times.
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