Tuesday, April 5, 2016

Scientists develop water free new materials water vapor does not stick

Scientists develop

  The dirt without carrying a Lotus leaf is a natural non-stick water "masters", it can rain but not steam. United States, Pennsylvania State University researchers have developed a new Nano-material do not even touch steam, truly "water free". According to the researchers, when liquid onto a surface, two things usually happen: one is the surface remains "locked" with a thin layer of gases, droplets floating on the gas, and do not touch surfaces: one, no gas between the two, droplet and the surface contact and is restricted or sticky on top.

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  Past development of Lotus Leaf-like waterproof materials to effect only in the first case, and now they have the material in the second case, to be able to work effectively. Incipio iPhone 6 Case

  "Lotus leaf surface hydrophobic completely depends on the liquid beneath a layer of gas, this gas can easily be damaged, so that its hydrophobic properties," Huang winning, Assistant Professor for research explains, "our study on the use of liquid lubricants to replace gas greatly improves the performance of surface repels the water. "

  In order to get the non-stick surface of the water, researchers using nanotechnology in Silicon processing nano-structure of "posts", then a layer of liquid lubricant poured into nano-structures, to reduce sliding drops the viscous forces. To measure performance, the researchers will surface inclined at 30, taking 5 l water droplets on the surface, let it slide. Test results confirm, even if no gas under the droplet, the surface can still be "water free", their hydrophobic properties far exceed a previous Bionic structure. INCIPIO iPhone 6 Plus Case

  First Dai Xianming pointed out that the authors of the paper, in addition to silicone materials, metal, glass, ceramic and plastic materials can also be used to design the classes do not touch water. In industry, this material is of great value, for example, can be used to improve the performance of power plant heat exchangers heat, prevents accidents caused wing icing and frosting.

  The study recently in the United States, published online in the journal ACS Nano.

[Article correction]

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Tags: Science and technology Design And anecdotes

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