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A team of American engineers has developed an innovative material that repels virtually any liquid. With his with help you can save car owners from having to wash often a car or, for example, to produce technological workwear for chemical workers. Material received superomniphobic, repels a wide range of fluids, including non-Newtonian fluids (shampoos, creams, clay, ink for printer, etc.). Superomniphobic designed by engineers University of Michigan, composed of a mixture of rubber and plastic particles, as well as nanocubes containing carbon, fluorine, silicon and oxygen. The coating is applied to the surface by a method known as electrospinning. Like drops of water sliding down the surface of lotus leaves covered with tiny hairs that create air pockets, nanocovering creates a structure that consists of 95–99% of such air pockets. “Usually when two material approaching each other, their positive and negative charges are attracted and as soon as the liquid in contact with a solid surface, it begins to spread over her. We drastically reduced the interaction between the surface and a drop, “said the assistant professor of the Department of Materials Science and Engineering, chemical technology and high molecular science and technology University of Michigan Enish Tuteya. He and his colleagues checked in laboratories over a hundred fluids and found only two that were able to penetrate the coating. These were chlorofluorocarbons – chemicals used in refrigerators and air conditioners. The surface of a superomniphobic coated plate repelled coffee, soy sauce, vegetable oil and even sulfuric acid. Besides protect cars from raindrops and splashes from under the wheels can be used to create dirt-repellent clothing, and also waterproof paints that will reduce the resistance of ships while moving in water. According to the executive Vice President of the Nanotechnology Society of Russia Denis Andreiuk, hydrophobic coatings are systematically created last hundred years, and the last 50 years have been very successful. “A good result of scientists is that out of a hundred fluids, only two pass through designed coating. They use one of the modifications substances that are used to siliconize such surfaces like surgical instruments and glass. That is this The approach has long been known. Most hydrophobic coatings work on the basis of the “lotus effect” or they repel water in a way as wax does because of the greasy surface, but in this case the fabric does not “breathe”. The last five years have firmly entered into practice instrumental methods for surface research that greatly simplify and reduce the cost of creating hydrophobic coatings, “- added Mr. Andreiuk. Head of Youth scientific and technical center “Alexander Olikevich said that already Today there are inexpensive hydrophobic coatings, but they short-lived. “Modern microscopes allow you to see how liquid interacts with a solid surface, and improve the properties of water-repellent material, so they became so popular. In the near future, such materials will be able to make cheaper, “Mr. Olikevich is convinced.
Water Time Russia
