American scientists have developed a unique coating that repels virtually all liquids - from water to concentrated acids. In this case, the material passes 95% of the air, which makes it ideal for production nepachkayuscheysya clothing and chemical protective suits.The invention is based electrospinning method that allows for the liquids from polymeric fibers and high-precision forming of these complex structures. The current coating chemists have a mixture of polydimethylsiloxane and water-resistant nanokubikov consisting of carbon, fluorine, silicon and oxygen (the latter at the time were designed specifically for the Air Force).
In addition to the chemical composition of the important role played by the structure of the material. After a lot of calculations and experiments, the investigators were able to produce a membrane which repels any liquid, regardless of its physical properties and the angle of incidence.
As reported in an article published in the journal JACS, this is the first truly superomnifobny material that is equally effective repellent organic and inorganic materials with different polarity and viscosity. "Virtually any liquid immediately bounces off of this material without wetting it. Unlike many of our other coatings can not withstand substances with very low surface tension liquids - such as oils, alcohols, organic acids, organic bases, and solvents ", - says the head of the Anish Toots.
To verify scientists loaded aluminum sheets coated with new material in the vessel with concentrated hydrochloric acid and concentrated sodium hydroxide solution. Although both liquid easily corrode the metal sheets got absolutely no damage. In other experiments, the material is easily pushed coffee, soy sauce and vegetable oil. Researchers have tried more than one hundred and fluids found only two agents, which may soak their invention. Both belonged to the hlorftoruglevodam that are used in refrigerators and air conditioners.
With all these qualities the material flows of up to 95% of the air, which makes it ideal for the production of clothing and nepachkayuscheysya particularly persistent chemical protection suits. The technology can also be modified to create a unique water-resistant ink that will reduce the resistance of the hull motion and friction of the water.
