Home » Materials Science » Revolutionary new materials!

 
 

Revolutionary new materials!

 

Steel and plastic will soon give way to the new revolutionary materials – water-resistant, heat-proof and extremely durable.

Clothes that do not stain, and therefore does not require regular washing, a frying pan, the surface of which has never really burnt, propellant tanks, which do not stick to aggressive components – all this will soon be possible thanks to the opening of American Scientists, which has become one of the biggest scientific sensation of the year.

Group of chemists led by Garrett McKinley of the Massachusetts Institute of Technology has developed a network of ultra-thin polymer fibers woven in a special way. This network can be applied to any surface and make it nonwettable for all liquids.

At a press conference on the opening, the researchers covered the chemical composition of the composition of the quill pen and demonstrated how, after that, it was to push pentane – a light liquid hydrocarbon. The choice is so exotic liquid was not accidental – can repel water, many of the known materials. For example, on their own goose feathers that gave rise to the proverb, “like water off a duck’s back.” At the same time, simple organic compounds that make up, for example, gasoline or kerosene can effectively wet virtually any surface, even the legendary Teflon.

3
During the experiments, it was found that the capacity of the surface in contact with water plays a role, and its geometry associated with the action of capillary forces, says McKinley. Therefore, the essence of the new technology is that with the help of microscopic polymer network attached to the surface of a certain texture – a pattern of hillocks. Correctly selected angles at which water moves between the “roughness” of the surface, the researchers made sure that the texture is always stored the small islands of the air under a layer of liquid. In other words, the conditions under which are the capillary forces do not allow the liquid to moisten the surface completely.

The technique has been tested on the silicon wafers used in microelectronics. They then set about creating a coating that can be applied to any surface. As its main element are the threads methacrylate and polyhedral molecules fluorinated organic compounds, the layout of which is created by an electrostatic twisting.

According to study leader Gareth McKinley, the invention may be used to protect the walls of the fuel tanks, jet engines from the harmful effects of aggressive fuel components. This significantly extends the life of the fuel tanks and reduces the cost of operating aircraft. However, a more significant application development will receive in another area – much closer to ordinary consumers. According to the designers, clothes, covered with a polymer network, it will be very hard to get dirty and very easily washed off.

According to experts, the invention of American Scientists has a place in the list of unique materials, which will soon enter firmly into use, along with other revolutionary developments in recent years – carbon nanotubes, aerogels, metal foam and “smart” fabrics.