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Thursday, February 22, 2018

Engineers figured out how to make the wood stronger than steel

The technology that allows you to do of wood a material superior to steel in strength, were presented by the experts from the University of Maryland. Bulletproof coating of such wood would be pretty effective, while possessing a low cost.

photo: pixabay.com

At the initial stage, the creation of surprices reminiscent of wood manufacture of pulp — wood boiled in a solution of sodium hydroxide and sodium sulfite. After that the wood can effectively compress, and if it is to provide adequate pressure and gradually increase the temperature, the compression will lead to the formation of a huge set of hydrogen bonds between adjacent cellulose chains. Each of these relations is itself weak, but to break them all at the same time, as noted, is very difficult. As a result, the wood becomes ten times more rigid and nearly impervious to moisture, reports popmech.ru.

Experts note that the containers with high humidity, the thickness of the compressed wood increased by only 10 percent, and cover it with a layer of paint was allowed to fully eliminate this effect.

As a material for bullet-proof protective gear compressed wood Kevlar slightly inferior in quality, however economical it 20 times. Scientific work, which describes the properties of the heavy-duty wood, was published in the journal Nature.

In 2014, the Russian scientists have developed a material stronger than steel, based on the metal, which by itself is associated with the strength even to a lesser extent than wood. Experts from the National research technological University with nanospheres and nanotubes of boron nitride have learned to give the aluminum the characteristics of steel. As easy as aluminum, the material at the same time, is 25 times more durable.

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