Graphene will become even more pliable and flexible. Free Technical Library News

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Graphene will become even more pliable and flexible

08.02.2019

Over the past few years, specialists in the field of chemical and material engineering have continued to actively explore the possibilities and properties of graphene, a unique lightweight and superconducting material, in an attempt to make it more pliable for changing its shape. This priority is paramount, because if scientists succeed in flexibly reshaping graphene layers, they will open up a brave new world of material art and chemistry - which is why scientists from Northwestern University in the United States presented their new development of an unusually pliable and flexible graphene layer composed of graphene oxide.

Graphene oxide is the starting point for the graphene material itself and includes oxygen, hydrogen and carbon atoms - and already in the process of its transformation it acquires mostly carbon properties, which makes it an excellent conductor of electricity and an unusually strong material. However, in order to make the atomic lattice of such a layer of graphene oxide more flexible, American scientists tried to apply various connecting agents to it, such as plastic and metal - and despite the fact that some of them actually made the shape of graphene more flexible and pliable, nevertheless, they influence its final properties, somewhat reducing them.

After a long test session, the experts came to the conclusion that it is possible to easily and quickly change the shape of the graphene oxide layer using ordinary water, applying it to the most concentrated areas of the atomic lattice layer - thus, in a gradual process, it becomes possible to flexibly and carefully change the lattice and the final form of graphene oxide.

At the same time, a more precise and flexible transformation of graphene into various other lattices and shapes is carried out - thanks to which it can be quickly and understandably used in a wide variety of fields of activity. So far, experts continue to work on improving their chemical formula of graphene oxide, so we should expect new results soon.

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Outboard motor for wheelchair 19.10.2001

A wheel with a steering wheel like a bicycle and an electric motor is hung on almost any wheelchair in 10 minutes, turning it into a self-propelled one. The whole set-top box, together with the battery, weighs 18 kilograms.

The motorized chair is able to move off-road at a speed of about 18 kilometers per hour, on flat asphalt the speed is one and a half times higher. On a single charge, the chair travels 25 - 30 kilometers, and recharging the battery takes 4 hours.

By the way, the English invalid Vincent Ross invented this unit, at first only for himself, and now serial production has also been established.

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