The new use of static electricity: friction fabric can light up the LED lamp

I don't know if you like me, winter is afraid to touch a metal object, because the sudden crackling always hit me impossible to guard against static electricity. According to the Tencent digital news, is the brother of electrostatic is not very popular, and now finally researchers found new uses -- they have invented a new type of cloth, can beat to generate enough electricity to light up, even small LED lights.

This special cloth inventor is Professor Han Guocheng, Professor of materials science at the University of Hong kong. According to him, this new type of fabric actually contains two kinds of materials, one is silver plated fiber material, and the other layer is coated with poly two siloxane Zinc Oxide nanorods. Some of our daily activities will allow the two layers of friction between the material to produce the use of electrostatic.

In fact, the main principle and the "nature" of our junior high school science has silk friction glass will play a similar power. By friction, electrons can be exchanged between the two materials, and then the positive and negative poles are generated. When the two materials are separated, a small current is generated.

One of the challenges faced by Professor Kim and his team is to find the best material for friction electrification, and finally they chose the two materials mentioned above. By four layers, these materials can produce a maximum 170V voltage and a current of 120 a (A). The tester through the friction sleeve in the shirt sleeves of this cloth successfully lit six embedded LED lights, according to reports, its power can also light a small LCD screen, as well as remote control car keys.

Although the use of this new material generation technology also has the very big limitation, such as the current is very weak, is unlikely to use the low permeability of the material to make clothes, but does not rule out future we can find an effective method of collecting charge generated by friction, and the charge stored in the emergency battery pack, for the special case the temporary use of may.

For more information about LED, please click on China LED network or pay attention to WeChat public account (cnledw2013).