A kind of graphene separation device

Abstract

The invention discloses a graphene separation device, which relates to the field of graphene separation, and comprises a device body. A connecting plate is arranged inside the device body, and a cooling mechanism is arranged on the top of the connecting plate. One side of the connecting plate is provided with a The cutter head, and the bottom of the cutter head is connected with a collecting mechanism. The invention uses the cooling mechanism, cooling block, liquid nitrogen tank, pump body, splitter plate, splitter hole, cooling cavity and heat exchange plate to transport the liquid nitrogen in the liquid nitrogen tank to the splitter plate of the cooling block by using the pump body , liquid nitrogen will vaporize when it contacts with air, and the generated low-temperature gas enters the cooling cavity evenly through the split holes on the splitter plate, and the heat exchange plate quickly exchanges heat with the low-temperature gas in the cooling cavity to quickly The cooling of the cutter head is realized, thereby reducing the damage to the separated graphene and the life of the cutter head itself caused by the excessive heat of the cutter head during the processing process, and the use of liquid nitrogen to cool down is green and environmentally friendly.

Description

technical field [0001] The invention relates to the field of graphene separation, in particular to a graphene separation device. Background technique [0002] Graphene has excellent optical, electrical, and mechanical properties, and has important application prospects in materials science, micro-nano processing, energy, biomedicine, and drug delivery. It is considered to be a revolutionary material in the future. Physics at the University of Manchester Scientists Andre Geim and Konstantin Novoselov successfully separated graphene from graphite by micromechanical exfoliation, so they jointly won the 2010 Nobel Prize in Physics, common powder of graphene The production method is mechanical stripping method, redox method and SiC epitaxial growth method, and the thin film production method is chemical vapor deposition method (CVD). [0003] The mechanical exfoliation method is to use the friction and relative motion between the object and the graphene to obtain a graphene thin...

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Problems solved by technology

[0003] The mechanical exfoliation method is to use the friction and relative motion between the object and the graphene to obtain a graphene thin layer material. This method is simple to operate, and the obtained graphene usually maintains a complete crystal structure, but the existing mechanical separation When the graphene device is separated, the heat accumulated in the cutter head will damage the quality of the separated graphene and affect the service life of the cutter head itself

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