A graphene roll peeling system

Abstract

The invention belongs to the technical field of graphene production, and specifically relates to a graphene roll peeling system. An extrusion cylinder is arranged in a closed cylinder, and a cam group is rotated and installed on an upper base plate through a rotating rod. An extrusion cylinder is arranged in the extrusion cylinder. The extrusion roller rotates and is installed on the upper bottom plate; the three cam groups cooperate with each other to make the extrusion roller contact the inner wall of the extrusion cylinder; graphite particles are transported from the feed port to the extrusion cylinder, and the motor drives the extrusion roller to rotate. At the same time, the controller uses the motor to make the three cam sets rotate together, and the inner wall of the extrusion cylinder is in full contact with the extrusion roller, thereby improving the stripping efficiency of graphene; the stripped graphene is collected through the filter hole and the discharge port ; The present invention is mainly used for preparing graphene, which can fully grind graphene, and simultaneously meet the size of fine particle graphene can be filtered in time; improve the production efficiency of graphene.

Description

technical field [0001] The invention belongs to the technical field of graphene production, in particular to a graphene roll peeling system. Background technique [0002] Graphene is a sheet-like two-dimensional material in which carbon atoms form a hexagonal honeycomb lattice structure with sp2 hybrid orbitals. This special two-dimensional structure causes graphene to exhibit various special properties, such as high strength, high hardness, high thermal conductivity and electrical conductivity; due to these structural characteristics and performance characteristics, graphene is known as the Layers, transparent bendable electronic components, ultra-large capacitors, etc. are the most promising potential materials. What needs to be added is that, strictly speaking, graphene is a single-layer sheet; however, due to the difficulty of preparing single-layer graphene, oligolayer graphene with similar properties is generally also classified into the category of graphene. Inside....

AI Technical Summary

Problems solved by technology

Among them, conventional grinding refers to grinding graphite in a mortar grinder. The disadvantages are: first, the shear force comes from the friction force caused by pressure, and the excessive pressure makes it difficult for the motor to drive the pestle body to rotate, which limits the shear force. If the pressure is too small, it is difficult to shear and peel off; secondly, the shearing efficiency is low, and increasing the amount of pressed powder will lead to insufficient shearing force of some powders; thirdly, the uneven pressure exerted by the pestle on the graphite is prone to overgrinding, and the Applying pressure to graphite will cause structural defects in graphene, and even shatter graphene after exfoliation, so that the edge of the obtained product will have burrs and the crystal size will be small

The graphene grinding and stripping device can realize large-scale stripping of graphene, but the graphene prepared by this technical scheme has impurities with too large particles, and this technical scheme cannot grind the graphene at the edge of the annular storage tank, resulting in graphite Insufficient grinding of alkenes limits the invention

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