Graphene roll stripping system

Abstract

The invention belongs to the technical field of graphene production, in particular to a graphene roll stripping system. A squeeze cylinder is arranged in a closed cylinder, cam sets are rotatably mounted on an upper bottom plate through a rotating rod, a squeeze roller is arranged in the squeeze cylinder, and the squeeze roller is rotatably mounted on the upper bottom plate; the three cam sets cooperate with each other such that the squeeze roller is in contact with the inner wall of the squeeze cylinder; graphite particles are transported from a feed port to the squeeze cylinder, a motor drives the squeeze roller to rotate, at the same time, a controller controls the three cam sets to cooperatively rotate through the motor, and the inner wall of the squeeze cylinder is in full contact with the squeeze roller, thereby improving the stripping efficiency of graphene; and the stripped graphene is collected through filter holes and a discharge port. The system is mainly used for preparinggraphene and can be used for fully grinding the graphene, and at the same time, the fine graphene particles meeting the size can be filtered in time, so that the production efficiency of graphene is improved.

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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