Method for preparing graphene by continuous jet coating of liquid CO2 suspension of graphite powder

A technology of suspension and graphite powder, which is applied in the field of new material manufacturing, can solve the problems of small scale, dispersed human resources, and low level, and achieve the effect of simple application equipment, no production waste, and stable chemical properties

Pending Publication Date: 2019-11-26
董恬纲
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  • Application Information

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Problems solved by technology

For example, there are hundreds of units or institutions that research, develop and produce graphene in Shandong Province alone. At present, my country's graphene research and development and production are at the forefront of the world, but most of the research and development are scattered in human resources and small in scale. , low-level, self-contained, monotonous, and repetitive state of going hand in hand

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  • Method for preparing graphene by continuous jet coating of liquid CO2 suspension of graphite powder
  • Method for preparing graphene by continuous jet coating of liquid CO2 suspension of graphite powder

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Embodiment Construction

[0024] Below in conjunction with specific embodiment the present invention is described in further detail:

[0025] Such as figure 1 , figure 2 Shown: graphite powder liquid CO of the present invention 2 The method for preparing graphene by continuous spray coating of suspension includes: loading nanoscale graphite powder and liquid CO 2 Seal tank 1 and load liquid CO 2 Seal barrel 2, form the roller 7 of graphene diaphragm 9 and the roll shaft 8 of wrapping graphene diaphragm 9, the agitator 3 that reaches the lower part of seal pot 1 is attached on the seal cover of seal pot 1, and the side wall top one A feed port 4 is arranged on the side, and an output pipe 5 whose end is connected to a linear nozzle 6 is arranged on one side of the middle and lower part of the side wall. A feed inlet 4 is arranged on the upper side of the side wall of the sealed barrel 2, and an output pipe 5 whose end is connected to a linear spout 6 is arranged in the center of the bottom. The ro...

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Abstract

The invention discloses a method for preparing graphene by continuous jet coating of a liquid CO2 suspension of graphite powder. The method is characterized in that the physical characteristics of liquid CO2, such as ultralow viscosity, ultra-strong fluidity, ultra strong permeability and ultra strong adsorptivity are utilized, the liquid CO2 is blended with the graphite powder, obtained graphiteparticles are broken into a uniform free carbon atom suspension, and the smooth and flat surface of a roller is continuously jet-coated with the suspension to make carbon atoms complete transverse two-dimensional combining crystallization of the carbon atoms without the interference of up-and-down atom motion kinetic energy in order to form a graphene membrane. Compared with the prior art, the method of the invention has the advantages of mature applied technology, safety, environmental protection, simple manufacturing facility and low production cost; and the prepared graphene membrane has acontrollable width and an arbitrary length, has comprehensive and complete physicochemical properties and performances of graphene, and provides a widest possible prospect for the application of graphene.

Description

[0001] 1. Technical field: [0002] The invention belongs to the manufacture of new materials, specifically a graphite powder liquid CO 2 Suspension continuous spray coating method for preparing graphene. [0003] 2. Background technology: [0004] Graphene has been widely concerned and valued by the society for its outstanding advantages and performances in electricity, heat, mechanics, etc. A hot industry scrambling to develop. For example, there are hundreds of units or institutions that research, develop and produce graphene in Shandong Province alone. At present, my country's graphene research and development and production are at the forefront of the world, but most of the research and development are scattered in human resources and small in scale. , low-level, fragmented, monotonous, and repetitive state of going hand in hand. Producing results, producing products, and producing benefits have become common pursuit goals. The fashion trend of eager for quick success, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/184
CPCC01B32/184
Inventor 董兰田董恬纲
Owner 董恬纲
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