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A kind of continuous exfoliation preparation method of graphene sheet

A graphene sheet and peeling device technology, applied in graphene, nano-carbon and other directions, can solve the problems of uncontrollable reaction by-products, difficult recovery of reaction waste liquid, immature development process, etc., to relieve environmental pressure and low cost , the effect of avoiding the use of toxic reagents

Active Publication Date: 2022-07-29
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] There are some unavoidable problems in the above methods, such as: large amount of oxidant, uncontrollable reaction by-products, long consumption time, difficult recovery of reaction waste liquid
Although the preparation of graphene by different methods has become a new hotspot, there are some problems in the methods, and the development process is not yet mature. Therefore, further fine exploration and research are needed for the preparation of graphene.

Method used

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  • A kind of continuous exfoliation preparation method of graphene sheet
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  • A kind of continuous exfoliation preparation method of graphene sheet

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Experimental program
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Effect test

Embodiment 1

[0042] A kind of continuous exfoliation preparation method of graphene sheet, comprises the steps:

[0043] (1) make as figure 1 The continuous peeling device shown, the continuous peeling device includes a roller 1, a single roller column 2, a speed change mechanism 3, a driving unit 4, a lifting mechanism 5 and a temperature control unit 6,

[0044] The drive unit 4 is connected to the single roller column 2 through the speed change mechanism 3 to drive the single roller column 2 to rotate, and the lifting mechanism 5 is connected to the speed change mechanism 3 so that the speed change mechanism 3 drives the drive unit 4 and the single roller column 2 to move up and down,

[0045] The single roller column 2 is adapted to the inside of the roller 1, and the outer wall surface of the single roller column 2 has a thread 20, the thread pitch of the thread 20 is 3mm, the thread depth is 0.5mm, and the highest point of the thread 20 is connected to the inner surface of the roller...

Embodiment 2

[0055] A kind of continuous exfoliation preparation method of graphene sheet, comprises the steps:

[0056] (1) make as figure 1 The continuous peeling device shown, the continuous peeling device includes a roller 1, a single roller column 2, a speed change mechanism 3, a driving unit 4, a lifting mechanism 5 and a temperature control unit 6,

[0057] The drive unit 4 is connected to the single roller column 2 through the speed change mechanism 3 to drive the single roller column 2 to rotate, and the lifting mechanism 5 is connected to the speed change mechanism 3 so that the speed change mechanism 3 drives the drive unit 4 and the single roller column 2 to move up and down,

[0058] The single roller column 2 is adapted to the inside of the roller 1, and the outer wall surface of the single roller column 2 has a thread 20, the thread pitch of the thread 20 is 3mm, the thread depth is 0.5mm, and the highest point of the thread 20 is connected to the inner surface of the roller...

Embodiment 3

[0068] A kind of continuous exfoliation preparation method of graphene sheet, comprises the steps:

[0069] (1) make as figure 1 The continuous peeling device shown, the continuous peeling device includes a roller 1, a single roller column 2, a speed change mechanism 3, a driving unit 4, a lifting mechanism 5 and a temperature control unit 6,

[0070] The drive unit 4 is connected to the single roller column 2 through the speed change mechanism 3 to drive the single roller column 2 to rotate, and the lifting mechanism 5 is connected to the speed change mechanism 3 so that the speed change mechanism 3 drives the drive unit 4 and the single roller column 2 to move up and down,

[0071] The single roller column 2 is adapted to the inside of the roller 1, and the outer wall surface of the single roller column 2 has a thread 20, the thread pitch of the thread 20 is 3mm, the thread depth is 0.5mm, and the highest point of the thread 20 is connected to the inner surface of the roller...

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Abstract

The invention discloses a continuous exfoliation preparation method of graphene sheets. The present invention adopts a single-roller continuous peeling process method. The raw materials are added from the feeding port, and after peeling for a period of time, the product flows out from the discharging port to realize continuous exfoliation of graphite, that is, feeding-stripping-discharging-refeeding- The whole process of peeling-re-discharging is continuous, and the present invention breaks the shortcoming that the traditional method needs to be shut down for both feeding and discharging (such as the preparation of graphene by ball mill peeling), and greatly shortens the technological process. The invention has simple operation and high efficiency, and the selected adhesive has low cost and non-toxicity, provides a new process method for large-scale production and preparation of graphene, and has important application value. The adhesive formula proposed by the invention is green and safe, the post-processing is very convenient, the use of toxic reagents is avoided, the environmental pressure is relieved to a certain extent, and the difficulty of mass production of graphene at the present stage and the treatment of waste liquid in the preparation process can be effectively solved. Difficult questions.

Description

technical field [0001] The invention belongs to the technical field of graphene preparation, and in particular relates to a continuous exfoliation preparation method of graphene sheets. Background technique [0002] In recent years, with the rapid development of science and technology, the demand of human beings in the field of new energy has gradually increased, and the search for a new type of material with excellent properties has gradually become a research hotspot. Since the first preparation of single-layer graphene in the laboratory of the University of Manchester in 2004, graphene has been favored by many scientific researchers due to its excellent electrical properties, magnetic properties, thermal properties and other characteristics, and related research results have also sprung up. emerge like. [0003] Graphene is made of carbon atoms sp 2 The two-dimensional sheet structure formed by hybridization. To be precise, graphene is a single-carbon atomic layer mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/19
CPCC01B32/19
Inventor 陈国华郝雅鸣刘海龙
Owner HUAQIAO UNIVERSITY
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