Preparation method for graphene fluoride colloidal material

A technology of fluorinated graphene and a production method, which is applied in the field of production of fluorinated graphene rubber compound, can solve the problems of multiple side reactions and side reaction products, the high danger of fluorine gas, influence the quality of fluorinated graphite, etc. The effect of low cost, low price and high safety

Inactive Publication Date: 2015-05-20
QINGDAO WEITENG GRAPHITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the preparation method involving fluorine gas, there are great risks in the production, transportation and use of fluorine gas, and there are many side reactions and side reaction products, which greatly affect the quality of fluorinated graphite

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of preparation method of fluorinated graphene sizing material, it is characterized in that, described preparation method comprises the steps:

[0020] (1) Preparation of nano-graphite carbon powder: In a dry container, add 2% of a coating agent composed of 0.2% lignin, 0.2% oleic acid, 0.3% fish oil and 0.1 nano-silica to the nano-graphite carbon sol. High temperature 65°C, until the sol is completely dry, then grind the flake or large granular material into fine powder;

[0021] (2) Fluorination reaction: add a mixture of potassium hexafluoromanganate and antimony pentafluoride with a molar ratio of 1:2 to the nano-graphite carbon powder according to the mass ratio of 50:1, and control the reaction in the presence of high-purity nitrogen The pressure is 0.8MPa, the heating rate is 10℃ / min, the temperature is raised to 500℃, and the reaction is 3h;

[0022] (3) Preparation of fluorinated graphite powder: Soak the obtained product in a mixed acid with a molar rat...

Embodiment 2

[0026] A kind of preparation method of fluorinated graphene sizing material, it is characterized in that, described preparation method comprises the steps:

[0027] (1) Preparation of nano-graphite carbon powder: In a dry vessel, add 3% of a coating agent consisting of 0.2% lignin, 0.2% oleic acid, 0.3% fish oil and 0.1 nano-silica to the nano-graphite carbon sol. The high temperature is 70°C, until the sol is completely dry, and then the material in the form of flakes or large particles is ground into fine powder;

[0028] (2) Fluorination reaction: add a mixture of potassium hexafluoromanganate and antimony pentafluoride with a molar ratio of 1:2 to the nano-graphite carbon powder according to the mass ratio of 50:1, and control the reaction in the presence of high-purity nitrogen The pressure is 0.8MPa, the heating rate is 10℃ / min, the temperature is raised to 550℃, and the reaction is 2h;

[0029] (3) Preparation of fluorinated graphite powder: Soak the obtained product i...

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PUM

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Abstract

The invention discloses a preparation method for a graphene fluoride colloidal material, and is characterized in that the preparation method comprises the following steps: (1) preparing a nano graphite carbon powder, (2) carrying out a fluorination reaction, (3) preparing a graphite fluoride powder, (4) carrying out ball milling dispersion for preparing slurry, and (5) obtaining the graphene colloidal material. The preparation method solves the problems of easy agglomeration and difficult dispersion in nano graphite carbon powder preparation, potassium hexafluoromanganate and antimony pentafluoride have stable properties at the room temperature, so that the security is high, and raw materials are low in price; an organic solvent can be recycled, the production process is environmentally friendly and non-pollution, and the graphene colloidal solution has the advantages of excellent dispersity, excellent stable performance and high utilization value. The preparation method has the advantages of being simple in process method, low in production cost, suitable for industrialized production and the like.

Description

technical field [0001] The invention belongs to the technical field of graphene production, and in particular relates to a production method of a fluorinated graphene compound. Background technique [0002] The structure of graphene is very stable. So far, researchers have not found any missing carbon atoms in graphene. The connection between each carbon atom in graphene is very flexible. When an external mechanical force is applied, the surface of the carbon atom bends and deforms, so that the carbon atoms do not need to be rearranged to adapt to the external force, and the structure remains stable. This stable lattice structure gives carbon atoms excellent electrical conductivity. Electrons in graphene move through their orbits without being scattered by lattice defects or the introduction of foreign atoms. Because the interatomic force is very strong, at room temperature, even if the surrounding carbon atoms collide, the electrons in graphene are disturbed very little. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/00
Inventor 陶岩华
Owner QINGDAO WEITENG GRAPHITE
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