Lipophilic graphene and preparation method thereof

A lipophilic, graphene technology, applied in graphene, petroleum industry, lubricating compositions, etc., can solve problems such as poor dispersion

Active Publication Date: 2017-02-22
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, graphene, as a nanomaterial with good lubricating properties, cannot

Method used

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  • Lipophilic graphene and preparation method thereof
  • Lipophilic graphene and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The present embodiment provides a kind of preparation method of lipophilic graphene, it comprises the following steps:

[0034] Expanded graphite powder, oleic acid and stearic acid are added to a ball mill jar, wherein the mass ratio of stearic acid to oleic acid is 3:5, and the mass ratio of expanded graphite powder to oleic acid is 10:1, and the ball mill jar is closed;

[0035] Introduce CO through the inlet pipeline on the ball mill tank 2 Gas, adjust the intake volume to control the pressure at 10MPa;

[0036] Set the reaction temperature to 40°C (the pressure in the tank will change during the heating process, adjust the outlet valve to keep the pressure at 10MPa), when the temperature reaches 40°C, set the rotation speed to 300rpm, and the reaction time is 2 hours;

[0037] After the reaction is completed, the gauge pressure in the tank is released to 0MPa through the release valve, and the reaction device (schematic diagram is as follows: figure 1 Shown) can ...

Embodiment 2

[0044] The present embodiment provides a kind of preparation method of lipophilic graphene, it comprises the following steps:

[0045] Add expanded graphite powder, oleylamine and petroleum ether into the ball mill jar, wherein the mass ratio of graphite powder to oleylamine is 10:1, petroleum ether is added at 1mL / (g graphite powder), and the ball mill jar is closed;

[0046] Introduce CO through the inlet pipeline on the ball mill tank 2 Gas, adjust the intake volume to control the pressure at 10MPa;

[0047]Set the reaction temperature to 50°C (the pressure in the tank will change during the heating process, adjust the outlet valve to keep the pressure at 10MPa), when the temperature reaches 50°C, set the rotation speed to 300rpm, and the reaction time is 2 hours;

[0048] After the reaction is finished, release the pressure through the vent valve until the gauge pressure in the tank is 0MPa, and the reaction device can be opened after cooling to room temperature under air...

Embodiment 3

[0051] The present embodiment provides a kind of preparation method of lipophilic graphene, it comprises the following steps:

[0052] Add flake graphite, oleylamine and petroleum ether to the ball milling jar, wherein the mass ratio of graphite to oleylamine is 10:1, petroleum ether is added at 1mL / (g graphite powder), and the ball milling jar is closed;

[0053] Inject N through the inlet pipeline on the ball mill tank 2 , adjust the air intake to keep the pressure at 4MPa; set the reaction temperature to 35°C (the pressure in the tank will change during the heating process, adjust the outlet valve to keep the pressure at 4MPa), when the temperature reaches 35°C, set the speed to 900rpm , the reaction time is 4 hours;

[0054] After the reaction is over, release the pressure through the release valve until the gauge pressure in the tank is 0 MPa, and the reaction device can be opened after cooling to room temperature under air conditions, and the product can be taken out; ...

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Abstract

The invention provides lipophilic graphene and a preparation method thereof. The method comprises the following steps that 1, after graphite powder, an additive and a liquid intercalation medium are added into a ball-milling tank, the ball-milling tank is sealed; 2, a gaseous intercalation medium is introduced into the ball-milling tank, the pressure is controlled at 4-12 MPa by regulating the gas intake of the gaseous intercalation medium, a ball-milling in-situ aided molecule intercalation reaction is conducted by increasing the temperature of the system to 35 DEG C-150 DEG C under the pressure, and after the reaction is finished, the lipophilic graphene is obtained.

Description

technical field [0001] The invention relates to lipophilic graphene and a preparation method thereof, belonging to the technical field of graphene materials. Background technique [0002] Since its discovery in 2004, graphene has been favored by researchers in the fields of physics and materials. Graphene is a carbon atom with sp 2 The hexagonal honeycomb lattice composed of hybrid orbitals is a planar film. Although graphene is only one carbon atomic layer thick and is the thinnest known material, it is extremely strong and rigid. Graphene is also the material with the best conductivity known so far. In addition, graphene has many excellent properties: such as high Young's modulus, thermal conductivity, huge specific surface area and so on. Due to the special properties of graphene, it has a wide range of applications in electronics, optics, magnetism, biomedicine, sensors, energy storage, etc. However, the coagulation phenomenon of graphene in water has seriously affe...

Claims

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Application Information

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IPC IPC(8): C01B32/19C10M125/02
CPCC01P2002/01C01P2004/04C10M125/02
Inventor 李永峰陈卓杨帆
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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