Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of lipophilic graphene and preparation method thereof

A technology of graphene and lipophilicity, which is applied in the field of lipophilic graphene and its preparation, and can solve problems such as poor dispersion

Active Publication Date: 2018-10-30
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, graphene, as a nanomaterial with good lubricating properties, cannot be used as a good lubricating oil additive due to its poor dispersion in oil.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of lipophilic graphene and preparation method thereof
  • A kind of lipophilic graphene and preparation method thereof
  • A kind of lipophilic graphene and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a method for preparing lipophilic graphene, which includes the following steps:

[0034] Add expanded graphite powder, oleic acid and stearic acid to the ball milling tank, where 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 milling tank is closed;

[0035] Inject CO through the inlet pipe on the ball mill tank 2 For gas, adjust the intake air 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), wait until the temperature reaches 40°C, set the speed to 300rpm, and the reaction time for 2 hours;

[0037] After the reaction is over, the pressure is relieved through the gas release valve to the gauge pressure in the tank to be 0MPa, and the reaction device (schematic diagram as figure 1 Shown) After cooling to room ...

Embodiment 2

[0044] This embodiment provides a method for preparing lipophilic graphene, which includes the following steps:

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

[0046] Inject CO through the inlet pipe on the ball mill tank 2 For gas, adjust the intake air 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 speed to 300rpm, and the reaction time for 2 hours;

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

Embodiment 3

[0051] This embodiment provides a method for preparing lipophilic graphene, which includes the following steps:

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

[0053] N is passed through the inlet pipe on the ball mill tank 2 , Adjust the intake air volume to control 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), wait until the temperature reaches 35°C, set the speed to 900rpm , The reaction time is 4 hours;

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

[00...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 a lipophilic graphene and a preparation method thereof, and belongs to the technical field of graphene materials. Background technique [0002] Since graphene was discovered in 2004, it has been generally favored by researchers from the fields of physics and materials. Graphene is a kind of sp 2 Hexagonal flat film with honeycomb lattice composed of hybrid orbitals. Although graphene is only one layer of carbon atoms thick and is the thinnest of the known materials, it is very strong and hard. Graphene is also the most conductive material known. 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, and energy storage. However, the coagulation of graphene in water has seriously affected the application of gra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/19C10M125/02
CPCC01P2002/01C01P2004/04C10M125/02
Inventor 李永峰陈卓杨帆
Owner CHINA UNIV OF PETROLEUM (BEIJING)