▎ 摘　　要

NOVELTY - Preparation of oil-soluble fluorinated graphene using supercritical carbon dioxide involves adding fluorinated carbon powder into the high pressure reaction kettle, adding dispersant and auxiliary intercalation agent into the high pressure reaction kettle as lubricating oil base oil, mixing graphite powder and fluorinated coke to form fluorinated carbon powder, pumping carbon dioxide into the autoclave (4), circulating carbon dioxide after the gas pressure in the autoclave reaches the preset value, relieving the pressure after circulating carbon dioxide, reducing the pressure quickly, so that the gas pressure in the autoclave is reduced to normal pressure, repeating the process so that the material in the autoclave undergoes multiple boosting and depressurization processes, controlling the number of layers of the prepared fluorinated graphene by controlling the number of boosting and depressurization, thereby obtaining oil-soluble fluorine for graphene. USE - Preparation of oil-soluble fluorinated graphene using supercritical carbon dioxide. ADVANTAGE - The method is non-toxic, cheap and easy to obtain, simple, mild, green and pollution-free, and cost-effective, and enables preparation of oil-soluble fluorinated graphene using supercritical carbon dioxide. DETAILED DESCRIPTION - Preparation of oil-soluble fluorinated graphene using supercritical carbon dioxide involves adding fluorinated carbon powder into the high pressure reaction kettle, adding dispersant and auxiliary intercalation agent into the high pressure reaction kettle as lubricating oil base oil, mixing graphite powder and fluorinated coke to form fluorinated carbon powder, where the dispersant is a fluorine-containing surfactant, pumping carbon dioxide into the autoclave after the temperature in the autoclave reaches the preset value, circulating carbon dioxide after the gas pressure in the autoclave reaches the preset value, where the gas pressure inside is 15-45 MPa, relieving the pressure after circulating carbon dioxide for 30-100 minutes, reducing the pressure quickly, so that the gas pressure in the autoclave is reduced to normal pressure, repeating the process so that the material in the autoclave undergoes multiple boosting and depressurization processes, controlling the number of layers of the prepared fluorinated graphene by controlling the number of boosting and depressurization for 10-100 times, thereby obtaining oil-soluble fluorine for graphene. The fluorocarbon mass ratio of the fluorinated graphene product is 0.8-1.1. The mass ratio of the peeling agent and the fluorinated carbon powder is (0.3-11):1. The mass ratio of the fluorinated carbon powder and the dispersant is (1:0.2)-(1:10). The mass ratio of the release agent to the lubricating base oil is 1.1.3-12. DESCRIPTION OF DRAWING(S) - The drawing shows a main view of the oil-soluble fluorinated graphene preparing process device. Carbon dioxide steel bottle (1) Cooling device (2) Carbon dioxide pump (3) Autoclave (4) Pressure control system (6) Pressure relief tank (7)