▎ 摘　　要

NOVELTY - Grease comprises 60-120 pts. wt. silicone oil, 0.1-30 pts. wt. graphene, 0.1-5 pts. wt. silane coupling agent and supercritical carbon dioxide (CO2). The supercritical CO2 makes the pressure inside the pressure tank 10-100 atm. USE - Grease used for live working robot wire clamp contact parts. ADVANTAGE - The grease prevents the surface of the electrical connection fittings from being damaged by the continuous temperature rise and heating, has the performance that the contact resistance decreases when the ambient temperature rises, has simple preparation method, strong operability, high storage stability, sprayed directly on site, and improves the safety and stability of grid operation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a grease, which involves: (A) placing graphene, silicone oil and silane coupling agent at 100-160 degrees C; (B) kneading under the condition of -0.05 to-0.09 megapascal (MPa) for 2-3 hours to obtain semi-finished products, and then grounding 3-5 times with three rollers; (C) placing the semi-finished product after the above three-roller grinding in the tank; (D) injecting supercritical carbon dioxide until the pressure in the tank reaches 10-100 atm; and (E) preparing a grease.