Heat conduction oil based on modified graphene and preparation method thereof

The invention discloses heat conduction oil based on modified graphene and a preparation method of the heat conduction oil. The heat-conducting oil comprises the following components: modified graphene, a heat-conducting oil base solution, a metal deactivator and a heat-conducting oil additive, the specific preparation method comprises the following steps: preparing hydroxyl-rich graphene oxide byan optimized oxidation reaction method, reacting the hydroxyl-rich graphene oxide with alkyl phosphate or alkyl phosphite compounds to obtain modified graphene, and carrying out ultrasonic-assisted shearing dispersion on the modified graphene and other components according to a certain ratio. The heat-conducting oil based on the modified graphene is uniform in dispersion and good in stability, the oxidation resistance of the heat-conducting oil is improved while the heat conduction efficiency of the heat-conducting oil is improved, the service life of the heat-conducting oil is prolonged, andenergy conservation and c