▎ 摘　　要

NOVELTY - Graphene modification comprises (1) preparing raw materials including expanded graphite and industrial aqueous ammonia, (2) adding expanded graphite into the reactor, and simultaneously injecting industrial aqueous ammonia into the reactor, and stirring and mixing, (3) injecting all the industrial aqueous ammonia remaining into the reaction kettle and stirring and mixing, uniformly dispersing expanded graphite in the industrial aqueous ammonia to obtain a mixture of expanded graphite and industrial aqueous ammonia, (4) using an electromagnetic device to electromagnetically treat the obtained mixture, magnetizing the ferromagnetic metal impurities in the mixture, (5) subjecting mixture to strong magnetic filtration through a strong magnetic filter, removing the magnetized metal impurities in the mixture, and (6) injecting the mixture into an oscillating microwave processor for oscillation and microwave radiation treatment to obtain a modified graphene additive. USE - The method is useful for graphene modification. ADVANTAGE - The method uses less raw materials, has simple preparation process and time-saving, and can be completed with only general device, which greatly reduces the cost. DETAILED DESCRIPTION - Graphene modification comprises (1) preparing raw materials including 8-15 pts. wt. expanded graphite and 45-60 pts. wt. industrial aqueous ammonia, (2) adding all the expanded graphite into the reactor, and simultaneously injecting industrial aqueous ammonia into the reactor, and stirring and mixing for 0.5-1 hour, where the weight of the industrial aqueous ammonia is 1-1.5 times of all expanded graphite, (3) injecting all the industrial aqueous ammonia remaining into the reaction kettle and stirring and mixing for 1-2 hours, uniformly dispersing expanded graphite in the industrial aqueous ammonia to obtain a mixture of expanded graphite and industrial aqueous ammonia, (4) using an electromagnetic device to electromagnetically treat the obtained mixture, magnetizing the ferromagnetic metal impurities in the mixture, where the magnetic induction intensity of the electromagnetic treatment is 15-120 Gs, and the time is 0.3-0.5 hours, (5) subjecting mixture to strong magnetic filtration through a strong magnetic filter, removing the magnetized metal impurities in the mixture, where the magnetic induction intensity of the strong magnetic filtration is 200-350 Gs, and the time is 0.3-0.5 hours, and (6) injecting the mixture into an oscillating microwave processor for oscillation and microwave radiation treatment for 1.5-3 hours to obtain a modified graphene additive.