Preparation method of dopamine modified graphene insensitive doped nitramine oxidant

The invention relates to a preparation method of a dopamine modified graphene insensitive doped nitramine oxidizing agent. The preparation method comprises the following steps: dissolving ammonium nitrate crystals in nearly saturated dimethyl sulfoxide DMSO to obtain a DMSO solution of the ammonium nitrate crystals; adding a graphene oxide suspension into the DMSO solution, and adding a dopamine ethanol solution to obtain a mixed solution containing ammonium nitrate crystals, DA and the graphene oxide suspension; and dropwise adding H2O2 to obtain a mixed solution containing polydopamine PDA,so as to obtain the dopamine modified graphene insensitive doped nitramine oxidizing agent of a GO doped ammonium nitrate crystal energetic material taking PDA as an interface material. The preparation method has the beneficial effects that the safety risk in the operation process is reduced by introducing graphene oxide; and an ammonium nitrate energetic material with relatively high stability, namely, a graphene oxide d