Method for differential separation of nanometer aluminum powder with different particle sizes

The invention provides a method for differential separation of nanometer aluminum powder with different particle sizes. The method comprises the following steps of preparing a first dispersing agent and a second dispersing agent; and fully mixing aluminum powder needing separation with the first dispersing agent to obtain a mixed solution, centrifuging the mixed solution at different rotating speeds to obtain multiple groups of primary products, fully mixing the obtained multiple groups of primary products with the second dispersing agent respectively, carrying out secondary separation to obtain multiple groups of secondary products, and drying the secondary products to obtain multiple groups of nanometer aluminum powder with different particle sizes. The method for differential separationof nanometer aluminum powder with different particle sizes has the advantages that the method is simple, convenient to carry out and economic, the separation effect is good, the distribution range ofthe particle diameters of