The invention discloses a method for preparing a superhydrophobic oxidant based on
lotus effect. The method comprises the following steps: adding a low-surface-energy material into a
solvent, then adding oxidant particles, and carrying out stirring, filtering and
drying successively; and adding the oxidant particles modified by the low-surface-energy material into a
metal salt solution, and carrying out filtering and
drying after a sufficient reaction so as to obtain superhydrophobic oxidant particles. According to the invention, the principles of bionic superhydrophobicity are employed for surface treatment of the oxidant prone to
moisture absorption, so the
moisture absorption rate of the oxidant is significantly reduced, and in particular, under the conditions of a temperature of 60 DEGC, a
relative humidity of 80% and test time of 400 hours, the
moisture absorption rate of ADN is lowered by about 53%, and the superhydrophobic oxidant can be placed in the air for 6 months without any agglomeration; and an utilized
coating material assists in the realization of
moisture absorption prevention performance of the oxidant, and a
metal salt in the
coating material can significantly reduce the
thermal decomposition temperature of the oxidant, which is of important significance to the application of the oxidant to high-burning-rate
solid propellants.