Preparation of low hygroscopicity ADN-based energetic composite microspheres and their performance study

In order to reduce the hygroscopicity of ammonium dinitramide (ADN), four different ADN/nitrocellulose (NC) samples were prepared from acetone solutions using electrostatic spraying, with concentrations 2.5, 5, 7.5, and 10 mg ml−1. The morphology was analyzed by scanning electron microscopy, regular uniform size examined x-ray powder diffraction differential calorimetry investigate crystal structure obtain their thermal decomposition properties. Additionally, mechanical sensitivity microspheres also obtained these studies. ADN/NC energetic complexes at a concentration 5 ml−1 found be spherical, in shape, size. apparent activation energy critical temperature for explosion reduced. impact sensitivities comparable those raw material, whereas friction enhanced. Water absorption tests showed that moisture ADN 32.12%, sample after coating 3.75%. significantly