Control of particle size in energetic drop-on-demand inkjet method

Abstract

Nano-energetic materials have attracted the worldwide attention since they play an important role in fabricating insensitive high-energy explosives, microenergetic devices, and explosive detectors. However, applications of nano-energetic materials are still limited by the low loading accuracy, material-wasting, and complicated steps. To solve this problem, the drop-on-demand inkjet method is proposed to precisely print energetic droplets. We expect to achieve energetic materials with nanoscale particles by integrating the deposition and the nanocrystallization of energetic droplets in one step. A proprietary uniform energetic micro-droplet printing equipment is utilized to reveal the influence of temperature and frequency on the particle size of energetic materials. Finally, a uniform line, with the particle size between nanometer and microns, is successfully obtained, showing the feasibility of the proposed method for preparing the micro scale charge of nano-energetic materials.