Innovative applications and challenges of droplet microfluidic technology in energetic materials

The comprehensive performance of energetic materials depends not only on their chemical composition, but also on their microstructure and morphology. As a micro-nano-scale fluid manipulation method with high precision and high controllability, droplet microfluidic technology has shown unique advantages in the field of modification and spherical construction of composite energetic materials in recent years. This technology uses microfluidic chips to accurately generate monodisperse droplets as templates. By accurately regulating the flow behavior of fluids in microchannels, the efficient assembly and functional design of energetic materials are realized, which provides an innovative solution for the modification of traditional energetic materials. In this paper, the latest research progress of droplet microfluidic technology in the field of energetic material assembly is reviewed. The influence of key factors such as microfluidic system, chip structure, assembly mechanism and process parameters on the assembly structure and performance of energetic materials such as high explosives, primary explosives, aluminized explosives and metal fuels is introduced. Finally, the main challenges of current technology development are summarized, and the main directions for future development are prospected, aiming to realize the wider application of droplet microfluidic technology in the modification of energetic materials.