Imine-based porous organic cages for sensitivity control in energetic materials

The high sensitivity of HMX to external stimuli presents significant safety concerns, necessitating methods to enhance its stability. This study investigates the encapsulation of HMX using imine-based porous organic cages (POCs), specifically CC3, to regulate its decomposition process and improve overall safety. The HMX@CC3 composites were synthesized and characterized through surface morphology, structural, and thermal analyses. The results demonstrate that CC3 encapsulation significantly improves HMX’s thermal stability and reduces its sensitivity, as evidenced by increased resistance to impact, friction, and electrostatic sparks. This study concludes that CC3 enhances HMX’s safety without altering its crystalline structure, offering a promising approach to reducing the sensitivity of energetic materials. This research has significant potential for improving the safety and performance of energetic materials in military and aerospace applications.