PBX 炸药热分解研究进展

The thermal decomposition of polymer⁃bonded explosives（PBX）under complex service environments represents a quintessential multiscale，multiphysics challenge. While progress has been made at individual scales，current research remains fragmented，lacking a cohesive framework that integrates molecular chemistry，mesoscopic damage evolution，and macroscopic thermo⁃mechanical response. This review systematically synthesizes the state⁃of⁃the⁃art in PBX thermal decomposition，covering methodologies，applications，and critical influencing factors. The key frontiers for future research were identified，including high⁃spatiotemporal⁃resolution in situ characterization，multiscale predictive modeling，and decomposition kinetics under con⁃ finement. Ultimately，developing physics⁃based life prediction models is pivotal for accurately assessing munition health and guiding the design of robust，aging⁃resistant formulations.