Comprehensive Study of the Interaction and Mechanism between Bistetrazole Ionic Salt and Ammonium Nitrate Explosive in Thermal Decomposition

Abstract

Bistetrazole energetic ionic salts, such as dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate (TKX-50) and diamino 5,5′-bistetrazole-1,1′-diolate (ABTOX), are new insensitive materials and have great potential applications because of their good energy and safety performance. Prior to pure explosive preparation into PBX, the interactions between the components must be evaluated. Examination of interactions between bistetrazole ionic salt and ammonium nitrate explosive in thermal decomposition is beneficial in revealing the interactive mechanism of these two kinds of energetic materials in decomposition, as well as in the evaluation of compatibility, safety, and reliability of PBX explosive based on TKX-50, ABTOX, HMX, and RDX. Herein, the thermal decomposition behavior of TKX-50/HMX, ABTOX/HMX, TKX-50/RDX, and ABTOX/RDX is investigated. Ammonium nitrate explosives can significantly reduce the thermal decomposition peak temperature of the bistetrazole ionic salt. For example, HMX reduces the decomposition p...