Catalytic Decomposition Effect and Mechanism of Energetic Complex Cu(NH₃)₄(AFT)₂ Towards Fine AP

To ensure the total energy of solid propellants after adding combustion catalyst, using high-energy catalyst with excellent catalytic performances is an efficient way. In this work, a copper complex of 4-amino-3-(5-tetrazolate)-furazan (HAFT), as a combustion catalyst, was synthesized and its catalytic decomposition effect on fine AP and general AP was explored. The results indicate that the thermal behavior of fine AP was changed completely under the catalytic effect of Cu(NH3)(4)(AFT)(2), the heat release of fine AP with Cu(NH3)(4)(AFT)(2) can reach up to 2711 J g(-1) , and the thermal decomposition temperature of pure fine AP was lowered by 69.0 degrees C from 399.1 to 330.1 degrees C. The decomposition mechanism analyzed indicates that fine AP reacts with Cu(NH3)(4)(AFT)(2) in decomposition process, and some intermediates with nanofiber structure were formed, which can increase the specific surface area, thus improving the adsorptive property of Cu(AFT)(2)(NH3)(4) and accelerating the decomposition process of AP. Moreover, the residues further converted to CuCl and CuCl2 mainly. The current study is promising to develop a new kind of energetic combustion catalysts for AP. [GRAPHICS] .