Catalytic Effect of Transition Metal Complexes of Triaminoguanidine on the Thermolysis of Energetic NC/DEGDN Composite.

The transition metal complexes of triaminoguanidine (TAGwhere M = Cobalt (Co) or Iron (Fe)) have been prepared. The catalytic effect of these complexes on the thermolysis of energetic composite based on nitrocellulose and diethylene glycol dinitrate? has been investigated. Extensive characterization of the resulting energetic composites was carried out sing scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). Isoconversional kinetic analysis was performed to determine the Arrhenius parameters associated with the thermolysis of the elaborated energetic formulations. It is found that TAG-M complexes have strong catalytic effect on the thermokinetic decomposition of NC/DEGDN by decreasing the apparent activation energy and significantly increased the total heat release. The models that govern the decomposition processes are also studied, and it is revealed that different react io n processes are accomplished by introduction metal complexes of triaminoguanidine. Overall, this study serves as a valuable reference for future research focused on the investigation of catalytic combustion features of solid propellants. [ABSTRACT FROM AUTHOR]