Abstract
Microparticles Cu2O flower-like, new Cu2O-C60 composite and energetic composite Al/Cu2O-C60 were successfully synthesized. The morphology, structure, and chemical composition of these additives were observed by using SEM, XRD, EDS and FTIR analysis. Non-isothermal DSC/TGA measurements were performed to study the thermal behavior of these additives at different heating rates. From the comparison of DSC and TGA plots, it has been clearly noticed the catalytic effect of Cu2O and Cu2O-C60 where, the LTD of AP was decreased from 331 °C to 315 °C, 310 °C and 303 °C (in presence of Cu2O, Cu2O-C60 and Al/Cu2O-C60 respectively) and the HTD was dropped from 430 °C (pure AP) to 384 °C, 375 °C and 350 °C (for the compounds AP/Cu2O, AP/Cu2O-C60 and AP/Al/Cu2O-C60 respectively). The kinetics of the different samples were studied by isoconversional models, Friedman, OFW, and KAS methods, and then compared to those obtained by an iterative procedure using MATLAB R2016a as platform of computations. The pure AP kinetic results indicated that the decomposition process is complex and involves different stages with different reaction mechanisms. The additives incorporated in the AP have influenced its decomposition process by modifying the reaction mechanisms and the number of involved stages.
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