Kinetic Investigation of Ammonium Perchlorate- Glysydyl Azide Polymer (AP/GAP) Thermal Decomposition in the Presence of Graphene@Fe3O4

In this study, the effect of Fe3O4-coated graphene as nanocatalyst on the kinetics degradation of Ammonium Perchlorate and Glysydyl Azide Polymer (AP/GAP) composite propellants is investigated in order to modify and improve the burning rate of propellants. The SEM-EDX and EDX-Mapping surface analysis methods were used for structural and morphological study of the propellant containing nanocatalyst. The results showed that all the samples were homogenous. Thermal analysis techniques (DSC and TG) were used in the presence and absence of the nanocatalyst in order to investigate the thermal behavior of the propellant. The results showed that Graphene@Fe3O4 reduces decomposition temperature and merge decomposition peaks of AP. This will probably speed up the process of thermal decomposition of AP in the propellant. Moreover, the thermal decomposition kinetics of the samples were investigated using TGA analysis data and Friedman, Ozawa, and Flynn-Wall-Ozawa (FWO) methods. Then the activation energy of the samples were calculated. The results showed that the required activation energy in the presence of Graphene@Fe3O4 was less than in the absence of the catalyst, improving theperformance of propellant.