FTIR Characterization and Thermal Decomposition Kinetics of AN/AP-Based Composite Solid Propellants

摘要: Solid Rockets are one of the most efficient and reliable rockets, but production of chlorine gases in the exhausts of these rockets is a major drawback. The toxic exhaust is due to the presence of ammonium perchlorate (AP) as the oxidizer. Thus, the solution to decrease this exhaust is the use of green oxidizers such as ammonium nitrate (AN), but it suffers from the drawback of low energetics and hygroscopicity, phase transitions at room temperatures, and incomplete combustion in pure form. The present work emphasizes the phase stabilization of AN in the presence of AP and cobalt nitrate hexahydrate (CNH) catalyst. FTIR study helps to identify present functional groups in the propellant samples. The thermal decomposition of AN/AP-based propellant samples was investigated with an STA Instrument under a nitrogen atmosphere with different heating rates. The kinetic studies reveal the steps of reactions and …