Catalysis combustion property and mechanism of PDADN-RDX-CMDB propellant

In order to study effects of several kinds of composite catalysts on the combustion behavior of PDADN-RDX-CMDB propellant, different means such as thermogravimetric loss, microthermo couple, burning-rate experiment and SEM of quenched sample surface were adopted. The results show that two kinds of composite catalysts, which are ΦPb-βCu-CB and βPbCu-CB, can obviously improve the combustion behavior of PDADN-RDX-CMDB propellant, combustion pressure exponent are decreased and burning-rate are increased. The "bubble-condensation reaction" theory are proposed to explain "super rate combustion" phenomenon of PDADN-RDX-CMDB with composite catalysts propellant.