几种金属氧化物催化剂对双基药热分解性能的影响

Influence of Several Metal-Oxide Catalyzers on Thermal Decomposition Performance of Double-base Propellant

选择几种典型的金属氧化物作为催化剂,采用差热分析(DTA)法来研究双基药的热分解性能。结果表明,添加一定量的某些金属氧化物催化剂于双基药中,可以改变其热分解反应动力学参数;Fe2O3和Pb3O4可降低双基药的热分解活化能和分解峰值温度,且Fe2O3的效果相对较好;MoO3可增加双基药的热分解活化能和分解峰值温度;将特定的金属氧化物催化剂用于发射药,可调控发射药的热分解性能和燃烧性能。

Thermal analysis （DTA） was adopted to study the thermal decomposition performance of double-base propellant by selecting several typical metal-oxides as catalyzers. The results show that the kinetic parameters of thermal decomposition reaction of the double-base propellants can be changed by some metal-oxide catalyzers. The activation energies and peak temperatures of thermal decomposition reaction of the double-base propellants can be depressed by Fe2O3and Pb3O4, and Fe2O3has better effect. The activation energy and peak temperature of thermal decomposition reaction of double-base propellant can be raised by MoO3. Applying certain metal-oxide catalyzers to propellant, thermal decomposition performance and burning performance of propellant can be controlled.