含相稳定硝酸铵CMDB推进剂的机械感度和燃烧性能

Mechanical Sensitivity and Combustion Properties of CMDB Propellant Containing PSAN

通过测试撞击感度、摩擦感度和燃速,研究了含相稳定硝酸铵(PSAN)的改性双基(CMDB)推进剂的燃烧性能和机械感度。结果表明,PSAN可改善CMDB推进剂的机械感度;用PSAN作氧化剂,其推进剂的燃速低于RDX作氧化剂的燃速,压强指数高于后者的压强指数;1～5MPa压力范围内随PSAN在配方中含量的增加,推进剂的燃速降低,压强指数升高。

The mechanical sensitivity and combustion properties of CMDB propellant using phase stabilized ammonium nitrate(PSAN) as oxidizer were investigated through the burning rate, impact sensitivity and friction sensitivity measurements. The experimental results show that PSAN is effective for improving the sensitivity of CMDB propellant, the burning rate of CMDB propellant with PSAN is lower than that of CMDB propellant with RDX, and the pressure exponent of CMDB propellant with PSAN is higher than that of CMDB propellant with RDX. With increasing the PSAN content in CMDB propellant, the burning rate decreases, and the pressure exponent increases in the pressure range of 1 to 5 MPa.