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为进一步降低低燃速低燃温双基推进剂的燃速、燃温,对一种含能硝基化合物的降温、降速效果进行了实验研究,设计了系列含无机铅盐、有机铜盐及过渡元素金属催化剂的双基配方。通过燃速测试及高压差示扫描量热法(PDSC)研究上述推进剂的燃烧性能和热分解特性。含该硝基化合物的推进剂DSC曲线呈三峰放热,放热峰峰温分别在200℃、280℃、350℃左右,第三峰不明显。结果表明:该含能硝基化合物能有效降低推进剂的燃速、燃温,但使推进剂的压强指数增大,而加入催化剂能改善推进剂的燃烧性能,使压强指数降低,分解放热量也降低。
In order to further reduce the burning rate and burning temperature of the low burning rate and low burning temperature double base propellant, the cooling and decelerating effects of a kind of nitro compound containing nitric oxide were experimentally studied, and the series of inorganic lead salts, organic copper salts and transition Binary formulation of elemental metal catalysts. The combustion performance and thermal decomposition characteristics of the above propellants were studied by burning test and high pressure differential scanning calorimetry (PDSC). The DSC curve of the propellant containing the nitro compound shows a tri-peak exothermic peak exothermic peak temperature of about 200 ℃, 280 ℃, 350 ℃, the third peak is not obvious. The results show that the compounds containing nitrobenzene can effectively reduce the burning rate and burning temperature of propellants, but increase the pressure exponent of propellants. However, the addition of catalysts can improve the combustion performance of propellants, decrease the pressure exponent, Also lower.