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分析了新型含能材料二硝酰胺铵(ADN)的热分解特性和燃烧特性,提出ADN燃烧初期热分解反应的假说,建立了由化学结构特征计算ADN及其混合物燃速公式,并计算了ADN和配比不同的ADN混合物的燃速特征。计算结果与实测值十分一致。从化学结构和化学反应的层次分析了ADN单质燃烧出现平台燃烧现象的原因,认为ADN热分解过程中,中间产物NH4NO3的形成和消失在平台(麦撒)燃烧中起着关键作用。预测了ADN提高固体推进剂燃速和降低燃速压力指数的趋势。
The thermal decomposition and combustion characteristics of the new energy-containing material dinitramide ammonium (ADN) were analyzed. The hypothesis of initial thermal decomposition reaction of ADN was put forward. The formula for calculating the burning rate of ADN and its mixture from the chemical structure was established. The ADN And burning rate characteristics of different ADN mixture. The calculated results are in good agreement with the measured values. From the chemical structure and chemical reaction level, the reasons for the plateau combustion in ADN elemental combustion were analyzed. It is considered that the formation and disappearance of NH4NO3 during the thermal decomposition of ADN play a key role in the combustion of the platform (wheat flour). The tendency of ADN to increase the burning rate of solid propellant and decrease the burning rate pressure index is predicted.