为研究某固体推进剂的贮存安全性,用恒温加速老化箱对其进行65℃、75℃和85℃老化试验,并采用气相色谱法测定老化不同天数下试验样品中安定剂含量,通过贝瑟洛特(Berthlot)方程式,对30℃条件下的安全贮存寿命进行预估。实验结果表明:在3个老化温度条件下,安定剂含量随老化时间逐渐降低,且温度越高下降越快,符合安定剂在推进剂中长期贮存的规律。按照安定剂含量剩余50%作为寿命终点,预估该推进剂在30℃条件下的安全贮存寿命为53年,表明该型推进剂具有较好的贮存安全性。

For the study of a solid propellant storage security,the constant temperature accelerated aging test was occurred which the temperature was 65℃,75℃ and 85℃,and gas chromatography was used to determine the content of stabilizer with at different aging days.The safe storage life at room temperature (30℃) was estimated by the Berthlot equation.The experimental results showed that at 3 aging temperatures,the content of stabilizer decreased with increasing aging time,and the higher the temperature,the faster the decrease,which conformed to the rule of long-term storage of stabilizer in propellant.According to the content of stabilizer remained 50% as the end of life,it was estimated that the safe storage life was 53 years at 30℃,which showed that the solid propellant had better storage safety.