不同高温条件下中性斯蒂芬酸铅的寿命预测  

Life Prediction of Neutral Lead Styphnate under Different High Temperature Conditions

作　　者：牛磊 董海平[1] 叶耀坤[2] 吕智星 高鑫 张楠 杨立欣 严楠[1] NIU Lei;DONG Hai-ping;YE Yao-kun;LYU Zhi-xing;GAO Xin;ZHANG Nan;YANG Li-xin;YAN Nan(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Bei-jing Institute of Spacecraft System Engineering,Beijing 100049,China;China Ordnance Industry Explosive Engineering and Safety Technology Research Institute,Beijing 100053,China;Liaoning North Huafeng Special Chemical Co.Ltd,Fushun 113000,China;Beijing Institute of Space Electromechanics,Beijing 100094,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]北京空间飞行器总体设计部,北京100049 [3]中国兵器工业火炸药工程与安全技术研究院,北京100053 [4]辽宁北方华丰特种化工有限公司,辽宁抚顺113000 [5]北京空间机电研究所,北京100094

出　　处：《装备环境工程》2022年第2期27-32,共6页Equipment Environmental Engineering

摘　　要：目的获得中性斯蒂酚酸铅(N-LTNR)在不同高温条件下的贮存寿命,建立一种基于N-LTNR表观活化能和某恒定温度加速性能退化试验的贮存寿命预测模型。方法以热失重作为N-LTNR性能退化参量,利用恒定温度加速试验方法,获得N-LTNR在某恒定加速温度下的热失重性能退化试验数据,采用线性回归法,获得该温度下N-LTNR的性能退化曲线。结合热失重失效阈值,确定N-LTNR在该恒定加速温度下的贮存寿命。基于N-LTNR热分解活化能,建立N-LTNR在高温条件下贮存寿命的预测模型。结果采用该模型对某散装的N-LTNR在不同高温条件下的贮存寿命进行预测,确定了该N-LTNR药剂在180℃下的安定性出现显著变化,在热失重失效阈值为10%的条件下,得到180℃下的寿命为6.4d;150℃下的贮存寿命为86 d。结论该模型可应用于N-LTNR在高温环境下的贮存寿命预测,为航天火工装置的使用提供了依据。In order to obtain the storage life of lead styphnate(N-LTNR) under different high temperature conditions, a storage life prediction model based on the apparent activation energy of N-LTNR and a constant temperature accelerated performance degradation test is established. With the thermal weight loss as the performance degradation parameter of N-LTNR,the thermal weight loss performance degradation test data of N-LTNR at a constant acceleration temperature are obtained by using the constant temperature acceleration test method, and the performance degradation curve of N-LTNR at this temperature is obtained by using the linear regression method. The storage life of N-LTNR at this constant acceleration temperature is determined by combining the thermal weight loss failure threshold. Based on the thermal decomposition activation energy of N-LTNR, the storage life prediction model of N-LTNR at high temperature is established. The model is used to predict the storage life of a bulk N-LTNR under different high temperature conditions. It is determined that the stability of the N-LTNR agent changed significantly at 180 ℃. Under the condition of 10% weight loss failure threshold, the life at 180 ℃ was 6.4 days. The storage life is 86 days at 150 ℃. The results show that the model can be used to predict the storage life of N-LTNR under high temperature environment, which provides a basis for the use of aerospace explosive devices.

关 键 词：中性斯蒂酚酸铅(N-LTNR) 活化能 Arrhenius方程 加速性能退化 安定性 

分 类 号：TJ450[兵器科学与技术—火炮、自动武器与弹药工程]