A Study of Thermal Decomposition Characteristic

Journal of Propulsion Technology ›› 2016, Vol. 37 ›› Issue (9): 1780-1785.

• Material,Propellant and Fuel • Previous Articles Next Articles

A Study of Thermal Decomposition Characteristic

Nanjing University of Science and Technology of Chemical Engineering，Nanjing 210094，China,Beijing Institute of Aerospace Testing Technology，Beijing 100074，China,Beijing Institute of Aerospace Testing Technology，Beijing 100074，China,Nanjing University of Science and Technology of Chemical Engineering，Nanjing 210094，China;China National Quality Supervision and Inspection Center for Industrial Explosive Materials，Nanjing 210094，China,Nanjing University of Science and Technology of Chemical Engineering，Nanjing 210094，China;China National Quality Supervision and Inspection Center for Industrial Explosive Materials，Nanjing 210094，China,China National Quality Supervision and Inspection Center for Industrial Explosive Materials，Nanjing 210094，China and Nanjing University of Science and Technology of Chemical Engineering，Nanjing 210094，China

Published:2021-08-15

肼混合物胶体推进剂的热分解特性研究

史良煜¹,程永喜²,方涛²,徐森^1,3,刘大斌^1,3,仲倩³,王凯¹

南京理工大学化工学院，江苏南京 210094,北京航天试验技术研究所，北京 100074,北京航天试验技术研究所，北京 100074,南京理工大学化工学院，江苏南京 210094; 国家民用爆破器材质量监督检验中心，江苏南京 210094,南京理工大学化工学院，江苏南京 210094; 国家民用爆破器材质量监督检验中心，江苏南京 210094,国家民用爆破器材质量监督检验中心，江苏南京 210094,南京理工大学化工学院，江苏南京 210094

作者简介:史良煜，男，硕士，研究领域为推进剂安全性。E-mail: sly007go@sina.com 通讯作者:徐森，男，博士，讲师，研究领域为含能材料安全性。
基金资助:
航天科技创新基金(CASCO3-1)。

Abstract

Abstract: In order to evaluate the thermal safety of hydrazine compounds gel propellant ，its thermal decomposition characteristics were studied by Differential Scanning Calorimetry (DSC) and Accelerating Rate Calorimeter (ARC). The onset decomposition temperature of propellant are 185.73，227.20，230.37 and 245.19℃ in different heating rate of 2，5，10 and 20K·min-1，respectively in DSC test and the activation energy of the gel propellant is 181.80 kJ·mol-1 according to Kissinger method. Whilst in ARC test，in the ideal adiabatic environment，the onset decomposition temperature is 180.58℃，the maximum temperature rise rate is 0.6237℃·min-1，the adiabatic temperature rise is 227.92℃，the maximum temperature is 408.50℃ and the calculated result of activation energy is 121.77kJ·mol-1. They are basically the same. Results indicate that the phase transition with endothermic happened firstly and then followed by decomposition with exothermic in heating process of hydrazine compounds gel propellant.

Key words: Gel propellant；Thermal decomposition；Dynamics；Thermal stability

摘要： 为了评估肼混合物胶体推进剂的热安全性，采用差示扫描量热仪(DSC)和绝热加速量热仪(ARC)，对肼混合物胶体推进剂的热分解特性进行了研究。DSC的实验结果表明，在2，5，10和20K·min-1四种升温速率下推进剂的初始热分解温度分别为185.73，227.20，230.37和245.19℃；根据DSC的试验结果，利用Kissinger法计算得到热分解活化能为181.80kJ·mol-1。在ARC实验中，肼混合物胶体推进剂在理想绝热条件下的初始分解温度为180.58℃，最大温升速率达到0.6237°C·min-1，绝热温升为227.92℃，最高温度为408.50℃，计算得到其热分解活化能为121.77kJ·mol-1。比较DSC与ARC的试验结果，两者基本一致；热分析试验中推进剂先经历相变吸热过程，再进行分解放热。

关键词: 胶体推进剂；热分解；动力学；热稳定性

SHI Liang-yu¹,CHENG Yong-xi²,FANG TaO²,XU Sen^1,3,LIU Da-bin^1,3,ZHONG Qian³,WANG Kai¹. A Study of Thermal Decomposition Characteristic[J]. Journal of Propulsion Technology, 2016, 37(9): 1780-1785.

史良煜,程永喜,方涛,徐森,刘大斌,仲倩,王凯. 肼混合物胶体推进剂的热分解特性研究[J]. 推进技术, 2016, 37(9): 1780-1785.

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A Study of Thermal Decomposition Characteristic

肼混合物胶体推进剂的热分解特性研究

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