作者：陈永康¹, 陈明华², 张力¹, 葛强², 王韶光², 令狐苗苗³

作者单位：1. 军械工程学院, 河北 石家庄 050003;
2. 军械技术研究所, 河北 石家庄 050003;
3. 山西江阳化工有限公司, 山西 太原 030041

关键词：热分解;硝酸异丙酯;表观活化能;双基推进剂;加速量热仪

摘要：

为研究云爆剂中硝酸异丙酯渗露对双基推进剂的热分解性能影响,采用加速量热仪(ARC)对双基推进剂在加入硝酸异丙酯环境下的热分解情况进行测试,得到其绝热分解的温度、压力时间曲线,利用速率常数法计算出样品的活化能和指前因子等动力学参数。研究发现在加入硝酸异丙酯后,双基推进剂的起始热分解温度升高,表观活化能变大,表明硝酸异丙酯会提高双基推进剂的热稳定性。

Effect of isopropyl nitrate on thermal decomposition characteristics of biradical propellant

CHEN Yongkang¹, CHEN Minghua², ZHANG Li¹, GE Qiang², WANG Shaoguang², LINGHU Miaomiao³

1. Ordnance Engineering College, Shijiazhuang 050003, China;
2. Ordnance Technology Research Institute, Shijiazhuang 050003, China;
3. Jiangyang Chemical Industry Co., Ltd., Taiyuan 030041, China

Abstract: The objective of this paper is to study the effect of leaked isopropyl nitrate(IPN) in fuel air explosive leaked on the thermal decomposition characteristics of biradical propellant. First, the thermal decomposition of IPN-added biradical propellant is tested with accelerating rate calorimeter(ARC) to get corresponding temperature-time and pressure-time curves and activation energy and pre-exponential factors as well as other kinetic parameters are obtained through speed constant algorithm. The initial exothermal temperature and the apparent activation energy of the biradical propellant are observed increasing after the IPN is added, suggesting that IPN can make the biradical propellant more stable.

Keywords: thermal decomposition;isopropyl nitrate;activation energy;double-base propellant;accelerating rate calorimeter

2016, 42(2): 141-144  收稿日期: 2015-5-11;收到修改稿日期: 2015-7-3

基金项目: 

作者简介: 陈永康(1991-),男,江苏泰州市人,博士研究生,研究方向为含能材料性能检测与评估。

参考文献

[1] 王志军,尹建平. 弹药学[M]. 北京:北京理工大学出版社,2012:51-55.
[2] 杨茜,陈利平,陈网桦,等. 4种硝酸酯热安定性的绝热试验研究[J]. 环境与安全学报,2012,12(1):186-190.
[3] 曾秀琳. 硝酸酯热安定性的理论与试验研究[D]. 南京:南京理工大学,2007.
[4] 宣卫芳,陈世英,黄闽,等. 云爆剂化学稳定性检测分析方法探讨[J]. 装备环境工程,2008,5(4):56-58.
[5] 傅智敏. 绝热加速量热法在反应性物质热稳定性评价中的应用[D]. 北京:北京理工大学,2002.
[6] 郭洪. 利用加速量热仪(ARC)研究热分析动力学反应机理[J]. 曲靖师范学院学报,2005,24(3):1-3.
[7] 王霁. 硝酸铵长期存放后热稳定性研究[J]. 科技导报,2012,30(1):60-64.
[8] 胡荣祖,高胜利,赵凤起,等. 热分析动力学[M]. 北京:科学出版社,2008:69-72.
[9] 徐抗震,赵凤起,杨冉,等. GNTO的热分解动力学和比热容及绝热至爆时间研究[J]. 固体火箭技术,2009,32(1):74-78.
[10] YOU J S, KANG S C, KWEON S K, et al. Thermal decomposition kinetics of GAP ETPE/RDX-based solid propellant[J]. Thermochimica Acta,2012(537):51-56.
[11] HU R Z, GAO H X, ZHAO F Q, et al. Theory and numerical method of calculating the kinetic parameters of exothermic decomposition reaction of energetic materials from peak temperature of DSC curves at constant heating rates[J]. Chinese Journal of Energetic Materials,2009,17(6):643-649.
[12] 刘子如,阴翠梅,刘艳,等. RDX和HMX的热分解Ⅱ动力学参数和动力学补偿效应[J]. 火炸药学报,2004,27(4):72-75.