[1]张杰凡①,徐森①③,刘大斌①,等.快/慢烤试验中复合推进剂内部温度场的分布[J].爆破器材,2017,46(03):17-21.[doi:10.3969/j.issn.1001-8352.2017.03.004]
　ZHANG Jiefan,XU Sen,LIU Dabin,et al.Internal Temperature Field Distribution of the Composite Propellant during Fast/Slow Cook-off Test[J].EXPLOSIVE MATERIALS,2017,46(03):17-21.[doi:10.3969/j.issn.1001-8352.2017.03.004]
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快/慢烤试验中复合推进剂内部温度场的分布()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
46
期数:
2017年03
页码:
17-21
栏目:
基础理论
出版日期:
2017-05-05

文章信息/Info

Title:
Internal Temperature Field Distribution of the Composite Propellant during Fast/Slow Cook-off Test
文章编号:
5142
作者:
张杰凡①; 徐森①③; 刘大斌①; 李苗苗②; 李辉②; 陈愿①; 李文海①
①南京理工大学化工学院(江苏南京，210094)
②上海航天动力技术研究所(浙江湖州，313000)
③国家民用爆破器材质量监督检验中心(江苏南京，210094)
Author(s):
ZHANG Jiefan①;  XU Sen①③;  LIU Dabin①;  LI Miaomiao②;  LI Hui②;  CHEN Yuan①;  LI Wenhai①
①School of Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
②Shanghai Aerospace Propulsion Technology Research Institute (ZhejiangHuzhou, 313000)
③National Quality Supervision and Inspection Center for Industrial Explosive Materials (Jiangsu Nanjing, 210094)
关键词:
复合推进剂; 慢速烤燃试验; 快速烤燃试验; 热爆炸
Keywords:
composition propellant;  slow cook-off test;  fast cook-off test;  thermal explosion
分类号:
TJ410
DOI:
10.3969/j.issn.1001-8352.2017.03.004
文献标志码:
A
摘要:
为了研究不同烤燃条件下复合推进剂(PBT/HMX/Al/AP/BU)的响应特性,采用DSC研究了复合推进剂及单组分的热分解特性。复合推进剂的初始分解温度为187.27 ℃，单组分中BU初始分解温度最低，为192.95 ℃，表明复合推进剂的热分解过程是从BU开始；分别测量了在快/慢烤试验中，复合推进剂内部温度的变化。结果表明：1）快烤试验中，样品内部温度分布极不均匀。点火90 s后，样品发生反应，此时样品中心的温度为85 ℃，钢管端盖破裂，样品发生燃烧反应。2）慢烤试验中，样品内部温度分布均匀，几乎无温度差，样品发生反应时，样品内部温度与环境温度均为133 ℃，试验后样品钢管完全破碎，样品发生了爆轰。由此可见，慢烤试验中，由于样品内部温度分布均匀，发生反应时，大部分样品都处于临界反应温度，一旦激发，破坏效应比快烤试验更严重。
Abstract:
In order to study the response characteristic of composite propellant (PBT/HMX/AL/AP/BU) under different cook-off conditions, DSC was used to measure the thermal decomposition characteristic of the composite propellant and each of its single components. The initial decomposition temperature of the propellant is 187.27 ℃, and that of BU is 192.95 ℃ which is the lowest among all components. Thus,the thermal decomposition process is started from BU. The internal temperature field distribution of the composite propellant subjected to fast/slow cook-off test was also studied. Results indicate that the temperature distribution of the propellant is non uniform in the fast cook-off test. 90 s after the ignition, the central temperature of the sample is only 85 ℃, the pipe cap is ruptured and the combustion reaction occurs. Whilst the temperature distribution of the propellant is uniform in the slow cook-off test, the internal and the environmental temperatures are both 133 ℃. The pipe was completely broken, and a detonation reaction happened. Thus, in the slow cook-off test, since the internal temperature distribution is uniform, and most of the samples are in the critical reaction temperature, once an excitation occurs, the destructive effect will be more serious than that in the fast cookoff test.

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备注/Memo

备注/Memo:
收稿日期：2017-01-11
作者简介：张杰凡（1992－），男，硕士，主要从事推进剂安全性能研究。E-mail：zhangjf_92619@163.com
通信作者：徐森（1981－），男，副教授，主要从事含能材料的安全性评估及测试技术。E-mail: xusen@njust.edu.cn
更新日期/Last Update: 2017-05-05