热老化对HMX基高聚物黏结炸药撞击感度的影响
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摘要
参照GJB 736.8—1990的试验方法,对奥克托今(HMX)基高聚物黏结炸药在71℃高温条件下进行了长达203 d的加速老化试验,每隔一定时间测定其撞击感度。研究发现:炸药的撞击感度在加热到147 d以后有下降的趋势,与老化前相比下降了20%,但初期下降比较明显,后期下降比较缓慢,主要是由于热老化首先引起炸药中硝化棉分解,硝化棉的分解产物进一步引起HMX分解。
According to the test method described in GJB 736.8-1990, the accelerated aging test of HMX-based polymer bonded explosives(PBX) at high temperature of 71 ℃ was carried out for long duration of 203 d, and their impact sensitivity was determined at a certain intervals. The study shows that the impact sensitivity of explosives exhibits falling tendency after heating for 147 d, and decreases by 20% compared to that before aging, but the falling is obvious at the initial period and slow at the later period, this is mainly because thermal aging firstly causes decomposition of nitrocellulose in explosives, and its decomposition products further cause decomposition of HMX.
According to the test method described in GJB 736.8-1990, the accelerated aging test of HMX-based polymer bonded explosives(PBX) at high temperature of 71 ℃ was carried out for long duration of 203 d, and their impact sensitivity was determined at a certain intervals. The study shows that the impact sensitivity of explosives exhibits falling tendency after heating for 147 d, and decreases by 20% compared to that before aging, but the falling is obvious at the initial period and slow at the later period, this is mainly because thermal aging firstly causes decomposition of nitrocellulose in explosives, and its decomposition products further cause decomposition of HMX.
引文
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[15]黄亨建,董海山,张明,等.添加剂与RDX的界面作用及对撞击感度的影响研究[J].爆炸与冲击,2003,23(2):169-172.
[16]胡庆贤,吕子剑.TATB、石蜡、石墨钝感作用的讨论[J].含能材料,2004,12(1):26-29.
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[18]刘子如.含能材料热分析[M].北京:国防工业出版社,2008.
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[20]于占龙,吴晓青.炸药撞击感度试验的研究[J].安徽化工,2003(2):20-22.
[21]姜富灵,翟高红,丁黎,等.NO_2,OH和OH~-对环四甲撑四硝胺初始热解的影响[J].物理化学学报,2010,26(2):409-414.
[2]Herman M.Particle processing and characteri-zation partⅣ:PBX formulation and characteri-zation[C]//37th International Annual Conference of ICT.Karlsruhe:Fraunhofer Institute Chemische Technologie,2006.
[3]Philip Cheese.Studies on the effect of aging on a range of UK polymer-bonded explosives[C]//DI IM Energetic Materials Symposium.San Francisco:National Defense Industrial Associa-tion,2004.
[4]Caley L E,Hoffman D M.Dynamic mechanical and molecular weight measurements on polymer bonded explosives from thermally accelerated aging tests.Ⅲ.Kraton block copolymer binder and plasticizers,UCRL-85120[R],1981.
[5]高晓敏,黄明.I-RDX及其PBX老化研究进展[J].含能材料,2010,18(2):236-240.
[6]王文博,鲁国林,杨玲,等.CTPB复合固体推进剂贮存老化性能研究概述[J].化学推进剂与高分子材料,2011,9(3):5-9.
[7]黄奕刚,王晓川,郑敏侠,等.TATB基高聚物粘结炸药低温老化后的结构和热性能研究[J].含能材料,2002,10(2):81-83.
[8]徐涛,程克梅,陈曙东,等.JO-9159炸药柱在加速老化条件下表面特性的变化[J].火炸药学报,2003,26(4):51-54.
[9]韦兴文,李敬明,涂小珍,等.热老化对TATB基高聚物粘结炸药力学性能的影响[J].含能材料,2010,18(2):157-161.
[10]颜熹琳,李敬明,周阳,等.高聚物粘结炸药温湿度载荷加速老化试验研究[J].含能材料,2009,17(4):412-414.
[11]胡庆贤.塑料粘结炸药的感度测试方法及钝感机理的讨论[J].火炸药学报,2002(1):57-58.
[12]松全才,金韶华.炸药理论[M].北京:北京理工大学出版社,1994.
[13]董海山,周芬芬.炸药及相关物性能[M].北京:科学出版社,1989.
[14]吕子剑,胡庆贤,花成.试样药量对钝感炸药撞击感度的影响[J].含能材料,1995,3(3):40-44.
[15]黄亨建,董海山,张明,等.添加剂与RDX的界面作用及对撞击感度的影响研究[J].爆炸与冲击,2003,23(2):169-172.
[16]胡庆贤,吕子剑.TATB、石蜡、石墨钝感作用的讨论[J].含能材料,2004,12(1):26-29.
[17]王泽山.火炸药科学技术[M].北京:北京理工大学出版社,2002.
[18]刘子如.含能材料热分析[M].北京:国防工业出版社,2008.
[19]刘海营,张景林,王作山.炸药撞击感度的研究综述[J].山西化工,2007,27(6):57-59.
[20]于占龙,吴晓青.炸药撞击感度试验的研究[J].安徽化工,2003(2):20-22.
[21]姜富灵,翟高红,丁黎,等.NO_2,OH和OH~-对环四甲撑四硝胺初始热解的影响[J].物理化学学报,2010,26(2):409-414.