CHINESE JOURNAL OF ENERGETIC MATERIALS
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3,4-二硝基吡唑的性能表征及应用
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作者单位:

(北京理工大学爆炸科学与技术国家重点实验室, 北京 100081)

作者简介:

唐伟强(1992-),男,研究生,主要从事混合炸药及其应用研究。e-mail: tangweiqiang666@qq.com 通信联系人: 任慧(1973-),女,副教授,博士生导师,主要从事含能材料与火工品技术研究。e-mail: renhui@bit.edu.cn

通讯作者:

任慧(1973-),女,副教授,博士生导师,主要从事含能材料与火工品技术研究。e-mail: renhui@bit.edu.cn

基金项目:

国家自然科学基金资助(U1530262)


Property Characterization of 3,4-Dinitropyrazole and its Application
Author:
Affiliation:

(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology, Beijing 100081, China)

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    摘要:

    3, 4-二硝基吡唑 (DNP) 替代TNT作为新型熔铸炸药载体的可行性, 采用光学显微镜、傅里叶红外变换光谱仪、紫外可见分光光度计及DTA/TG热分析仪器对其结构进行了表征, 利用氧弹量热仪、电测法分别测试了DNP爆热、爆速, 并应用VLW程序计算了TNT/CL-20, DNP/CL-20混合炸药的爆轰参数。结果表明, DNP热分解过程主要分为吡唑环断裂和硝基脱环、自催化加速反应两个阶段, 热分解表观活化能为131 kJ·mol-1; DNP爆热、爆速分别为4326 kJ·Kg-1、7633 m·s-1, 计算得出DNP/CL-20混合炸药爆轰性能明显优于TNT/CL-20混合炸药, 当DNP/CL-20=2:3(质量比) 时, 计算爆压为39.4 GPa, 爆速为8961 m·s-1

    Abstract:

    To explore the possibility of 3, 4-dinitropyrazole (DNP) instead of TNT as a new carrier for melt-cast explosives., its structure was characterized by optical microscope, FTIR spectrometer, UV VIS spectrophotometer, TG/DTA thermal analysis instrument. The heat of detonation and detonation velocity of DNP were respectively tested by an oxygen bomb calorimeter and the electrical measuring method. The detonation property parameters of DNP/CL-20 and TNT/CL-20 composite explosives were calculated by the VLW program. Results show that thermal decomposition of DNP, can be divided into two stages: ring′s breaking、nitro′s falling off from the ring of DNP and autocatalytic reaction.The apparent activation energy of thermal decomposition of DNP is 131 kJ·mol-1. The experimental values of heat of detonation and detonation velocity of DNP are 4326 kJ·kg-1 and 7633 m·s-1, respectively. The detonation performances of DNP/CL-20 composite explosive are better than those of TNT/CL-20 composite explosive. The calculated values of detonation pressure and detonation velocity of DNP/CL-20 mixed explosive are 39.4 GPa and 8961 m·s-1, respectively when DNP/CL-20=2:3(mass ratio).

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引用本文

唐伟强,任慧,焦清介,等.3,4-二硝基吡唑的性能表征及应用[J].含能材料, 2017, 25(1):44-48. DOI:10.11943/j. issn.1006-9941.2017.01.007.
TANG Wei-qiang, REN Hui, JIAO Qing-jie, et al. Property Characterization of 3,4-Dinitropyrazole and its Application[J]. Chinese Journal of Energetic Materials, 2017, 25(1):44-48. DOI:10.11943/j. issn.1006-9941.2017.01.007.

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  • 收稿日期: 2016-03-11
  • 最后修改日期: 2016-06-07
  • 录用日期: 2016-06-21
  • 在线发布日期: 2017-01-19
  • 出版日期: 2017-01-20