[1]郏杭生①,崔立宝①,丁亚军①,等.含CL-20的微孔发射药的设计及性能研究[J].爆破器材,2024,53(04):37-44.[doi:10.3969/j.issn.1001-8352.2024.04.006]
　JIA Hangsheng,CUI Libao,DING Yajun,et al.Design and Performance Study on Microporous Gun Propellant Containing CL-20[J].EXPLOSIVE MATERIALS,2024,53(04):37-44.[doi:10.3969/j.issn.1001-8352.2024.04.006]
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含CL-20的微孔发射药的设计及性能研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
53
期数:
2024年04
页码:
37-44
栏目:
爆炸材料
出版日期:
2024-07-18

文章信息/Info

Title:
Design and Performance Study on Microporous Gun Propellant Containing CL-20
文章编号:
5916
作者:
郏杭生①; 崔立宝①; 丁亚军①; 李成龙①; 顾晗①; 王晓倩②
①南京理工大学化学与化工学院（江苏南京，210094）
②驻太原地区防化军代室（山西太原，030000）
Author(s):
JIA Hangsheng①;  CUI Libao①;  DING Yajun①;  LI Chenglong①;  GU Han①;  WANG Xiaoqian②
①School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
②Military Representative Office in Taiyuan District (Shanxi Taiyuan, 030000）
关键词:
微孔发泡; 超临界流体; 发射药; CL-20; 燃烧; 感度; 力学性能
Keywords:
microporous foaming;  supercritical fluid;  gun propellant;  CL-20;  combustion;  sensitivity;  mechanical property
分类号:
TQ562
DOI:
10.3969/j.issn.1001-8352.2024.04.006
文献标志码:
A
摘要:
为了研究六硝基六氮杂异伍兹烷（CL-20）含量及微孔结构对发射药性能的影响，采用超临界发泡工艺设计并制备了含CL-20的微孔发射药。利用扫描电子显微镜（SEM）观察了发射药的形貌结构，通过密闭爆发器实验、简支梁冲击仪和摩擦感度仪等研究了发射药的燃烧性能、力学性能和感度。结果表明：CL-20颗粒均匀地分散在样品表面及内部，样品内部形成了大量尺寸为0.08~2.00 μm的泡孔；CL-20颗粒的加入降低了样品的力学性能，CL-20含量越高，样品的抗冲击强度与拉伸强度降低得越明显；随着CL-20含量的增加，样品的摩擦感度和静电感度会随之升高，燃速也会得到一定程度的提高；经发泡改性后的样品的力学性能弱于未经发泡改性的样品；发泡工艺能够抑制因CL-20含量上升而导致的感度上升；经过发泡后的样品，燃烧性能得到了显著提升，样品的L-B（相对动态活度-相对压力）曲线在B为0~0.10范围内即出现急速上升趋势，L在B为0.14~0.18范围内达到最大，CL-20质量分数为15%和20%时,Lmax分别为14.39 MPa－1·s－1和9.70 MPa－1·s－1。
Abstract:
In order to study the influence of hexanitrohexaazaisowurtzitane (CL-20) content and microporous structure on the performance of gun propellant, a supercritical foaming process was used to design and prepare microporous gun propellants containing CL-20. Morphology and structure of the gun propellant were observed using scanning electron microscopy (SEM). Combustion performance, mechanical properties, and sensitivity were studied by closed bomb tests, simply supported beam impact tests, and friction sensitivity tests, respectively. The results show that CL-20 particles uniformly disperse on the surface and interior of the sample, and a large number of bubbles with sizes ranging from 0.08 to 2.00 μm were formed inside the sample. The addition of CL-20 particles reduces mechanical properties of the samples. The higher the content of CL-20, the more significant the decrease in the impact strength and tensile strength of the sample. With the increase of CL-20 content, friction sensitivity and electrostatic sensitivity of the sample will also increase, and burning rate will be improved to a certain extent. Mechanical properties of the sample after foaming modification are weaker than those of the sample without foaming modification. Foaming process can suppress the increase in sensitivity caused by the increase in CL-20 content. After foaming, combustion performance of the sample is significantly improved. L-B (relative dynamic vivacity-relative pressure) curves of the sample show a rapid upward trend in the range of B?from 0 to 0.10. And it reaches the maximum in the range of B?from 0.14 to 0.18. When the mass fraction of CL-20 is 15% and 20%, Lmax is 14.39 MPa－1·s－1?and 9.70 MPa－1·s－1, respectively.

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备注/Memo

备注/Memo:
收稿日期：2023-12-26
第一作者：郏杭生（1998—），男，硕士研究生，主要从事含能材料的研究。E-mail：2216189400@qq.com
通信作者：李成龙（1990—），男，博士，主要从事含能材料的研究。E-mail：lclzzz@126.com
更新日期/Last Update: 2024-07-16