爆破器材2024，Vol.53Issue(4)：37-44,8.DOI:10.3969/j.issn.1001-8352.2024.04.006
含CL-20的微孔发射药的设计及性能研究
Design and Performance Study on Microporous Gun Propellant Containing CL-20
郏杭生 1崔立宝 1丁亚军 1李成龙 1顾晗 1王晓倩2
作者信息
- 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)
- 折叠
摘要
Abstract
In order to study the influence of hexanitrohexaazaisowurtzitane(CL-20)content and microporous struc-ture 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 micros-copy(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.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Key words
microporous foaming/supercritical fluid/gun propellant/CL-20/combustion/sensitivity/mechanical property分类
化学工程引用本文复制引用
郏杭生,崔立宝,丁亚军,李成龙,顾晗,王晓倩..含CL-20的微孔发射药的设计及性能研究[J].爆破器材,2024,53(4):37-44,8.
