小临界尺寸PVA/PF/CL-20爆炸油墨设计及微尺寸爆轰性能研究

IF 1.7 3区 材料科学 Q3 CHEMISTRY, APPLIED Journal of Energetic Materials Pub Date : 2023-11-06 DOI:10.1080/07370652.2023.2275201
Shijiao Li, Kai Han, Chenyang Li, Haoxing Cao, Kaixin Tan, Jianquan Jing, Fubing Gao, Chongwei An, Bidong Wu
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引用次数: 0

摘要

摘要采用三维直写技术,以聚乙烯醇(PVA)水溶液和酚醛树脂(PF)乙醇溶液为双组份键合体系,以CL-20为主要炸药,设计了临界尺寸小的爆炸油墨配方。我们特别研究了CL-20固体含量对微尺度爆轰性能的影响。初步研究表明,当爆炸油墨中主炸药的含量小于92%时,爆速随含量的增加而增大,爆轰临界尺寸随含量的增加而减小。对成型样品的微观形貌、成型密度、爆炸晶型、机械灵敏度、热稳定性和爆轰角进行了测试和表征。结果表明:打印成型样品内部颗粒分布均匀,无裂纹和断裂,结晶形态保持ε型,机械灵敏度和热稳定性降低,92%炸药油墨成型后爆轰速度达到7281m·s-1,达到临界爆轰尺寸1×0.027mm,爆轰角可达160°,表现出优异的微尺寸爆轰性能。关键词:cl -20爆轰性能直写爆炸性油墨微尺寸披露声明作者未报告潜在利益冲突。
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Design of PVA/PF/CL-20 explosive ink with small critical size and research on micro-sized detonation performance
ABSTRACTUsing 3D direct writing technology, a small critical size explosive ink formula was designed using polyvinyl alcohol (PVA) aqueous solution and phenolic resin (PF) ethanol solution as a two-component bonding system, and CL-20 as the main explosive. In particular, we investigated the influence of the CL-20 solid content on the micro-size detonation performance. Preliminary research shows that when the content of the main explosive in the explosive ink is less than 92%, the detonation velocity increases with the increase of the content, and the detonation critical size decreases with the increase of the content. The micromorphology, molding density, explosive crystal form, mechanical sensitivity, thermal stability and detonation corner of the molded samples were tested and characterized. The results show that the internal particle distribution of the printed molded sample is uniform, without cracks and fractures, the crystal form remains ε-type, the mechanical sensitivity and thermal stability are reduced, and the detonation velocity after molding with 92% explosive ink reaches 7281m·s-1, which is critical The detonation size is 1×0.027mm, and the detonation angle can reach up to 160°, showing excellent micro-size detonation performance. KEYWORDS: CL-20detonation performancedirect writingexplosive inkmicro-size Disclosure statementNo potential conflict of interest was reported by the author(s).
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来源期刊
Journal of Energetic Materials
Journal of Energetic Materials 工程技术-材料科学:综合
CiteScore
5.70
自引率
4.80%
发文量
34
审稿时长
1.8 months
期刊介绍: The Journal of Energetic Materials fills the need for an international forum of scientific and technical interchange in the disciplines of explosives, propellants, and pyrotechnics. It is a refereed publication which is published quarterly. Molecular orbital calculations, synthetic and analytical chemistry, formulation, ignition and detonation properties, thermal decomposition, hazards testing, biotechnology, and toxicological and environmental aspects of energetic materials production are appropriate subjects for articles submitted to the Journal.
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