火炸药学报2026，Vol.49Issue(8)：884-892,9.DOI:10.14077/j.issn.1007-7812.202604004
液滴微流控技术制备Al/B/MnO2含能微球及性能研究
Preparation and Performance Study of Al/B/MnO2 Energetic Microspheres via Droplet Microfluidic Technology
摘要
Abstract
To investigate the effect of B on the performance of nano-thermites,Al/B/MnO2 thermite microspheres with differ-ent Al/B molar ratios were prepared via droplet microfluidic technology.The morphology,flowability,bulk density,specific surface area,thermal properties and combustion properties of the microspheres were characterized,and the influence of differ-ent molar ratios of Al/B on the microsphere properties was studied.The results show that the microspheres prepared by droplet microfluidic technology exhibit narrow particle size distribution,high circularity and excellent dispersibility.Both loose and compacted microspheres can achieve stable combustion,and the flame temperature and burning rate of the microspheres are af-fected by the fuel composition.When the Al/B molar ratio is 75/25,the microspheres present the highest reactivity and the maximum combustion flame temperature of 1 609 ℃.The burning rate decreases from 26.45 mm/s to 11.03 mm/s with in-creasing boron content.It is demonstrated that boron incorporation can regulate the physical structure and energy performance of nanothermites.关键词
物理化学/液滴微流控技术/Al/B/MnO2/纳米铝热剂/燃烧性能Key words
physical chemistry/droplet microfluidic technology/Al/B/MnO2/nanothermite/combustion performance分类
军事科技引用本文复制引用
薛天乐,王凡,王彤,刘垚锟,靳豪博,蒲彦蓉,安崇伟,王晶禹,武碧栋..液滴微流控技术制备Al/B/MnO2含能微球及性能研究[J].火炸药学报,2026,49(8):884-892,9.基金项目
国家自然科学基金(No.22005275) （No.22005275）
山西省基础研究计划资助项目(No.202403021221113) （No.202403021221113）
山西省研究生教育创新计划(No.2025XS135) （No.2025XS135）
