爆破器材2024，Vol.53Issue(4)：9-16,8.DOI:10.3969/j.issn.1001-8352.2024.04.002
Pickering乳液自组装CL-20/n-Al/F2605复合空心微球的制备与性能
Preparation and Characterization of CL-20/n-Al/F2605 Composite Hollow Microspheres Self-Assembled by Pickering Emulsion
孙鹏瞻 1杨敏 2尢淇 1高登钊 2李聪颖 3张行泉 2郭长平2
作者信息
- 1. 西北工业大学伦敦玛丽女王大学工程学院(陕西西安,710129)
- 2. 西南科技大学四川省新型含能材料军民融合创新中心(四川绵阳,621010)
- 3. 山西北化关铝化工有限公司(山西永济,044500)
- 折叠
摘要
Abstract
High-energy and high-heat of detonation hexanitrohexaazaisowurtzitane(CL-20)/Al compo-site has li-mited its wide application in the field of explosives due to its high sensitivity.In order to prepare CL-20/Al energetic com-posites with high energy and safety performance,hollow spherical CL-20/n-Al/F2605 composites were prepared by Picke-ring emulsion method.Stability of Pickering emulsion,surface structure,thermal decomposition,combustion and safety performances of the composites were analyzed.The results show that the stability of the emulsion is good when the solid mass of CL-20 dissolved in 2 mL of ethyl acetate is 0.10～0.14 g,the mass ratio of oil to water is between 1︰5 and 1︰7,the ultrasonic time is less than 30 min,and the standing time is less than 120 min.The surface structure of the compo-site is rough,d50 is about 73.17 μm,and the components are uniformly compounded.Thermal decomposition peak tempe-rature and activation energy of the composites are 236.7℃and 164.6 kJ/mol,respectively.Activation energy of CL-20 in decomposition process is reduced by 21.2%by n-Al and F2605.Average linear burning rate of the composites is 7.14 cm/s.Its characteristic drop height H50 is 39.5 cm,which is 26.5 cm higher than that of raw material CL-20,and the safety performance is improved.关键词
六硝基六氮杂异伍兹烷(CL-20)/纳米铝粉(n-Al)/微球/Pickering乳液Key words
hexanitrohexaazaisowurtzitane(CL-20)/nano-aluminum powder(n-Al)/microsphere/Pickering emul-sion分类
武器工业引用本文复制引用
孙鹏瞻,杨敏,尢淇,高登钊,李聪颖,张行泉,郭长平..Pickering乳液自组装CL-20/n-Al/F2605复合空心微球的制备与性能[J].爆破器材,2024,53(4):9-16,8.
