制备多孔CL-20/FOX-7@AP复合微球以提高安全性和能量释放效率

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-05-09 DOI:10.1016/j.powtec.2025.121108

Wenqing Li, Shimin Zhang, Songchao Shi, Xin Ruan, Qian Yang, Baoyun Ye, Chongwei An, Jingyu Wang

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引用次数: 0

摘要

在复合固体推进剂（CSPs）的配方中，氧化剂的比例往往超过50%。探索新型高能氧化剂的制备对提高聚光镜的能量性能具有十分重要的意义。采用微通道重结晶技术结合溶剂蒸发诱导自组装技术，将高密度CL-20和高安全性FOX-7与传统氧化剂AP结合，制备了多孔CL-20/FOX-7@AP复合微球。实验结果表明，多孔CL-20/FOX-7@AP复合微球形貌规则，AP均匀附着在多孔CL-20/FOX-7复合微球表面。与CL-20/FOX-7复合微球相比，CL-20/FOX-7@AP的氧平衡由- 14.12%提高到- 8.47%，CL-20/FOX-7@AP-1和CL-20/FOX-7@AP-2的最小冲击激发能分别提高了2.25 J和3.25 J。用CL-20/FOX-7@AP-1和CL-20/FOX-7@AP- 2作为新型氧化剂替代csp配方中10%的AP，燃烧率分别提高21.52%和27.85%，加压率分别提高69.79%和75.44%。具有多孔协同核壳结构的CL-20/FOX-7@AP复合微球有望作为新型高能氧化剂应用于csp中，以提高csp的能量密度和能量释放效率。

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Preparation of porous CL-20/FOX-7@AP composite microspheres to enhance safety and energy release efficiency

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Preparation of porous CL-20/FOX-7@AP composite microspheres to enhance safety and energy release efficiency

The proportion of oxidizer in the formulation of composite solid propellants (CSPs) is often more than 50 %. It is very important to explore the preparation of new high-energy oxidizers to improve the energy performance of CSPs. Porous CL-20/FOX-7@AP composite microspheres were prepared by combining high-energy density CL-20 and high safety FOX-7 with traditional oxidant AP through microchannel recrystallization technology coupled with solvent evaporation induced self-assembly technology. The experimental results show that the morphology of porous CL-20/FOX-7@AP composite microspheres is regular, and AP is uniformly attached to the surface of porous CL-20/FOX-7 composite microspheres. Compared with CL-20/FOX-7 composite microspheres, the oxygen balance of CL-20/FOX-7@AP increased from −14.12 % to −8.47 %, and the minimum impact excitation energy of CL-20/FOX-7@AP-1 and CL-20/FOX-7@AP-2 increased by 2.25 J and 3.25 J, respectively. When CL-20/FOX-7@AP-1 and CL-20/FOX-7@ AP-2 were used as new oxidants to replace 10 % AP in CSPs formula, the burning rate increased by 21.52 % and 27.85 % respectively, and the pressurization rate increased by 69.79 % and 75.44 % respectively. CL-20/FOX-7@AP composite microspheres with a porous synergistic core-shell structure are expected to be used as novel high-energy oxidants in CSPs to improve the energy density and energy release efficiency of CSPs.

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.