火炸药学报2024，Vol.47Issue(6)：521-527,7.DOI:10.14077/j.issn.1007-7812.202404014
微流控制备微纳米LLM-105/CL-20复合含能材料
Preparation of Micro/Nano LLM-105/CL-20 Composite Energetic Materials by Microfluidic Technology
李营 1刘美祺 1刘子君 1詹乐武 1侯静 1李斌栋1
作者信息
- 1. 南京理工大学化学与化工学院,江苏南京 210094
- 折叠
摘要
Abstract
To enhance the safety performance of energetic materials during production and utilization,microfluidics technology was employed to successfully and continuously fabricate high-energy impact-insensitive LLM-105/CL-20 composite materials u-sing modified fluororubber as a binder.The microstructural morphology of the samples was observed using field emission scan-ning electron microscopy(SEM),while the structure and crystalline phase were analyzed through Fourier-transform infrared spectroscopy(FT-IR)and X-ray diffraction(XRD).The thermal decomposition behavior of the samples was assessed via differ-ential scanning calorimetry(DSC),and the mechanical sensitivity of raw material CL-20 and composite particles was tested.The results show that under optimal conditions-where the solvent-to-nonsolvent flow rate ratio was set at 1∶6,the binder mass fraction was 6％,and the total flow rate was 80mL/min-LLM-105 was effectively coated on the surface of CL-20,with particle size distribution ranging from 0.19 to 3.92μm.Characterization by FT-IR and XRD further confirmed the successful coating of LLM-105 on the surface of CL-20.The impact sensitivity of composite particles was increased from 10cm to 55cm(drop mass of 2kg),significantly enhancing their safety performance.The methodology of preparing LLM-105/CL-20 compos-ite particles within microchannels demonstrated advantages in reducing sensitivity,showing that this method is easy to operate and suitable for continuous safe production.关键词
物理化学/微流控/LLM-105/CL-20复合粒子/安全性能Key words
physical chemistry/microfluidic/LLM-105/CL-20 composite/safety performance分类
武器工业引用本文复制引用
李营,刘美祺,刘子君,詹乐武,侯静,李斌栋..微流控制备微纳米LLM-105/CL-20复合含能材料[J].火炸药学报,2024,47(6):521-527,7.
