含能材料2025，Vol.33Issue(11)：1265-1273,9.DOI:10.11943/CJEM2025112
静电喷雾技术制备Al@CL-20基复合含能微球的工艺研究
Process Investigation of Al@CL-20-based Composite Energetic Microspheres Fabricated via Electrostatic Spray Technique
摘要
Abstract
To address the issues of incomplete aluminum powder combustion,slow energy release efficiency and prolonged ig-nition delay,nAl@PVDF@CL-20 composite energetic microspheres were fabricated via electrostatic spray technique.The mor-phological structure and particle size distribution were optimized by adjusting parameters,including eolvent type,lectric field intensity and sand binder content.Experimental results demonstrated that the uniform microspheres with size distribution of 2.37-2.67 μm and homogeneous component dispersion were achieved using a dimethylformamide/ethyl acetate(DMF/EAC)mixed solvent at the volume ratio of 2∶1,with the PVDF content fixed at 5%and electrode voltage maintained at 14 kV.Concur-rently,a crystal phase transition of CL-20 from ɛ-CL-20 to β-CL-20 occurred during atomization and deposition processes due to recrystallization.Furthermore,the adoption of nAl significantly enhanced the energy release efficiency and combustion perfor-mance of microspheres.The optimal performance was attained at 40%nAl loading,achieving a maximum equilibrium pressure of 1.17 MPa and a peak pressure rise rate of 6.99×103 kPa·ms-1.关键词
静电喷雾法/纳米铝粉/六硝基六氮杂异伍兹烷(CL-20)/复合含能微球Key words
electrostatic spray method/nano-aluminum powder/hexanitrohexaazaisowurtzitane(CL-20)/composite energetic mi-crospheres分类
武器工业引用本文复制引用
郭永卓,王重阳,郝嘎子,肖磊,王苏炜,姜炜..静电喷雾技术制备Al@CL-20基复合含能微球的工艺研究[J].含能材料,2025,33(11):1265-1273,9.基金项目
国家自然科学基金(U2141202,21805139),中央高校基本科研业务费专项资金(30923011018) National Natural Science Foundation of China(No.U2141202,21805139)and the Fundamental Research Funds for the Central Universities(No.30923011018) （U2141202,21805139）
