Performances and direct writing of CL-20 based ultraviolet curing explosive ink  

作　　者：Sheng Kong Dong-jie Liao Yu-meng Jia Chong-wei An Chun-yan Li Bao-yun Ye Bi-dong Wu Jing-yu Wang Hao Guo Zhi-wei Hong 

机构地区：[1]School of Environment and Safery Engineering,North University of China Taivuan Shanxi 030051,PR China [2]Shanxi Engineering Technology Research Centre for Ultrafine Powder,North University of China Taiyuan Shanxi,030051,PR China [3]Huayin Norinco Group Test and Measuring Acudemy Co,Id,714200 Shanxi,China [4]Zhongkexin Engineering Consulting Co,Ltd,100000 Beijing China

出　　处：《Defence Technology（防务技术）》2022年第1期140-147,共8页Defence Technology

基　　金：Equipment Development Department of China(61406190401).

摘　　要：A new type of explosive ink formulation that can be quickly cured was prepared with unsaturated polyester as binder,styrene as active monomer,2,4,6-trimethylbenzoyl-diphenylphosphine oxide as photoinitiator,and hexanitrohexaazaisowurtzitane(CL-20)as the main explosive.Then the explosive inkdirect writing technology was used to charge the micro-sized energetic devices,the curing mechanism of the explosive ink was discussed,and the microstructure,safety performance and explosive transfer performance of the explosive ink molded samples were tested and analyzed.Results indicate that the composite material has a fast curing molding speed,its hardness can reach 2H within 8 min.The crystal form of CL-20 in the molded sample is still type.The CL-20 based UV-curing explosive ink formulation has good compatibility,its apparent activation energy is increased by about 3.5 kj/mol.The composite presents a significant reduction in impact sensitivity and its characteristic drop height can reach 39.8 cm,whichis about 3 times higher than the raw material.When the line width of charge is 1.0 mm,the critical thickness of the explosion can reach 0.015 mm,and the explosion velocity is 7129 m/s when the charge density is 1.612 g/cm^(3).

关 键 词：MEMS Tuze CL-20 UV-CURING Explosive ink Detonation perfor mance 

分 类 号：TQ560.1[化学工程—炸药化工]