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3D direct writing and micro detonation of CL-20 based explosive ink containing O/W emulsion binder

Defence Technology（防务技术） 2022年第8期18卷 1340-1348页

作者： Zhan-xiong Xie Chong-wei An Bao-yun Ye Jia-qing Mu Chun-yan Li Min-jie Li Song-jin Liu School of Environment and Safety Engineering North University of ChinaTaiyuanShanxi030051China Shanxi Engineering Technology Research Center for Ultrafine Powder North University of China030051TaiyuanChina No.55 Research Institute of China North Industries Group CorporationChangchun130012China

The booming development of DIW technology present an unprecedented prospect in energetic materials field and has attracted great interest due to its relative simplicity and high flexibility of ***,a novel CL-20 based explosive ink formulation have been developed successfully for MEMS initiation systems via DIW *** designed PVA/GAP into an oil-in-water(O/W)emulsion,in the way that the aqueous solution of PVA as water phase,the ethyl acetate solution of GAP as oil phase,the combination of Tween 80 and SDS as emulsifier,BPS as a curing agent of *** ideal formulation with good shear-thinning rheology properties and clear gel point was prepared using only 10 wt%*** dual-cured network formed during the curing process made the printed sample have good mechanical *** printed samples had satisfactory molding effect without cracks or fractures,the crystal form of CL-20 not changed and the thermal stability have *** of explosive inks via DIW in micro-scale grooves had excellent detonation performances,which critical detonation size was 1×0.045 mm,detonation velocity was 7129 m/s and when the corner reaching 150°can still detonated *** study may open new avenues for developing binder systems in explosive ink formulations.

关键词： Direct writing explosive ink Emulsion binder system CL-20 based energetic composites Micron detonation

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

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Defence Technology（防务技术） 2022年第1期18卷 140-147页

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 School of Environment and Safery Engineering North University of China Taivuan Shanxi 030051PR China Shanxi Engineering Technology Research Centre for Ultrafine Powder North University of China Taiyuan Shanxi030051PR China Huayin Norinco Group Test and Measuring Acudemy Co Id714200 ShanxiChina Zhongkexin Engineering Consulting Co Ltd100000 Beijing China

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 *** 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 *** indicate that the composite material has a fast curing molding speed,its hardness can reach 2H within 8 *** crystal form of CL-20 in the molded sample is still *** CL-20 based UV-curing explosive ink formulation has good compatibility,its apparent activation energy is increased by about 3.5 kj/*** 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 *** 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

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