CL‐20 Based Ultraviolet Curing Explosive Composite with High Performance

Guo, Hao; Xu, Shuai; Gao, Haijun; Geng, Xin; An, Chongwei; Xu, Chuanhao; Li, Qianbing; Wang, Shuang; Ye, Baoyun

doi:10.1002/prep.201900133

Cited by 17 publications

(4 citation statements)

References 13 publications

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“…In addition, the influence of solid filler particles of nano-CL-20 explosive in the mixed system on the photocuring reaction was not clear, which needed further experimental exploration. In 2019, An Chongwei and co-workers [57] continued to study the capable ink formula for MEMS. The author used TPO as a photoinitiator, PUA was photocuring adhesive, CL-20 as a explosives prepared photocuring energetical ink.…”

Section: Figure 15 the Main Component Of The Photocurable Adhesivementioning

confidence: 99%

Research Progress on Photocurable 3D Printing of Propellants and Explosives

Tan¹,

Hu²,

Lu³

et al. 2023

J. Phys.: Conf. Ser.

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Compared to the traditional field of propellants and explosives preparation molding technology, photocuring 3D printing which could realize the precise molding and control of propellants and explosives manufacturing performance, and overturn the traditional manufacturing concept of propellants and explosives, had attracted close attention of scientists all over the world and great progress had been made in the field of propellants and explosives. According to the technical characteristics and application direction of photocuring 3D printing, this paper summarizes the research progress of photocurable 3D printing propellants and explosives around the world, analyzes the problems in the research of photocurable 3D printing propellants and explosives, and points out the importance of new adhesives for photocurable 3D printing propellants and explosives. In addition, it also summarizes the development direction and trend of photocurable adhesive, providing a reference for the application of 3D printing technology in propellants and explosives.

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Section: Figure 15 the Main Component Of The Photocurable Adhesivementioning

confidence: 99%

Research Progress on Photocurable 3D Printing of Propellants and Explosives

Tan¹,

Hu²,

Lu³

et al. 2023

J. Phys.: Conf. Ser.

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“…Direct writing is a type of 3D printing that can be used to create energetic materials by adding appropriate binders and solvents to the material, forming a direct ink and molding it through direct printing. This innovative approach has great potential for creating new forms of energetic materials [4][5][6][7][8]. Domestic and foreign academics have conducted a number of investigations on the direct writing printing technique for energetic materials.…”

Section: Introductionmentioning

confidence: 99%

Design of TDI modified oil‐in‐water emulsion and its application in explosive ink

Han

Xie²,

Deng

et al. 2023

Propellants Explo Pyrotec

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In order to solve the short stabilization time of the water‐in‐oil emulsion binder system and the shortcomings of the critical blast size of the explosive ink molding sample, a water‐in‐oil emulsion binder was designed with polyvinyl alcohol (PVA) aqueous solution as the aqueous phase, fluorocarbon resin (FEVE) ethyl acetate solution as the oil phase, and toluene diisocyanate (TDI) added to modify the water‐in‐oil emulsion binder. The hexanitrohexaazaisowurtzitane(CL‐20)based explosive ink was made by incorporating submicron CL‐20 into the binder system, and the print‐formed samples were tested for microscopic morphology, crystallographic analysis, mechanical susceptibility, and detonation transmission performance. The results showed that the explosive ink‘s viscosity was moderate and suitable for direct printing, and the formed sample‘s surface particles were uniformly dispersed and had a honeycomb structure. The crystal form of CL‐20 explosive in the explosive ink did not change, the molded sample‘s impact and frictional sensitivities were 1 J and 32 N lower than those of submicron CL‐20, respectively, and the detonation velocity of the molded sample was 6655 m/s. The critical detonation size and critical detonation thickness were 1×0.0078 mm and 0.1 mm, respectively, and a critical detonation corner turning of 90°–160° could be achieved. The results show that the prepared binder system is stable for a long time, and the explosive ink molding samples have excellent blast transmission performance.

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“…Yang [19] also found APNIMMO accelerated decomposition of CL-20 resulted from the degradation of crystal lattices. For 3D printing of energetic materials, explosive inks, propellant slurries containing CL-20 have been stud- ied, including printability, detonation, and combustion performance [20,21]. However, the thermal behavior and decomposition kinetics of propellant with photosensitive resin binder were not yet studied in the previous study.…”

Section: Introductionmentioning

confidence: 99%

Thermal Decomposition Performance of CL‐20‐Based Ultraviolet Curing Propellants

Gao¹,

Li²,

Yang

et al. 2022

Propellants Explo Pyrotec

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Photocuring formulas were designed for 3D printing technology used in forming propellants, explosives, and pyrotechnics. Thermal performance is an essential part of the comprehensive performance of this kind of formula. In this paper, a formula consisting of epoxy acrylic resin (EA) as binder and hexanitrohexaazaisowurtzitane (CL‐20) as the energetic additive was developed and printed by material extrusion 3D printing technology. The thermal decomposition behavior was investigated by the differential scanning calorimetry (DSC) method. Furthermore, the decomposition kinetics was calculated and analysed based on Kissinger‐Akahira‐Sunose (KSA) method. In addition, species and contents of gaseous products during decomposition were measured using the DSC‐TG‐FTIR‐MS method. The results from these several techniques were discussed comprehensively. It was shown that the resin binder has great effects on the decomposition of CL‐20. It was found that the interaction between resin and CL‐20 led to two exothermic processes in the decomposition of the compound. Also, there was no overlap in the activation energy between the two processes, with 149.23 kJ/mol for the first process and 164.41 kJ/mol for the second process.

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CL‐20 Based Ultraviolet Curing Explosive Composite with High Performance

Cited by 17 publications

References 13 publications

Research Progress on Photocurable 3D Printing of Propellants and Explosives

Research Progress on Photocurable 3D Printing of Propellants and Explosives

Design of TDI modified oil‐in‐water emulsion and its application in explosive ink

Thermal Decomposition Performance of CL‐20‐Based Ultraviolet Curing Propellants

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