Tunable continuous production of RDX from microns to nanoscale using polymeric additives

Pessina, Florent; Schnell, Fabien; Spitzer, Denis

doi:10.1016/j.cej.2016.01.083

Cited by 27 publications

(24 citation statements)

References 31 publications

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“…The Spray Flash Evaporation (SFE) process has been developed and patented in the NS3E laboratory at ISL [23,24]. The process was previously described in details by Risse et al [10,11] and Pessina et Spitzer [12,25]. It consists in spraying a pressurized low boiling solvent containing the product to be crystallized through a heated hollow cone nozzle, in a vacuum chamber.…”

Section: Experimental Set-upmentioning

confidence: 99%

“…In 2012, Risse et al [10] introduced the Spray Flash Evaporation (SFE) process to reduce particles size of energetic materials at submicron scale. In this way, recrystallization of pure products like HMX [11], RDX [12], K-6 [13] was achieved with particle sizes of 116 nm, 500 nm and 74 nm respectively. Since then, this process has been extended to drugs [14].…”

Section: Introductionmentioning

confidence: 99%

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Nanocrystallisation of Ammonium DiNitramide (ADN) by Spray Flash Evaporation (SFE)

Berthe

Schnell

Boehrer³

et al. 2018

Propellants Explo Pyrotec

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Ammonium DiNitramide (ADN) is an interesting oxidizer to replace ammonium perchlorate in the composition of solid propellants. In this study, Spray Flash Evaporation (SFE) is presented as a new technology to enhance stability of ADN by crystallization of nanoparticles. The crystallinity and purity of the compound was confirmed by X‐Ray Diffraction and Raman analysis. An average diameter of spherical particles around 32 nm (solution of ethyl acetate) and 34 nm (solution of methyl acetate) was measured by Scanning Electronic Microscopy (SEM). Furthermore, the downsizing to nanoscale induces a slower moisture absorption kinetic under 55 % of relative humidity, a reduction of the critical diameter of detonation and the desensitization to impact.

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Section: Experimental Set-upmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanocrystallisation of Ammonium DiNitramide (ADN) by Spray Flash Evaporation (SFE)

Berthe

Schnell

Boehrer³

et al. 2018

Propellants Explo Pyrotec

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View full text Add to dashboard Cite

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“…Nanosized cocrystals and composites could be produced by Spitzer et al [10]. Recently, Pessina et al showed that it was possible to modify the size of the RDX particles using PEG or PVP inside the SFE process with decreasing size using PVP as a growth inhibitor and increasing size with PEG as growth promoter [11].…”

Section: Introductionmentioning

confidence: 99%

“…The nanocrystallization is performed using the SFE process developed in the NS3E laboratory; it has already been presented elsewhere [9][10][11]. The solution containing the explosive is maintained under a pressure of 4 3 10 6 Pa in a container and then sprayed through a nozzle heated at 160 8C in the atomization chamber which is under vacuum (< 1000 Pa).…”

Section: Introductionmentioning

confidence: 99%

Trinitrotoluene Nanostructuring by Spray Flash Evaporation Process

Sève

Pichot

Schnell

et al. 2017

Prop., Explos., Pyrotech.

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A lot of studies aim to decrease the size of particles to the nanoscale, leading the material to a modification of its intrinsic properties. Here, we show the possibility to synthesize nanoscaled 2,4,6‐trinitrotoluene (TNT) using the Spray Flash Evaporation process. The crystallization of TNT is performed using different solvents. The sizes and the morphology of the TNT particles are analyzed by scanning electron microscopy. The influence of the solvents depending on their properties is discussed. Hexanitrostilbene (HNS) is used as a growth inhibitor to limit the size of the resulting TNT particles. Finally, nanoparticles with mean sizes of 50 nm are obtained.

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“…As one class of them, nano-explosives have attracted much attention due to their potential application in micro thrusters [6] and micro-electromechanical systems [7]. Recently, benefiting from the development of nanotechnology, a variety of nano-explosives such as 1,3,5-trinitro-1,3,5-triazinane (RDX) [8,9], HMX [10,11], 1,1-diamino-2,2-dinitroethene (FOX-7) [12,13], 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazawurt-zitane (CL-20) [14,15] and TATB [16,17] have been successfully prepared by various approaches. With respect to LLM-105, Zhang et al [18] utilized a spray-crystalline method to prepare submicron size LLM-105.…”

mentioning

confidence: 99%

Facile Fabrication of Nanoparticles Stacked 2,6‐diamino‐3,5‐dinitropyrazine‐1‐oxide (LLM‐105) Sub‐microspheres via Electrospray Deposition

Huang

Liu

Ding

et al. 2017

Propellants Explo Pyrotec

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In this study, nanoparticles stacked 2,6‐diamino‐3,5‐dinitropyrazine‐1‐oxide (LLM‐105) sub‐microspheres were successfully fabricated by electrospray deposition. These monodisperse sub‐microspheres with a diameter from 200–500 nm are composed of 50 nm nanoparticles, and after preserved six months these spheres retain the same structure and morphology. The effect of process parameter including flow rate and nozzle size on the size and morphology of sub‐microsphere is investigated. The results show that, for a given solution concentration the nozzle size has little effect while the flow rate shows a significant effect. The X‐ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT‐IR) results exhibit that the as‐prepared sub‐microspheres have the same crystal and chemical structure as the raw materials. The thermal behavior performed by simultaneous thermal analysis (TG‐DSC) verifies that in comparison to the raw materials sub‐microspheres have a lower onset degradation temperature.

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Tunable continuous production of RDX from microns to nanoscale using polymeric additives

Cited by 27 publications

References 31 publications

Nanocrystallisation of Ammonium DiNitramide (ADN) by Spray Flash Evaporation (SFE)

Nanocrystallisation of Ammonium DiNitramide (ADN) by Spray Flash Evaporation (SFE)

Trinitrotoluene Nanostructuring by Spray Flash Evaporation Process

Facile Fabrication of Nanoparticles Stacked 2,6‐diamino‐3,5‐dinitropyrazine‐1‐oxide (LLM‐105) Sub‐microspheres via Electrospray Deposition

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