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Nanostructuring of Pure and Composite‐Based K6 Formulations with Low Sensitivities
Author(s) -
Blas Lucia,
Klaumünzer Martin,
Pessina Florent,
Braun Silke,
Spitzer Denis
Publication year - 2015
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201500187
Subject(s) - nano , particle size , materials science , evaporation , sensitivity (control systems) , composite number , particle (ecology) , mixing (physics) , raw material , chemical engineering , nanotechnology , analytical chemistry (journal) , composite material , chemistry , chromatography , thermodynamics , organic chemistry , physics , oceanography , quantum mechanics , electronic engineering , engineering , geology
The aim of this work was to desensitize keto‐RDX, respectively 2‐oxo‐1,3,5‐trinitro‐1,3,5‐triazacyclohexane (K6). For this purpose, two different methods were employed. First, nano‐K6 was produced by means of the Spray Flash Evaporation process. Particles with a median size of 74 nm were obtained. Sensitivity to friction and electrostatic discharge were reduced by downscaling particle size of K6. Second, due to their molecular analogy, the mixing of K6 and RDX was studied. For that reason, a physical nanometric mixture of K6 and RDX was produced by the same technique. In the latter case, an inter‐particular synergy between both compounds was noticed but without forming a cocrystal. The median particle size of the mixture is about 82 nm, and its sensitivity is between the ones of raw nano‐materials concerning friction and electrostatic discharge. Moreover, the mixture is less sensitive to impact (3.03 J) than nano‐K6 (<1.56 J) and nano‐RDX (threshold is 2.0 J).