Effects of temperature and pressure on the glass transitions of plastic bonded explosives

Abstract

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Stabilization of ammonium azide particles through its microencapsulation with some organic coating agents

“…The organic solvent phase (chloroform or acetone) was removed by distillation at reduced pressure to achieve a single liquid phase system in which the coating agent precipitates on the surface of the crystals of the NH 4 N 3 . Then, the coated NH 4 N 3 particles were filtered and washed with 20 ml n-hexane as an inert solvent three times and dried at an ambient temperature [35].…”

Molecular dynamics study of binding energies, mechanical properties, and detonation performances of bicyclo-HMX-based PBXs

“…Therefore, researches on the composite material PBXs have been becoming a hot topic. Heretofore, a lot of effort has been put into studying the explosives and polymers with experimental measurements [19][20][21][22][23], calculations or simulations by quantum mechanics (QM), molecular mechanics (MM), and molecular dynamics (MD) [24][25][26]. Recently, a series of MD simulations have also been performed by us to study the structures and properties of TATB (2,4,6-trinitrobenzene-1,3,5-triamine), HMX, TNAD (trans-1,4,5,8-tetranitrodecahydropyrazino [2,3-b]pyrazine), and CL-20 (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane)-based PBXs [27].…”

Mesoscopic simulation of aggregate behaviour of fluoropolymers in the TATB-based PBX

“…In this case, the TATB-based PBX would have excellent mechanical properties and good safety performance. In addition, considering all the calculations being of the same fluoropolymer weight fractions, it is obvious that fluoropolymers at 400 K are of a larger aggregate volume and greater rheology than those at 298 and 350 K, which can shed some light on the fluoropolymer's softening endothermic transition at a temperature ranging from 365 to 382 K, and the amorphous phase of fluoropolymers was found at 400 K, which is inconsistent with experimental observation [23].…”