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ISSN: 2667-1344

Research on the application of azido-based energetic plasticizer 1,5-diazido-3-oxopentane in polyether-based solid propellants

1,5-Diazido-3-oxopentane (AZDEGDN) is a promising energetic plasticizer widely used in explosive formulations due to its low sensitivity, low glass transition temperature, and high thermal stability....

Synthesis of melt-castable gem-dinitro derivatives of 4,5,6,7-tetrahydrobenzofurazan and its N-oxide

The synthesis of energetic compounds of the gem-dinitrocarbocycle family, furazan and furoxan fused to dinitrocyclohexane, is reported. The construction of the gem-dinitro moiety was achieved by nitration...

Investigation of the initiatory reactivity of polynitro -amines and -arenes via X-ray photoelectron spectroscopy

•Binding energies in relation to primary homolysis X-NO2 bonds (X = C or N)•Length of the longest X-NO2 bond in relation to binding energies•Binding energies N1s (N-NO2) & O1s (NO2) related to impact...

JWL equation of state parameters for ideal detonation: A comparative study of literature reports, theoretical derivation, and artificial neural network prediction

The Jones-Wilkins-Lee (JWL) equation of state (EOS) is widely used for interpreting the energy release during explosive detonation. Focused on the ideal detonation of high explosives, an artificial...

Qualitatively correlating molecular dynamics simulations and experimental determination of the thermal stability of energetic compounds

Thermal stability is both a fundamental property and an important performance of energetic compounds, and is prone to be understood and predicted by molecular dynamics simulations; still, it is faced...

Exploring the effect of kraft lignin on the stability and decomposition kinetics of nitrated cellulose carbamate

This study systematically investigated the stability and thermo-kinetic properties of a high-energy-density nitrated cellulose carbamate (NCC) system stabilized with Kraft lignin. The performance of...

The polyurethane elastomer-based PBX with excellent cyclic manufacturing performance

•A PBX using thermoplastic polyurethane as a binder has been developed.•The thermoplastic PBX charge column is dense, with good mechanical properties.•Thermoplastic PBX has good cyclic manufacturing...

Simple synthesis of monocyclic pyrimidine-based energetic molecule with “amino–nitro–hydrazino” arrangement

•2,4-Diamino-6-hydrazineyl-5-nitropyrimidine (3) with a monocyclic structure was designed and synthesized by the two-step reaction.•Compound 3 features an alternating “amino–nitro–hydrazino” arrangement.•Compound...

Understanding of the bond dissociation energy of C-NO2 in five- and six-membered N-heteroaromatic derivatives

A clear structure-sensitivity relationship in energetic molecules is beneficial for designing energetic materials. At the molecular level, sensitivity is closely related to the bond dissociation energy...

Kinetic research on the curing reaction of PBT/BPS via FT-IR measurements

To investigate the reaction process between 3,3′-bis(aminomethyl)oxetane/tetrahydrofuran copolymer(PBT) binder and acetylenic curing agents, this study employed bis-propargyl-succinate (BPS) as the...

Research progress on the synthesis of energetic N-oxides based on diazine, triazine and tetrazine

The skeleton structures of azine (including diazine, triazine and tetrazine) are widely used as important candidate for building good performance energetic materials due to their uniform electron distribution,...

Numerical optimization of Hall effect thruster with variation in magnetic field

In the present study, numerical analyses were conducted to enhance the strength of the magnetic field. While electromagnetic coils and permanent magnets have conventionally been used for this purpose,...

Catalytic effects of transition metal oxides on HTPB-based fuel polymer matrices

Low regression rate due to difficult pyrolysis is a major challenge in the practical application of terminated hydroxyl‑terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion. Accelerating...

Influence of ammonium nitrate incorporation on the thermal decomposition kinetics of nitrostarch-based energetic composite

The primary objective of this study was the development of a novel energetic composite formulation, focusing on the elucidation of the influence of incorporating an energetic oxidizer, ammonium nitrate...

Advancing nitrocellulose thermal stability through the incorporation of ion-exchanged ZSM-5 zeolite for enhanced performance

In this study, cellulose nitrate (NC), a highly energetic polymer, was supplemented with two distinct classes of stabilizing agents: the usual diphenylamine (DPA) and zeolite molecular sieves (ZSM-5)...

Trinitroethyl nitropyrazole-3-carboxylates

Image, graphical abstractThe esterification of nitropyrazole-3-carboxylic acids with 2,2,2-trinitroethyl hydrogen sulfate, prepared in situ from trinitroethanol and sulfurochloridic acid, was realized...

Comprehensive analysis of tubular combustion chambers in Turbo-Ramjet engines for enhanced hypersonic propulsion

•The tubular combustion chamber is meticulously designed for Turbo-Ramjet engines at lower Mach numbers, incorporating Turbocharger intake parameters.•Importance of evenly spaced primary, secondary,...

Unleashing the Power of Deep Learning: A Novel Approach for Defect Detection in Solid Rocket Motor

High-Energy Materials (HEMs), particularly those integral to solid rocket motors are linchpins of mission success and safety. Detecting defects within a solid rocket motor is challenging but crucial...

Enhancing energetic features of HTPB binder through nitro-functionalization and nitrocellulose doping

This study presents a double modification strategy to enhance hydroxyl‑terminated polybutadiene (HTPB) properties as an energetic binder. HTPB was chemically nitrated to obtain nitro-HTPB (NHTPB), then...

Impact of temperature and humidity on the thermal decomposition behavior and the ignition characteristics of Si-based pyrotechnic delay composition

This study focuses on analyzing the degradation, ignition, and combustion behavior of a silicon (Si)-based pyrotechnic delay mixture. A comparative analysis is conducted between a fresh sample and one...

Study on the influence of temperature and compressive stress on mechanical properties of porous propellants with special shapes

The mechanical properties of new propellants are an important basis for studying the internal stress propagation and damage mechanism of barreled weapons during use. Taking the porous special-shaped...

Evaluation of burning rate in ECSP based on the voltage, pressure and initial temperature

Electrically controlled solid propellants (ECSP) have attracted extensive attention due to the tunable burning rate. The burning rate of ECSP determines the applying background of propellants and rocket...

Preparation and performance characterization of HMX/F2602/GQDs microspheres by spray drying method

GQDs possess numerous active sites, nano-microstructures, and photo-induced conductivity characteristics. In this study, spray drying technology was employed to explore the application of graphene quantum...

Study on erosion prediction model of high-energy gun propellant based on machine learning

The erosion characteristics is an important reference index that affects the popularization and application of RDX-based high-energy gun propellant containing energetic plasticizer Diazidonitrazapentane...

Thermal decomposition behavior and safety assessment of Diazidoglyoxime (DAzG) synthesis for TKX-50 production: A calorimetric and risk classification study

Diazidoglyoxime (DAzG), a pivotal intermediate in the synthesis of dihydroxylammonium 5,5′-bis-tetrazole-1,1′-diolate (TKX-50)—a high-energy-density explosive with growing applications in defense and...

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