Application of co-crystallization method for the production of ammonium perchlorate/ammonium nitrate oxidizer for solid rocket propellants

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 487, P. 150654 - 150654

Published: March 24, 2024

Language: Английский

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Interfacial self-assembling of nano-TATB@PDA embedded football-like CL-20 co-particles with reduced sensitivity

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 151010 - 151010

Published: April 4, 2024

Language: Английский

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Physical cross-linked network κ-carrageenan/chitosan/NTO composites: Enhanced energy release efficiency and reduced corrosivity of NTO

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 306, P. 141564 - 141564

Published: March 1, 2025

Language: Английский

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Construction of core–shell energetic composites via in-situ covalent grafting of a fluoro-polymer for enhanced mechanical and thermal properties

Applied Surface Science, Journal Year: 2025, Volume and Issue: 687, P. 162267 - 162267

Published: Jan. 2, 2025

Language: Английский

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Preparation of microstructure controlled spherical co-aggregated composite energetic materials: Synergistic enhancement of safety and thermal stability of CL-20

Powder Technology, Journal Year: 2025, Volume and Issue: 453, P. 120634 - 120634

Published: Jan. 8, 2025

Language: Английский

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Effective desensitization of composite materials HMX@PDA by insensitive DAAF: To improve safety performance

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 698, P. 134486 - 134486

Published: June 20, 2024

Language: Английский

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Dye Decorated Ammonium Perchlorate with Fast Decomposition and High Safety Performance

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 24, 2024

Abstract Enhancing the thermal decomposition efficiency and safety of ammonium perchlorate (AP) is far‐reaching significance in composite propellants. Most catalysts act well on AP, however, synergistically achievements fastened improved mechanical are still challenge. Herein, neutral red (NR) selected from typical dyes through theoretical calculations, acting as an organic decoration AP crystal with performances. Among four dyes, NR demonstrated highest adsorption energy evident charge transfer at interface. Following preparations a freeze‐drying technique obtained quasi‐homogeneous energetic (NR‐AP‐5%). The large interaction force between promoted rupture chemical bonds Cl O proved by TG‐MS, showing excellent energy‐release performance decreased exothermic peak 437.0 to 355.5 °C. Correspondingly, activation reduced 213.59 107.72 kJ mol −1 , largely increased heat release 447.29 1014.86 J g . In addition, inert endowed considerable advances performances achieving remarkably impact friction sensitivity 35 288 N, respectively. This unique assembly structure provides novel strategy achieve high‐effective catalysis for functional

Language: Английский

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Regulating safety and energy release of energetic materials by manipulation of molybdenum disulfide phase

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 411, P. 128603 - 128603

Published: Jan. 21, 2021

Language: Английский

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One-step rapid preparation of CL-20/TNT co-crystal assembly and spheroidized coating based on droplet microfluidic technology

Defence Technology, Journal Year: 2022, Volume and Issue: 27, P. 251 - 262

Published: Oct. 7, 2022

Energetic materials pose challenges in preparation and handling due to their contradictory properties of high-energy low-sensitivity. The emergence co-crystal explosives is a new opportunity change this situation. If the explosive coated into spherical particles with uniform particle size distribution, contradiction can be further reduced. Therefore, binder-coated hexanitrohexaazaisowurtzitane/2,4,6-trinitrotoluene (CL-20/TNT) microspheres were prepared by droplet microfluidic technology work. coating effects different binder formulations nitrocellulose (NC) NC/fluorine rubber (F2604) on spheres studied. scanning electron microscopy (SEM) results showed that use above binders provide regular morphology, distribution good dispersion. X-ray diffraction (XRD), fourier-transform infrared (FT-IR), differential calorimetry (DSC) thermo-gravimetric (TG) methods employed compare microspheres, raw material pure co-crystal. formation CL-20/TNT was confirmed, exhibited better thermal stability than In addition, mechanical sensitivity combustion performance more insensitive CL-20 co-crystal, displayed excellent self-sustained theoretical detonation performance. This study provides method for fast, simple one-step coating, level.

Language: Английский

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A review on the preparation and characterization methods of spherical explosive crystals

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 27, P. 3098 - 3118

Published: Oct. 19, 2023

Spherical explosive crystals refer to explosives with a spherical morphology. Compared polyhedral crystals, do not have sharp edges or corners, and lower probability of generating hot spots due the corners when subjected friction impact. Therefore, mechanical sensitivity better safety. Moreover, morphology can endow more excellent thermal properties, charging performance, energy output, properties. Due significant improvement comprehensive performance through crystal spheroidization, research on spheroidization has received high attention from countries around world. However, there are currently few review articles study crystals. In order help people carry out this article summarizes current methods for preparing characterizing based systematic investigation mechanism moreover analyzes process characteristics effects. Finally, challenges in development is prospected, hoping provide positive references preparation application

Language: Английский

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