Synergistic effect of nitrocellulose coating on structural and reactivity stabilization of ammonium nitrate oxidizer

Abdelaziz, Amir; Trache, Djalal; Tarchoun, Ahmed Fouzi; Boukeciat, Hani; Pal, Yash; Thakur, Sourbh; Pang, Weiqiang; Klapötke, Thomas M.

doi:10.1016/j.dt.2024.04.017

Defence Technology

2024

DOI: 10.1016/j.dt.2024.04.017

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Synergistic effect of nitrocellulose coating on structural and reactivity stabilization of ammonium nitrate oxidizer

Amir Abdelaziz,

Djalal Trache,

Ahmed Fouzi Tarchoun

et al.

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2024

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Cited by 2 publications

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Regulation of Catalysts on Tightly Packaged Solid Propellant Energetic Particles: High Combustion Performance with Low Temperature Sensitivity

Tang,

Chen,

et al. 2024

Langmuir

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Although the effectiveness of combustion catalysts promoting the combustion performance of solid propellant (SP) was identified in many research studies, its regulation on the temperature sensitivity coefficient of burning rate (δ p ) has been rarely explored, where SP with low δ p is a big challenge with little progress. Herein, several ammonium perchlorate (AP)-enriched (>70 wt %) pomegranate-structured SP energetic particles (SPPs), AP/nitrocellulose (NC)/Al (SPP), SPP/CoWO4-rGO (SPP-Co), SPP/Bi2WO6-rGO (SPP-Bi), and SPP/CuCo2O4/GO (SPP-Cu), were prepared by the electrospray granulation method, tightly packaging AP with high-efficiency catalysts to promote its reactivity and reduce temperature sensitivity. The pressurization rates of SPPs in a constant volume combustion chamber at 50, 0, and −40 °C were obtained to determine δ p . The burning rates of SPP-Co, SPP-Bi, and SPP-Cu loose strips are 0.319, 0.312, and 0.356 m/s, which are increased by 11.1%, 8.7%, and 24.0% compared to that of SPP (0.287 m/s), respectively. The peak pressures and pressurization rates of SPP-Co, SPP-Bi, and SPP-Cu at 0 °C are increased by 18.8%, 10.1%, and 9.1% and 62.3%, 67.1%, and 64.1% compared with SPP, respectively, indicating that these catalysts significantly accelerate the combustion process. Compared with SPP, the δ p of SPP-Co, SPP-Bi, and SPP-Cu decreased by 26.6%, 60.6%, and 24.7% at 0–50 °C and 19.5%, 61.6%, and 27.6% at −40–0 °C, respectively. It suggests that the Bi2WO6-rGO catalyst reduces the δ p by 61% at −40–50 °C, exhibiting the optimal δ p regulation performance. This research introduces a novel approach to lower the δ p from the chemical by tightly packaging temperature-sensitive AP with high-efficiency catalysts.

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Regulation of Catalysts on Tightly Packaged Solid Propellant Energetic Particles: High Combustion Performance with Low Temperature Sensitivity

Tang,

Chen,

et al. 2024

Langmuir

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Desensitization of spherical CL-20 composites by embedding insensitive nanosized energetic crystals

Xue,

Xu,

Qin

et al. 2024

CrystEngComm

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Synergistic effect of nitrocellulose coating on structural and reactivity stabilization of ammonium nitrate oxidizer

Cited by 2 publications

References 77 publications

Regulation of Catalysts on Tightly Packaged Solid Propellant Energetic Particles: High Combustion Performance with Low Temperature Sensitivity

Regulation of Catalysts on Tightly Packaged Solid Propellant Energetic Particles: High Combustion Performance with Low Temperature Sensitivity

Desensitization of spherical CL-20 composites by embedding insensitive nanosized energetic crystals

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