Green Fabrication of Nanoscale Energetic Molecular Perovskite (H2dabco)[Na(ClO4)3] with Reduced Mechanical Sensitivity

• Autorzy: Hu Li-shuang , Du Zelin , Liu Yang , Gong Shida , Guang Chunyu , Li Xin , Yang Zhi , Jia Qi , Liang Kaili

Identyfikatory

DOI

10.22211/cejem/142572

• Języki publikacji: EN

Abstrakty

EN

High-energy-density molecular perovskite energetic materials with high detonation performance have attracted much attention, but poor safety performance has limited their potential applications. In this paper, nano sodium perchlorate-based molecular perovskite (H2dabco)[Na(ClO4)3] (nano DAP-1) was fabricated by green ball-milling technology. The structure and morphology of the samples were characterized and the results showed that nano DAP-1 with nearly spherical morphology has a narrow particle size distribution, < 1 μm. The thermal decomposition properties were investigated by differential scanning calorimetry (DSC). The exothermic peak of nano DAP-1 thermal decomposition was 330.0 °C, a decrease of 51.7 °C compared with that of raw DAP (381.7 °C). The apparent activation energy (Ea) of nano DAP-1 was calculated to be 160.9 kJ·mol–1, which is lower than that of raw DAP-1 (168.6 kJ·mol–1). Mechanical sensitivity studies showed that nano DAP-1 (H50: 64 cm) exhibited a lower impact sensitivity than that of the raw DAP-1 (H50: 51 cm). This work provides a simple and effective way for improving the thermal decomposition properties and safety performance of molecular perovskite energetic materials.

Słowa kluczowe

EN

molecular perovskite; (H2dabco)[Na(ClO4)3]; ball milling; thermal decomposition; mechanical sensitivity

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2021
• Tom: Vol. 18, no. 3
• Strony: 369--384
• Opis fizyczny: Bibliogr. 38 poz., rys., tab.

Twórcy

autor

Hu Li-shuang

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Du Zelin

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Liu Yang

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Gong Shida

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Guang Chunyu

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Li Xin

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Yang Zhi

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

autor

Jia Qi

• Norinco Group Test and Measuring Academy, Huayin 714200, China

autor

Liang Kaili

• School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

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