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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.
Rocznik
Tom
Strony
369--384
Opis fizyczny
Bibliogr. 38 poz., rys., tab.
Twórcy
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
autor
- Norinco Group Test and Measuring Academy, Huayin 714200, China
autor
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d080d6ac-276b-4728-9b05-27a811f9dc9e