Publicado 6 números por año
ISSN Imprimir: 2150-766X
ISSN En Línea: 2150-7678
Indexed in
THERMAL DECOMPOSITION KINETICS OF RDX-BASED PROPELLANTS UNDER DIFFERENT PRESSURES
SINOPSIS
The thermal decomposition of RDX-based propellants with different RDX contents (40, 30, and 10 wt%) was characterized by high-pressure differential scanning calorimetry at 0.1, 2.0, and 4.0 MPa. The thermal decomposition activation energy of RDX-based propellants with different solid contents and at different pressures was calculated using the Friedman-Reich-Levi, ASTM E698, and Flynn-Wall-Ozawa methods, and the kinetic parameters were calculated using isoconversional methods. The results showed that the differential scanning calorimetry curves of 40 and 30 wt% RDX propellants presented a double peak. The second decomposition peak was more obvious with an increase in RDX content. With an increase in the pressure, the peak temperature decreased and the decomposition heat increased.
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