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Thermal behaviors of a novel N-oxide amphoteric energetic compound 4,6-diamino-3-hydroxy-2-oxo-2,3-dihydro-1,3,5-triazine-1-oxide
Ist Teil von
Journal of thermal analysis and calorimetry, 2023-12, Vol.148 (24), p.14215-14223
Ort / Verlag
Cham: Springer International Publishing
Erscheinungsjahr
2023
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
To evaluate thermal properties and promote the application of novel
N
-oxide amphoteric energetic compound 4,6-diamino-3-hydroxy-2-oxo-2,3-dihydro-1,3,5-triazine-1-oxide (DAOTO), thermal behaviors of DAOTO were studied systematically by differential scanning calorimeter (DSC), thermogravimetric analyzer (TG/DTG) and thermogravimetric-mass-infrared spectrometry (TG-MS-FTIR) techniques. Results showed that DAOTO has only an obvious exothermic decomposition process during the range of 250 ~ 350 °C with an extrapolated starting point temperature (
T
e
) of 291.6 °C, a peak temperature (
T
p
) of 320.6 °C, a heat release of 1317 J g
−1
and a corresponding mass loss of ~ 17%, at a heating rate of 10 °C min
−1
, and the kinetic equation of thermal decomposition process was obtained. The main thermal decomposition gas products of DAOTO are H
2
O, NH
3
and CO, and the possible thermal decomposition process was analyzed. Besides, the specific heat capacity of DAOTO at 298.15 K was determined as 1.14 J g
−1
K
−1
, and adiabatic time-to-explosion was calculated to be a certain value between 100 and 105 s. This work proved DAOTO having a good thermal stability and provided theoretical support for the application of DAOTO.