Estimation of the critical temperature of thermal explosion for azido-acetic-acid-2-(2-azido-acetoxy)-ethylester using non-isothermal DSC |
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Authors: | H -X Gao F -Q Zhao R -Z Hu H -A Zhao H Zhang |
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Institution: | (1) Los Alamos National Laboratory, Los Alamos, NM 87545, USA |
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Abstract: | A method for estimating the critical temperatures (T
b) of thermal explosion for energetic materials is derived from Semenov’s thermal explosion theory and the non-isothermal kinetic
equation dα/dt=A
0
T
B
f(α)e−E/RT using reasonable hypotheses. The final formula of calculating the value of T
b is $
\left( {\frac{B}
{{T_b }} + \frac{E}
{{RT_b^2 }}} \right)
$
\left( {\frac{B}
{{T_b }} + \frac{E}
{{RT_b^2 }}} \right)
(T
b−T
e0=1. The data needed for the method, E and T
e0, can be obtained from analyses of the non-isothermal DSC curves. When B=0.5 the critical temperature (T
b) of thermal explosion of azido-acetic-acid-2-(2-azido-acetoxy)-ethylester (EGBAA) is determined as 475.65 K. |
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Keywords: | |
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