Title of article :
Kinetic Study and Thermal Decomposition Behavior of Magnesium-Sodium Nitrate Based on Hydroxyl-Terminated Polybutadiene
Author/Authors :
Abusaidi, Hadi Department of Chemistry and Chemical Engineering - Faculty of Chemistry - Malek-Ashtar University of Technology (MUT) - Tehran, I.R. IRAN , Ghaieni, Hamid Reza Department of Chemistry and Chemical Engineering - Faculty of Chemistry - Malek-Ashtar University of Technology (MUT) - Tehran, I.R. IRAN , Tavangar, Saeed Department of Chemistry and Chemical Engineering - Faculty of Chemistry - Malek-Ashtar University of Technology (MUT) - Tehran, I.R. IRAN
Abstract :
This paper has been utilizing the simultaneous ThermoGravimetric analysis and
Differential Scanning Calorimetry (TG–DSC) to investigate the thermal decomposition of
magnesium-sodium nitrate pyrotechnic composition based HTPB resin. The thermal behaviors of
different samples with various fuel-oxidizer ratio contents were determined. Decomposition kinetic
was investigated by evaluating the influence of DSC heating rate (4, 7, 10, 13 oC/min) on the
behavior of the illumination flares. The results as expected showed that the decomposition
temperature of the illumination flares decreases with the increase in the DSC heating rate, while
thermal decomposition of the sample followed the first-order law. Furthermore, Magnesium-sodium
nitrate illumination flares with HTPB resin have been studied for luminous efficiency by varying
fuel/oxidizer ratio. The kinetic and thermodynamic parameters of the illumination flares
decomposition under ambient pressure were obtained from the resulted DSC data via nonisothermal
methods proposed by ASTM E698 and Flynn-Wall-Ozawa. Also, the critical temperature
of ignition temperature was estimated at about 455 oC.
Keywords :
Luminous efficiency , Non-isothermal , kinetic , Thermal decomposition , Pyrotechnic
Journal title :
Astroparticle Physics
