Estudo da decomposição térmica de propelente sólido compósito de baixa emissão de fumaça

Química Nova

Jony Andrade²  Antonio Gonçalves Frutuoso²  Koshun Iha²  José Atílio Fritz Fidel Rocco²  Eduardo M. Bezerra²  Jivaldo Do Rosário Matos¹  Maria Encarnación Vázquez Suárez-iha¹ 

[1] ,Instituto Tecnológico de AeronáuticaSão José dos Campos SP ,Brasil

关键词: thermal analysis;    smokeless;    solid propellants;   

DOI  :  10.1590/S0100-40422008000200021

来源: SciELO

【 摘 要 】

The thermal decomposition of hydroxyl-terminated polybutadiene (HTPB)/ammonium nitrate (AN) based propellants, so called smokeless formulations, and raw materials were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). The thermoanalytical profile of different components and of propellant were evaluated and the Arrhenius parameters for the thermal decomposition of the propellant sample were determined by the Ozawa method. The kinetic parameters of the thermal decomposition of propellant samples were determined by DSC measurements. The values obtained for activation energy (Ea) and pre-exponential factor were 163 kJ mol-1 and 1.94x10(6) min-1.

【 授权许可】

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