Study of thermal decomposition of a smokelles propellant

Química Nova

Universidade Presbiteriana Mackenzie, São Paulo, Brasil¹  Matos, Jivaldo do Rosário¹  Andrade, Jony¹  Bezerra, Eduardo M.¹  Universidade de São Paulo, São Paulo, Brasil¹  Suárez-Iha, Maria Encarnación Vázquez¹  Instituto Tecnológico de Aeronáutica, São José dos Campos, Brasil¹  Iha, Koshun¹  Frutuoso, Antonio Gonçalves¹  Rocco, José Atílio Fritz Fidel¹  Universidade de São Paulo, São Paulo¹ 

关键词: thermal analysis;    smokeless;    solid propellants.;   

DOI  :  10.1590/S0100-40422008000200021

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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 1.94x106 min-1.

【 授权许可】

Unknown