Study of thermal decomposition of a smokelles propellant

Quimica nova

Andrade, Jony¹  Bezerra, Eduardo M.¹  Iha, Koshun¹  Frutuoso, Antonio Gonçalves¹  Rocco, José Atílio Fritz Fidel¹  Suárez-Iha, Maria Encarnación Vázquez²  Matos, Jivaldo do Rosário³ 

[1] Instituto Tecnológico de Aeronáutica, São José dos Campos, Brasil;Universidade de São Paulo, São Paulo;Universidade de São Paulo, São Paulo, Brasil

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-terminatedpolybutadiene (HTPB)/ammonium nitrate (AN) based propellants, so called smokelessformulations, and raw materials were investigated by differential scanning calorimetry(DSC) and thermogravimetry (TG). The thermoanalytical profile of different componentsand of propellant were evaluated and the Arrhenius parameters for the thermaldecomposition of the propellant sample were determined by the Ozawa method.The kinetic parameters of the thermal decomposition of propellant samples weredetermined by DSC measurements. The values obtained for activation energy (Ea)and pre-exponential factor were 163 kJ mol-1 and 1.94x106min-1.

【 授权许可】

CC BY