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BIBTEX RIS

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

2008; Brazilian Chemical Society; Volume: 31; Issue: 2 Linguagem: Inglês

10.1590/s0100-40422008000200021

ISSN

1678-7064

Autores

Jony Andrade, A. G. Frutuoso, Koshun Iha, José Atílio Fritz Fidel Rocco, Eduardo Marcelo Bezerra, Jivaldo do Rosário Matos, Maria Encarnación Vazquez Suárez-Iha,

Tópico(s)

Rocket and propulsion systems research

Resumo

A SMOKELESS PROPELLANT.The thermal decomposition of hydroxylterminated 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 (E a ) and pre-exponential factor were 163 kJ mol -1 and 1.94x10 6 min -1 .

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