Storage stability of solid rocket fuels. 2. Effect of oxidizer loadings

Kishore, Kaushal ; Pai Verneker, Vencatesh R. ; Prasad, Ganga (1978) Storage stability of solid rocket fuels. 2. Effect of oxidizer loadings Fuel, 57 (1). pp. 22-24. ISSN 0016-2361

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Ageing behaviour, leading to ballistic changes, has been studied as a function of oxidizer loading in polystyrene/ammonium perchlorate solid-propellants. The ageing studies were carried out at 100°C in air. Change in burning rate decreased as the oxidizer loading increased from 75 to 80%. The change in thermal decomposition rates both at 230 and 260°C also decreased as the oxidizer loading in the propellants increased. The shapes of the plots of the changes in burning rate and thermal decomposition rate (230 and 260°C) at different storage times for different oxidizer-loaded propellants seem to be exactly similar. These results lead to the conclusion that the thermal decomposition of the propellant may be responsible for bringing about the ballistic changes during the ageing process. Infrared studies of the binder portion of the aged propellant indicate that peroxide formation takes place during the course of ageing and that peroxide formation for a particular storage time and temperature increases as the loading decreases.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:32001
Deposited On:18 Mar 2011 14:05
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