Prediction of Chemical Life Time for a Propellant by Differents Kinetic Models

Propellants are decomposed slowly during storage. So each propellant has useful life time which more than that time propellant is not safe and cannot used. Tracing of propellant stabilizer consumption is one of the important methods for determination of storage life time period of a propellant. In this article by accelerated aging on a double-base propellant and then chemical extraction of stabilizer, Tracing of propellant stabilizer consumption is done. Kinetic models which used are zero order, First order, Second order, NATO method and Bertholet. Then kinetic parameters of aging reaction and storage life time of propellant for 50% consumption of stabilizer by different methods are estimated Finally predicted lifetime for Zero order, First order, Second order, NATO method and Bertholet are 58, 45, 35, 31 and 14 years respectively.