Prediction of the Aging Process of Plasticized Octogen Using a Mathematical Model of Slow Decomposition Kinetics
A. A. Starostina, P. S. Belukhina, S. E. Grebennikova, Yu. V. Sheykov
RFNC, All-Russian Research Institute of Experimental Physics, Sarov, Russia
Keywords: explosive substance (ES), guaranteed shelf life, kinetic model (KM) of thermal decomposition, thermal decomposition, heat release, accelerated aging, activation energy, differential thermal analysis (DTA), thermogravimetry (TG)
Abstract
An approach to determining the degree of decomposition of plasticized octogen at different ambient temperatures is presented. A scheme of works aimed at determining the temperature-time conditions of accelerated aging of plasticized octogen and establishing guaranteed periods of storage and operation of plasticized octogen is proposed. For calculations, a model of kinetics of slow decomposition of the studied explosive substance, constructed on the basis of heat release data obtained by differential scanning calorimetry, is used. The application of the presented model allows to estimate the shelf life and operation of explosive substances based on the degree of decomposition indicator.
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