Article details

Title: Experimental Study Regarding Stabilizer Revival Process on Old Artillery Propellants
Author(s): Traian Rotariu   Doru-Adrian Goga   Sorin-Răzvan Eşanu   Tudor-Viorel Ţigănescu   Marius Cîrmaci   

Abstract: The paper deals with some experimental investigations performed in order to evaluate safety and performance characteristics of old simple base propellants for large caliber ammunition, after a “revival” process consisting in supplementary DPA addition. The revived propellants were tested comparative to new and old propellants of similar composition and geometry. Characterization of new and old propellants was performed using a large range of modern analysis techniques, such as high performance liquid chromatography (HPLC), differential thermal analysis (DTA), differential scanning calorimetry (DSC), vacuum stability, and artificial ageing. Thermal analysis allowed us to determine comparatively the variation of temperature sensitivity and kinetic parameters for old/new propellants and also aged/non-aged propellants. Using HPLC technique, stabilizer (diphenylamine) depletion after artificial ageing was determined and discussed relative to standard evaluation criteria.

Keywords: nitrocellulose, propellant, simple base, diphenylamine, stabilizer.

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