文章基本信息

标题：Novel aspects for thermal stability studies and shelf life assessment of modified double-base propellants
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作者：Sherif Elbasuney ; Ashraf.M. A. Elghafour ; Mostafa Radwan 等
期刊名称：Defence Technology
印刷版ISSN：2214-9147
出版年度：2019
卷号：15
期号：3
页码：1-6
DOI：10.1016/j.dt.2018.09.005
出版社：Elsevier B.V.
摘要：Modified DB propellants, based on energetic nitramine (RDX) were manufactured by solventless extrusion process. Thermal stability and shelf life assessment of modified DB propellant were investigated. Shelf life assessment was evaluated using Van't Hoff's formula and artificial aging at 70 °C up to 120 days. Quantification of total heat released and heat flow with aging time was conducted using differential scanning calorimetry (DSC) and thermal activity monitoring (TAMIII) respectively. Modified DB formulation based on 20 wt % RDX demonstrated enhanced thermal stability in terms of controlled heat flow, and slow decomposition reactions at elevated temperature. This formulation demonstrated extended service life up to 56 years compared with reference formulation. These novel finding was ascribed to the high thermal stability of RDX and its compatibility with DB constituents. This manuscript shaded the light on novel and effective approach for thermal stability via monitoring thermal activity with aging.
关键词：Double-base propellant ; Thermal stability ; Artificial aging ; Shelf-life assessment