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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimir: 2150-766X
ISSN On-line: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2014008809
pages 111-122

COMBUSTION PERFORMANCE OF TRIPLE-BASE PROPELLANTS AFTER HOT WATER IMMERSIONS

Fu-Yang Zhang
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Xin Liao
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Ze-Shan Wang
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

RESUMO

The different ingredients in triple-base propellants have different physical properties, such as their water solubility. The solubility of nitroguanidine is 10.36 g per 100 g water at a temperature of 373.15 K, but the solubility of other ingredients in triple-base propellants is negligible. In this paper, the effects of hot water on triple-base propellants were investigated as a function of time. The combustion performance of these propellants after water immersions was also examined. Immersion in hot water led to the formation of micro-holes in the surface layer, and the depth value range of the immersion layer in the propellant was 50−150 µm after water immersion for different times up to 60 min. Closed-bomb tests indicated that the combustion time decreased as the propellant immersion time increased. Additionally, hot water immersion can also decrease the combustion ignition pressure of the propellants.


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