Paper

Effect of Ammonium Dinitramide (ADN) on the Characteristics of Hydroxyl Terminated Polybutadiene (HTPB) Based Composite Solid Propellant


Authors:
Wei-qiang Pang; Xue-zhong Fan; Wei Zhang; Hui-xiang Xu; Ning Yan; Wu-xi Xie; Fang-li Liu; Shu-xin Wu
Abstract
Ammonium dinitramide (ADN), NH4N(NO2)2, can be used in the smokeless composite propellants by replacing AP. It is being considered as one of the most potential energetic oxidizers for propellants. The physical chemistry characteristics of ADN were investigated. The energetic performances, burning characteristics at various pressure ranges, mechanical sensitivity and SEM surfaces observation of HTPB-based propellant with ADN were determined and detected in details. The calculated results showed that the specific impulse and the adiabatic flame temperature are increasing with an increase in the content of ADN. The burning rate and pressure exponent of propellant with a change of pat content of ADN can be boosted higher than those of the AP formulations. The surface structures of composite propellants were little affected by the content of ADN.
Keywords
Composite Propellants; ADN; Thermal Decomposition; Energetic Property; Mechanical Sensitivity; Combustion Characteristics
StartPage
53
EndPage
60
Doi
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