Rdx Migration, High-energy Too Root Propellant

The high-energy TEGN gun propellant composed of NC, NG,TENG and RDX is one of the new pattern high-energy gun propellant which is in process of active exploitation now. The prescription of TEGN gun propellant filled with high-energy material-RDX has also been experimented and researched for using.In some condition, low molecular solid substance RDX will migrate from the inside to the surface of the gunpowder. Consequently the migration will affect the using life of gun propellant. At the present time, the migration of TEGN gun propellant joined by RDX has not been studied systemically home or abroad, especially the research on the migration of RDX has not been reported. In this paper migration theory and techniques related to the high-energy TEGN gun propellant are presented, and some methods determining the migration of RDX are analyzed and compared. As a result, chemical and thermal analyses are employed associatively to test the content of RDX in different position of TEGN gun propellant stored different period. The antimigration capability of TEGN gun propellant making use of two different granularity of RDX is also been studied. In this work, Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) are used successfully to research the migration for the first time. Experimental results show the antimigration capability of RDX is nice, and there isn't obvious migration in the long term of storing. By comparison to chemical analysis, TG and DSC can be used in detection of the migration of RDX when combined with other ways.