276306 Effects of Interfacial Characteristics On Impact Sensitivity of PBX

Monday, October 29, 2012
Hall B (Convention Center )
Jung Seob Shim, High Energy, Agency for Defense Development, Daejeon, South Korea, Jung Soo Park, high energy, Agency for Defense Development, Deajeon, South Korea and Hyoun Soo Kim, high energy , Agency for Defense Development, Deajeon, South Korea

A Plastic Bonded Explosive (PBX's) is mainly composed of nitramine explosive and polymer binder.  A great number of serious applications of PBX require the good adhesion between nitramine crystals and the binder, which depends on the surface characteristics of a filler and binder.  In the pursuit of the better design to achieve the enhanced adhesion, profound knowledge of the surface and interfacial characteristics of explosive and binder should be exploited.  In this work, the influences of physicochemical properties between RDX and binders such as interfacial tension(γSL), latent heat(Qm), and density(ρ) on impact sensitivity of PBX were investigated.  The major contribution factor to impact sensitiveness of PBX was the interfacial tension, compact to other surface properties.

References

1. H. Hengjian, D. Haishan, Z. Ming, C. Kemei and Z. Yufen, "A Quasi-Theoretic Method for the Selection of Desensitizers in the Designs of Explosive Formulations", 2003 Int'l Autumn Seminar on Propellants, Explosive and Pyrotechnics, Vol. V. pp.54(2003)

2. O. Planinsek, R. Pisek, A Trojak, S. Srcic, "The utilization of surface free-energy parameters for the selection of a suitable binder in fluidized bed granulation", Int'l Journal of pharmaceutics, Vol.207, Issues 1-2, pp(77-87(2000)


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See more of this Session: Interfacial Phenomena (Area 1c) Poster Session
See more of this Group/Topical: Engineering Sciences and Fundamentals