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PBXes are normally used for explosive materials which are not easily meltable to cast or which are otherwise hard to form.

Polymer-bonded explosives have several potential advantages:
  • If the polymer matrix is an Elastomer (rubbery material), it tends to absorb shocks, making the PBX very insensitive to accidental detonation.

  • Hard polymers can produce PBX that is very rigid and maintains a precise engineering shape even under severe stress.

  • PBX powders can be pressed into a particular shape at room temperature, when casting normally requires hazardous melting of the explosive. High pressure pressing can achieve density for the material very close to the theoretical crystal density of the base explosive material.

  • Many PBXes are safe to machine - to turn solid blocks into complex 3-dimensional shapes. This technique is used at nuclear weapons fabrication plants.






























Some example PBXs
NameExplosive IngredientsBinder IngredientsUsage
X-024292% HMX 8% Polymer
EDC-3791% HMX / NC 9% Polyurethane rubber
PBXN-595% HMX 5% fluoroelastomerNaval shells
PBXN-106 RDX Polyurethane rubberNaval shells
LX-14-0 HMX 95.5%Estane & 5702-Fl 4.5%
LX-10-0 HMX 95% Viton -A 5%
LX-10-1 HMX 94.5% Viton -A 5.5%
PBX-9501 HMX 95%Estane 2.5%; BDNPA-F 2.5%
PBX-9404 HMX 94% NC 3%; CEF 3% Nuclear Weapons
LX-09-1 HMX 93.3%BDNPA 4.4%; FEFO 2.3%
LX-09-0 HMX 93%BDNPA 4.6%; FEFO 2.4%
LX-07-2 HMX 90% Viton -A 10%
PBX-9011 HMX 90%Estane and 5703-Fl 10%
LX-04-1 HMX 85% Viton -A 15%
LX-11-0 HMX 80% Viton -A 20%
LX-15 HNIS 95%Kel-F 800 5%
LX-16 PETN 96%FPC461 6%
PBX-9604 RDX 96%Kel-F 800 4%
PBX-9407 RDX 94%FPC461 6%
PBX-9205 RDX 92%Polystyrene 6%; DOP 2%
PBX-9007 RDX 90%Polystyrene 9.1%; DOP 0.5%; rosin 0.4%
PBX-9010 RDX 90%Kel-F 3700 10%
PBX-9502 TATB 95%Kel-F 800 5%Nuclear Weapons
LX-17-0 TATB 92.5%Kel-F 800 7.5%
PBX-9503 TATB 80%; HMX 15%Kel-F 800 5%



REFERENCES

  • Cooper, Paul W., ''Explosives Engineering'', New York: Wiley-VCH, 1996. ISBN 0-471-18636-8

  • Norris, Robert S. Kristensen, Hans M., and Handler Joshua., "The B61 family of bombs" 2003