Burning rate enhancement of solid propellants by means of metal/oxidant agglomerates
Patent
·
OSTI ID:6538746
A method is described for preparing a solid propellant with increased burning rate achieved by incorporating from about 1 to about 5 weight percent of metal/oxidant agglomerates into an uncured solid propellant formulation and curing the solid propellant formulation having the agglomerates intimately dispersed therein to form a solid propellant grain. The method comprises: (i) providing metal/oxidant agglomerate formulation ingredients comprised of about 23 weight percent of ammonium perchlorate of about 1 micrometer weight-median-diameter; and (ii) introducing an excess amount of a fluorinated and/or chlorinated hydrocarbon solvent into a container and then introducing the metal/oxidant agglomerate formulation ingredients into the solvent in which the metal/oxidant agglomerate formulation ingredients are insoluble. The container is provided with stirring means to form a slurry and the container provided with pressure reducing means to permit operation under reduced pressure; and (iii) mixing the metal/oxidant agglomerate formulation ingredients to form a slurry and continue the mixing for about 15 minutes at ambient temperature to form agglomerates as the metal/oxidant agglomerate formulation ingredients are slurred in the fluorinated and/or chlorinated hydrocarbon solvent.
- Assignee:
- The Secretary of the Army, Washington, DC
- Patent Number(s):
- US 4655858
- OSTI ID:
- 6538746
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ADDITIVES
AGGLOMERATION
ALUMINIUM
AMMONIUM COMPOUNDS
AMMONIUM PERCHLORATES
BORON
BUTADIENE
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COMBUSTION PROPERTIES
CROSS-LINKING
CURING
DIENES
ELEMENTS
HALOGEN COMPOUNDS
HYDROCARBONS
ISOCYANATES
METALS
ORGANIC COMPOUNDS
OXIDIZERS
OXYGEN COMPOUNDS
PERCHLORATES
POLYENES
POLYMERIZATION
POLYMERS
PROPELLANTS
QUANTITY RATIO
SEMIMETALS
SOLIDS
SOLVENTS
SYNTHESIS
TITANIUM
TRANSITION ELEMENTS
400201 -- Chemical & Physicochemical Properties
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ADDITIVES
AGGLOMERATION
ALUMINIUM
AMMONIUM COMPOUNDS
AMMONIUM PERCHLORATES
BORON
BUTADIENE
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COMBUSTION PROPERTIES
CROSS-LINKING
CURING
DIENES
ELEMENTS
HALOGEN COMPOUNDS
HYDROCARBONS
ISOCYANATES
METALS
ORGANIC COMPOUNDS
OXIDIZERS
OXYGEN COMPOUNDS
PERCHLORATES
POLYENES
POLYMERIZATION
POLYMERS
PROPELLANTS
QUANTITY RATIO
SEMIMETALS
SOLIDS
SOLVENTS
SYNTHESIS
TITANIUM
TRANSITION ELEMENTS