Burning rate enhancement of solid propellants by means of metal/oxidant agglomerates

Patent · Tue Apr 07 00:00:00 EDT 1987

OSTI ID:6538746

Sayles, D C

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
• Application Number: TRN: 87-019851
• OSTI ID: 6538746
• Resource Relation: Patent File Date: Filed date 17 Apr 1979
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
PROPELLANTS
ADDITIVES
CHEMICAL PREPARATION
COMBUSTION PROPERTIES
AGGLOMERATION
ALUMINIUM
AMMONIUM PERCHLORATES
BORON
BUTADIENE
CROSS-LINKING
CURING
HYDROCARBONS
ISOCYANATES
OXIDIZERS
POLYMERS
QUANTITY RATIO
SOLIDS
SOLVENTS
TITANIUM
AMMONIUM COMPOUNDS
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
DIENES
ELEMENTS
HALOGEN COMPOUNDS
METALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERCHLORATES
POLYENES
POLYMERIZATION
SEMIMETALS
SYNTHESIS
TRANSITION ELEMENTS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry
400201 - Chemical & Physicochemical Properties