Minimum signature propellant
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsMay L. Chan, Alan D. Turner
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Abstract
This invention relates to energetic compositions, which offer increased performance in conjunction with a total absence of halogen based oxidizers to eliminate exhaust products, such as hydrogen chloride. The oxidizers of choice are various combinations neat ammonium dinitramide, ammonium dinitramide prills and CL-20, because these oxidizers do not produce halogen containing exhaust products, such as the HCl gas of ammonium perchlorate. The exhaust these novel propellants consist mostly of CO2, H2O, N2, and small amounts of CO. These exhaust species are friendlier and much less hazardous to the environment than those emitted by conventional AP-based propellants. The plasticizers are selected from energetic plasticizers that do not contain halogens, but maintain other desirable properties.
Claims16
A minimum signature solid propellant formulation comprising:
- about 6.0 to about 9.0 weight % of at least one polymeric binder;
- about 21 to about 28 weight % of at least one energetic plasticizer;
- about 17 to about 25 weight % of neat ammonium dinitramide having a particle size of about 20 μm to about 60 μm as a neat ADN oxidizer;
- and
- about 35 to about 45 weight % of ammonium dinitramide prills having a particle size of about 100 μm to about 200 μm as an ADN prills oxidizer.
A minimum signature solid propellant formulation comprising:
- about 6.0 to about 9.2 weight % of at least one polymeric binder;
- about 21 to about 28 weight % of at least one energetic plasticizer;
- about 17 to about 25 weight % of neat ammonium dinitramide having a particle size of about 20 Elm to about 60 Elm as a neat ADN oxidizer;
- and
- about 35 to about 45 weight % of ammonium dinitramide prills having a particle size of about 100 μm to about 200 μm as an ADN prills oxidizer.
Dependencies are inferred from the claim text.