Carbon-based composites derived from phthalonitrile resins
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsSatya B. Sastri, James P. Armistead, Teddy M. Keller
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Abstract
A carbon-based composite is made by the steps of (1) impregnating a fibrous material with a phthalonitrile thermoset polymer precursor, (2) curing the product of step (1) to form a fiber-reinforced thermoset polymer and (3) pyrolyzing the product of step (2) to form the carbon-based composite. The carbon-based composite may be made with only one cycle of the steps (1), (2), and (3).
Claims19
A method of making a carbon-based composite comprising the steps of
- (1) impregnating a fibrous material with a phthalonitrile thermoset polymer precursor,
- (2) curing the product of step (1) to form a fiber-reinforced thermoset polymer and
- (3) pyrolyzing the product of step (2) to form the carbon-based composite.
A carbon-based composite made by a process comprising the steps of
- (1) impregnating a fibrous material with a phthalonitrile thermoset polymer precursor,
- (2) curing the product of step (1) to form a fiber-reinforced thermoset polymer and
- (3) pyrolyzing product of step (2) to form the carbon-based composite.
A method of making a carbon/carbon composite comprising the steps of
- (1) impregnating a carbon fiber material with a phthalonitrile thermoset polymer precursor,
- (2) curing the product of step (1) to form a fiber-reinforced thermoset polymer and
- (3) pyrolyzing the product of step (2) to form the carbon/carbon composite.
A carbon/carbon composite made by a process comprising the steps of
- (1) impregnating a carbon fiber material with a phthalonitrile thermoset polymer precursor,
- (2) curing the product of step (1) to form a fiber-reinforced thermoset polymer and
- (3) pyrolyzing product of step (2) to form the carbon/carbon composite.
Dependencies are inferred from the claim text.