Conductive composites
AssigneeThe Boeing Company
InventorsAshley M. Dustin, Andrew P. Nowak, Xin N. Guan, Adam F. Gross, Richard E. Sharp
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Abstract
Disclosed are conductive composites comprising a polymer, a conductor selected from metals and metal alloys, and a thickening agent.
Claims20
A flexible conductive composite comprising:
- (a) a cured polymer matrix comprising a thermoset elastomer comprising urea linkages or urethane and urea linkages;
- and
- (b) a mixture comprising
- a conductor selected from metals and metal alloys having a melting temperature below about 60° C.;
- and
- from about 5-50% by volume of a thickening agent based on the volume of the mixture,
- wherein the mixture is continuously entrapped within the polymer as a network of the mixture uniformly distributed within the polymer matrix.
A conductive composite comprising:
- a cured elastomeric polymer matrix comprising a thermoset elastomer comprising urea linkages or urethane and urea linkages;
- and
- a mixture comprising a conductor selected from metals and metal alloys having a melting temperature below 60° C.;
- and
- from about 5-50% by volume of a thickening agent based on the volume of the mixture,
- wherein the conductive composite exhibits a minimum sheet resistance of less than 100 Ohm/sq, an elongation greater than or equal to 50%, and a tensile strength greater than or equal to 3 MPa, and
- the mixture is continuously entrapped within the elastomeric polymer matrix as a network.
A conductive composite comprising a cured polymer matrix and an electrically conductive network stably and homogeneously, continuously, or both homogenously and continuously entrapped within the polymer, the network comprising a mixture comprising a conductor having a melting point below about 60° C. and from about 5-50% by volume of a compound or metal that does not alloy with the conductor based on the volume of the mixture, wherein the cured polymer matrix comprises a thermoset elastomer comprising urea linkages or urethane and urea linkages.
Dependencies are inferred from the claim text.