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Selective modifiers for composite material property enhancement

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United States Patent

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11,046,048
June 29, 2021
View the Complete Patent at the US Patent & Trademark Office
Tunable Fracture Toughness in Composite Laminate
A laminate comprising a first ply, a second ply, and a plurality of interfacial modifiers arranged between opposing faces of the first ply and the second ply. A chemical composition of an interfacial modifier of the plurality of interfacial modifiers can be selected based on a resulting bond strength between the interfacial modifier of the plurality of interfacial modifiers and at least one of the first ply or the second ply. The plurality of interfacial modifiers can be arranged in a pattern to selectively modify toughness of a portion of the laminate based on the bond strength of the interfacial modifier of the plurality of interfacial modifiers.
17/ 065,061
October 7, 2020
1/1
B32B 7/05 (20190101)B32B 27/30 (20060101)B32B 27/36 (20060101)
;428/198
STATEMENT OF GOVERNMENTAL INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The U.S. Government has certain rights in the invention.