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US 12,611,844 B2Granted
Thermoplastic joining films and methods for joining thermoplastic and thermoset composite materials
AssigneeThe Boeing Company
InventorsYing Shi, Marcos Pantoja, Alexander M. Rubin
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Abstract
A thermoplastic composition includes a thermoplastic polymer and a polyaryletherketone polymer in admixture with the thermoplastic polymer.
Claims22
A composite structure comprising:
- a thermoset composite component;
- a thermoplastic composite component formed of a single thermoplastic material of polyetheretherketon (PEEK) or polyetherketoneketone (PEKK);
- and
- a thermoplastic joining film forming a structural composite joint between the thermoset composite component and the thermoplastic composite component, the thermoplastic joining film comprising a thermoplastic polymer and a polyaryletherketone polymer in admixture with the thermoplastic polymer.
1 more element
A method for manufacturing a composite structure comprising:
- positioning a thermoplastic composite component with a surface formed of thermoplastic joining film relative to a thermoset composite component such that the thermoplastic joining film is between a thermoplastic substrate of the thermoplastic composite component and the thermoset composite component, wherein the thermoplastic composite component is formed of a single thermoplastic material of polyetheretherketon (PEEK) or polyetherketoneketone (PEKK) and the thermoplastic joining film comprises a thermoplastic polymer and a polyaryletherketone polymer in admixture with the thermoplastic polymer;
- and
- applying heat lower than a melting temperature of the thermoplastic joining film to the thermoplastic joining film to form a composite joint between the thermoplastic composite component and the thermoset composite component.
Dependencies are inferred from the claim text.