Composite structure
AssigneeSiemens Gamesa Renewable Energy A/S
InventorsPeter Andreas Lund Jacobsen, Peter Kybelund
Life of this patent
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Abstract
A composite structure having a number of thermoset resin containing elements and a number of thermoplastic elements and at least one interface between the thermoset resin containing elements and the thermoplastic elements is provided. The thermoset resin containing elements and the thermoplastic elements have functional groups at the interface which bond to each other when the composite structure is cured and the functional groups are independently selected from amines, carboxylic acids, acid anhydrides, oxiranes, and derivatives thereof in their non-bonded condition. Additionally, a blade having such a composite structure is provided.
Claims14
A composite structure comprising
- a number of thermoset resin containing elements and a number of thermoplastic elements and at least one interface between the thermoset resin containing elements and the thermoplastic elements,
- wherein the thermoset resin containing elements and the thermoplastic elements comprise functional groups at the interface which bond to each other when the composite structure is cured and the functional groups are independently selected from amines, carboxylic acids, acid anhydrides, oxiranes, and derivatives thereof in their non-bonded condition;
- wherein the thermoset resin containing element comprises a two or three component system having at least one resin component and at least one hardener;
- and wherein the thermoplastic element comprises functional groups reactive with the resin component or with the hardener.
A blade comprising a composite structure, said composite structure comprising:
- a number of thermoset resin containing elements and a number of thermoplastic elements and at least one interface between the thermoset resin containing elements and the thermoplastic elements,
- wherein the thermoset resin containing elements and the thermoplastic elements comprise functional groups at the interface which bond to each other when the composite structure is cured and the functional groups are independently selected from amines, carboxylic acids, acid anhydrides, oxiranes, and derivatives thereof in their non-bonded condition;
- wherein the thermoplastic element is part of an aerodynamic improving element.
A composite structure comprising
- a number of thermoset resin containing elements and a number of thermoplastic elements and at least one interface between the thermoset resin containing elements and the thermoplastic elements,
- wherein the thermoset resin containing elements and the thermoplastic elements comprise functional groups at the interface which bond to each other when the composite structure is cured and the functional groups are independently selected from amines, carboxylic acids, acid anhydrides, oxiranes, and derivatives thereof in their non-bonded condition;
- wherein the thermoset resin containing element comprises a two or three component system having at least one resin component and at least one hardener;
- wherein the thermoplastic element comprises functional groups reactive with the resin component and with the hardener.
A composite structure comprising
- a number of thermoset resin containing elements and a number of thermoplastic elements and at least one interface between the thermoset resin containing elements and the thermoplastic elements,
- wherein the thermoset resin containing elements and the thermoplastic elements both comprise functional groups at the interface which bond to each other when the composite structure is cured and the functional groups are independently selected from amines, carboxylic acids, acid anhydrides, oxiranes, and derivatives thereof in their non-bonded condition;
- wherein the thermoset resin containing element comprises a two or three component system having an epoxy resin component and at least one hardener;
- wherein the functional groups of the thermoplastic elements that bond to the at least one hardener are selected from oxiranes, carboxylic acids and derivatives thereof.
A composite structure comprising
- a number of thermoset resin containing elements and a number of thermoplastic elements and at least one interface between the thermoset resin containing elements and the thermoplastic elements,
- wherein the thermoset resin containing elements and the thermoplastic elements both comprise functional groups at the interface which bond to each other when the composite structure is cured and the functional groups are independently selected from amines, carboxylic acids, acid anhydrides, oxiranes, and derivatives thereof in their non-bonded condition;
- wherein the functional groups of the thermoplastic elements at the interface comprise amines.
Dependencies are inferred from the claim text.