EP2382086A1 - Élément de construction composite avec couche de finition - Google Patents

Élément de construction composite avec couche de finition

Info

Publication number
EP2382086A1
EP2382086A1 EP10701464A EP10701464A EP2382086A1 EP 2382086 A1 EP2382086 A1 EP 2382086A1 EP 10701464 A EP10701464 A EP 10701464A EP 10701464 A EP10701464 A EP 10701464A EP 2382086 A1 EP2382086 A1 EP 2382086A1
Authority
EP
European Patent Office
Prior art keywords
layer
fiber
composite component
cover layer
fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10701464A
Other languages
German (de)
English (en)
Inventor
Willy Dauner
Frank Hoecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler AG filed Critical Daimler AG
Publication of EP2382086A1 publication Critical patent/EP2382086A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/088—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of non-plastics material or non-specified material, e.g. supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/06—Making particle boards or fibreboards, with preformed covering layers, the particles or fibres being compressed with the layers to a board in one single pressing operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/12—Moulding of mats from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/78—Moulding material on one side only of the preformed part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00—Use of elements other than metals as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
    • B29K2311/10—Natural fibres, e.g. wool or cotton
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0056—Biocompatible, e.g. biopolymers or bioelastomers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • B32B2307/40—Properties of the layers or laminate having particular optical properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/40—Properties of the layers or laminate having particular optical properties
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    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24851—Intermediate layer is discontinuous or differential
    • Y10T428/24868—Translucent outer layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer

Definitions

  • the invention relates to composite components of at least 3 different material layers according to the preamble of the claim, a surface component in motor vehicles, in particular as doors, flaps or roofs, made of sheet metal and / or fiber reinforced plastic with a cover layer according to the preamble of claim 14 and an advantageous method for production this composite component or surface component according to the preamble of claim 18.
  • Composite components made of different material layers are used as lightweight composite materials in various technical fields of application, such as aerospace, shipbuilding or motor vehicle construction.
  • the composite components are often used in body construction as surface components.
  • CFRP carbon fiber reinforced plastics
  • Such lightweight composite components are preferably used as thin surface components of motor vehicles, such as automobile doors, roof parts, trunk lids or hoods.
  • the CFRP material layer lies on the bottom or inside, ie away from the view. If the CFRP material layer is on the visible side, in particular on the outside or on top, it is usually covered by a cover layer, cover film or topcoat, so that it does not appear optically. However, it may also be desirable for the structure of the CFRP material to appear optically for design purposes. Because fiber reinforced materials are known as high performance materials, the visual appearance of the CFRP material can support a high quality appearance of a composite component. In motor vehicles, or automobiles, the same high demands are placed on the surface quality of the CFRP material as on the other automotive surfaces, in particular paint layers. These high quality standards are known as Class A visual surface.
  • a three-layer stiffening material which is composed of two polymer layers and a stiffening layer.
  • the polymer layer facing the substrate to be stiffened may be a foam layer, while the outer layer arranged on the compliant foam layer is a layer of rigid foam.
  • the third layer may be a glass fiber layer for effecting the stiffening.
  • EP 1 556 213 B1 discloses a multilayer laminate for stiffening flat substrates containing at least two thermally curable binder layers and two layers of fibrous textile fabrics.
  • a binder layer facing the substrate to be stiffened a binder layer facing away from the substrate to be stiffened, a layer of a fibrous textile fabric arranged between these binder layers, and a layer on the surface of the fibrous web second layer of a fibrous fabric used arranged to be stiffened substrate facing away binder layer.
  • the binder layer facing the substrate to be stiffened is adhesively bonded in the cured state to the substrate to be stiffened and has an equal or lower modulus of elasticity than the second binder layer (14).
  • the object of the invention is to provide a cost-effective lightweight composite material with high-quality mechanical appearance, in particular a surface component for motor vehicles, such as doors, flaps or roofs, made of sheet metal and / or fiber-reinforced plastic and to show a suitable cost-effective production process for this purpose.
  • the output is achieved by a composite component of at least 3 different material layers, with a layer structure of a) carrier layer or carrier structure made of metal or fiber-reinforced synthetic resin b) adhesive layer of elastomer c) cover layer of carbon fiber or carbon mixed fiber reinforced plastic, wherein the plastic and the arrangement of the carbon fibers or
  • Carbon mixed fibers are selected so that the carbon fibers or carbon mixed fibers are optically visible on the surface of the cover layer, with the features of claim 1.
  • a further solution of the problem is given by a surface component for motor vehicles, made of sheet metal and / or fiber-reinforced plastic, which carries a cover layer of carbon fiber reinforced plastic, which is connected via an elastomeric intermediate layer, wherein the carbon fibers of the cover layer visually recognizable emerge with the features of the claim 14th
  • a composite component of at least 3 different material layers is provided in the first embodiment.
  • the following layer structure is chosen: a) carrier layer or carrier structure of metal or fiber-reinforced synthetic resin b) adhesion promoter layer of elastomer c) cover layer of carbon fiber or carbon mixed fiber reinforced plastic.
  • the plastic and the fiber arrangement of the carbon fiber or carbon composite fiber reinforcement are selected so that the carbon fibers or carbon composite fibers on the surface of the cover layer are optically are visible.
  • the plastic that it is transparent or transparent and is not present in unusually high proportion in the cover layer.
  • the optically visible arrangement of the carbon blending fibers on the surface does not mean that the fibers emerge from the surface.
  • the cover layer has a smooth surface, which is closed by an at least thin plastic or resin layer.
  • the quality of the cover layer is in a Class A visible surface.
  • cover layer of the intermediate layer of elastomer is of particular importance.
  • the composite material has the function of a bonding agent layer between the different materials.
  • the composite material bonds the usually incompatible materials of the substrate and the cover layer and compensates for thermal stresses between these different materials. This is particularly important if the cover layer or the substrate are formed from resins which have a reaction shrinkage during production.
  • the cover layer is hard, scratch-resistant and weather-resistant.
  • the cover layer is hard, scratch-resistant and weather-resistant.
  • suitable known resin compositions for this purpose, recourse can be had to suitable known resin compositions.
  • This embodiment is particularly advantageous for applications as doors, flaps or roofs in motor vehicles.
  • cover layer is used, which can be used on the surface untreated.
  • a coating for example a clearcoat.
  • the carrier layer or carrier structure is constructed of metal.
  • Surface components for motor vehicles may typically be to act the common automotive or automotive sheets.
  • the metal of the carrier layer or carrier structure is preferably constructed of steel and / or aluminum alloy.
  • Metal composite structures are also included.
  • the metal or sheet metal is a significant proportion of the load-bearing function. The thickness of the automotive sheet, however, can be reduced somewhat over the comparable applications due to the reinforcing function of the cover sheet.
  • the carrier layer or carrier structure (hereinafter also referred to as substrate) made of fiber-reinforced plastic, in particular of carbon, aramid and / or glass fiber reinforced plastic constructed.
  • substrate made of fiber-reinforced plastic, in particular of carbon, aramid and / or glass fiber reinforced plastic constructed.
  • the presence of the adhesion promoter layer has a clearly positive influence on the quality and the resistance of the surface quality of the cover layer.
  • the carrier layer or carrier structure of fiber-reinforced synthetic resin according to the SMC (SheetMouldingCompound), BMC (BulkMoldingCompound) or RTM (ResinTransferMoulding) method is formed.
  • the decorative function of the cover layer is particularly in the foreground.
  • the substrate materials themselves are already comparatively strong and require less of an additional mechanical reinforcement by the cover layer, and on the other hand, the surfaces of the materials produced by the above method are qualitatively not suitable for the field of vision of motor vehicle bodies. They usually do not meet the requirements for Class A surfaces without reworking.
  • the adhesion promoter layer is formed from an elastomer layer. This does not have to be made of the same material.
  • this layer can also carry an adhesive layer on one or both sides.
  • the adhesive layer changes the layer properties of the elastomer layer in such a way that an optimal connection to the respective material surface of metal, plastic or carbon (mixed) fiber-reinforced resin takes place.
  • the elastomer may also be itself formed by an adhesive having elastomeric properties after curing. Typically, the elastomer is formed from rubber, silicone rubber or rubber.
  • Suitable rubbers include but are not limited to polybutadiene rubber (BR), styrene-butadiene rubber (SBR), nitrile rubber (NBR), oligomeric siloxanes or cyclic dimethylpolysiloxanes (SI) and acrylate rubber (ACM).
  • BR polybutadiene rubber
  • SBR styrene-butadiene rubber
  • NBR nitrile rubber
  • SI oligomeric siloxanes or cyclic dimethylpolysiloxanes
  • ACM acrylate rubber
  • TPE thermoplastic elastomers
  • Suitable TPEs include copolyesters, polyether block amides, or styrene block colopolymers, among others.
  • the thickness of the elastomer layer is typically of the same order of magnitude as that of the cover layer. However, the elastomer layer is preferably much thinner than the cover layer.
  • the cover layer is formed according to the invention by carbon fiber or carbon mixed fiber reinforced plastic.
  • the fibers are present in the usual processing form as a fiber bundle or yarn.
  • the fiber reinforcement thus comprises a mixture of carbon fibers and further reinforcing fibers, preferably aramid fibers, glass fibers, metal fibers, polymer fibers or natural fibers, in particular hemp fibers, flax fibers cellulose fibers, or cotton fibers, all fiber types being arranged as individual fiber strands next to each other or mixed in a fiber strand.
  • Particularly preferred mixtures consist of carbon fibers and aramid fibers.
  • the fiber reinforcement or the geometric arrangement of the fibers is formed by woven knitted or knitted fabric.
  • a regular arrangement of the fibers In particular, this should be formed on the top surface optically recognizable patterns or regularities.
  • the fibers are arranged in random position.
  • the fiber content and the process management turn to put emphasis on the visual impression of the surface of the composite component.
  • fiber filaments can lead to an extraordinary appearance.
  • the fiber content in the cover layer may have the usual proportion for CFK.
  • thermosetting plastics are used, as they are known from the technology of CFRP processing.
  • thermoplastics such as polycarbonate and PMMA, and elastomers are suitable.
  • the thickness of the cover layer can be reduced to such an extent that the load-bearing or reinforcing function of the cover layer is only of subordinate importance. As a rule, even a few fiber bundles or yarn layers, for example 2, preferably 3 to 10, are sufficient to produce the optical effect.
  • the thickness of the substrate is then a multiple above that of the cover layer.
  • the cover layer may be advantageous to provide or seal the cover layer with a transparent or translucent lacquer layer. This is particularly advantageous if the composite component is used as a surface component in motor vehicles application.
  • the composite component can also be arranged in the interior of a vehicle body, so that the cover layer can be seen from the interior of the vehicle.
  • the composite component can be used here, for example, as A, B or C-pillar of a passenger car.
  • the structure of the composite component is not limited to 3 layers.
  • a layered material composite can again be used as the substrate itself.
  • the individual layers are represented multiple times in the composite component, wherein an elastomer layer is arranged at least between each carrier layer and cover layer.
  • a typical embodiment of this arrangement is a carrier layer of two metal sheets connected via an elastomer layer, followed by elastomer and cover layer.
  • Another typical embodiment of this arrangement is a carrier layer of two SMC plates connected via an elastomer layer, followed by elastomer and cover layer.
  • Another typical embodiment of this arrangement is a carrier layer of sheet metal, elastomer layer and cover layer followed by elastomer and cover layer.
  • a further solution to the problem of the invention is found in a surface component in motor vehicles, in particular doors, flaps or roofs, made of sheet metal and / or fiber-reinforced plastic, which carries a cover layer of carbon fiber reinforced plastic (CFRP), which is connected via an elastomeric intermediate layer, wherein the Carbon fibers of the top layer visually recognizable emerge.
  • CFRP carbon fiber reinforced plastic
  • the cover layer is preferably coated with a transparent or translucent lacquer.
  • the cover layer is coated with the bodywork topcoat of the motor vehicle.
  • the surface component is designed so that the cover layer contributes only to the minor part to the load-bearing function of the entire surface component.
  • the thickness of the cover layer is preferably selected to be smaller than the thickness of the substrate and is less than 50% of the total surface component.
  • a further aspect of the invention is a particularly suitable production method of the executed composite component comprising at least 3 different material layers or the executed surface component in motor vehicles, in particular doors, flaps or roofs, of sheet metal and / or fiber-reinforced plastic.
  • the individual layers are joined in a joint process to the composite or surface component. It is envisaged that the joining of all individual layers of substrate, elastomer layer and cover layer takes place in a common pressing operation.
  • the carrier layer or the substrate, the elastomeric material and plastically deformable CFRP material are placed in a mold.
  • CFRP material is the still plastically deformable raw material of carbon (mixed fiber) reinforcement and plastic to understand. Resins which are cold or thermally curable in the mold are used in particular as plastic. Typical CFRP material are impregnated with reaction resin woven, knitted or knitted or prepregs.
  • the elastomer material may be already crosslinked elastomer, in particular with adhesive coating. This can be processed almost like thin films, or bring in the press.
  • the elastomer may also be plastically deformable uncrosslinked or slightly crosslinked elastomeric material.
  • the crosslinking is carried out as far as necessary during pressing cold or hot.
  • the advantage of the method is that the end product can be produced in a single process step and that even complex geometries can be reproduced without problems.
  • the elastomer, which is still soft when pressed off, and plastic CFRP material can ideally match the topography of the substrate and compensate for unwanted irregularities or roughnesses.
  • the reaction shrinkage of the CFRP material during the pressing process is essentially absorbed by the elastomer layer.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un élément de construction composite composé d'au moins 3 couches de matériau différentes, ayant la structure suivante : a) couche porteuse ou structure porteuse en métal et/ou en matière plastique renforcée par des fibres, b) couche d'agent adhésif en élastomère et c) couche de finition en matière plastique renforcée par des fibres de carbone ou renforcée par des fibres de carbone et d'autres fibres, la matière plastique et la disposition des fibres de carbone ou des fibres de carbone et autres fibres étant choisies afin que les fibres de carbone ou les fibres de carbone et autres fibres soient optiquement visibles à la surface de la couche de finition.
EP10701464A 2009-01-26 2010-01-19 Élément de construction composite avec couche de finition Withdrawn EP2382086A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009006130A DE102009006130B4 (de) 2009-01-26 2009-01-26 Verbundbauteil mit Deckschicht
PCT/EP2010/000284 WO2010083980A1 (fr) 2009-01-26 2010-01-19 Élément de construction composite avec couche de finition

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EP2382086A1 true EP2382086A1 (fr) 2011-11-02

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US (1) US20110274897A1 (fr)
EP (1) EP2382086A1 (fr)
JP (1) JP2012515667A (fr)
DE (1) DE102009006130B4 (fr)
WO (1) WO2010083980A1 (fr)

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DE102009006130A1 (de) 2010-07-29
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US20110274897A1 (en) 2011-11-10
JP2012515667A (ja) 2012-07-12

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