Classifications

• • 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
  • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
  • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
  • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
  • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
  • B32B37/203—One or more of the layers being plastic
• • 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
  • B32B15/08—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 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
  • B32B38/00—Ancillary operations in connection with laminating processes
  • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
• • 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
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D1/00—Processes for applying liquids or other fluent materials
  • B05D1/62—Plasma-deposition of organic layers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D2201/00—Polymeric substrate or laminate
  • B05D2201/02—Polymeric substrate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D2202/00—Metallic substrate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D2252/00—Sheets
  • B05D2252/02—Sheets of indefinite length
• • 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
  • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
  • B29C59/14—Surface shaping of articles, e.g. embossing; Apparatus therefor by plasma treatment
• • 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
  • B32B2310/00—Treatment by energy or chemical effects
  • B32B2310/14—Corona, ionisation, electrical discharge, plasma treatment
• • 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
  • B32B2311/00—Metals, their alloys or their compounds

Definitions

• the invention relates to a method for producing a layered composite material comprising at least one metallic substrate and at least one
• Plastic layer and a device for producing a composite layer material comprising at least one metallic substrate and at least one
• the invention relates to a layered composite material comprising at least one metallic substrate, at least one plastic layer and at least one adhesion promoter layer arranged therebetween.
• a layered composite material comprising at least one metallic substrate, at least one plastic layer and at least one adhesion promoter layer arranged therebetween.
• sandwich sheets which between two metallic thin
• Cover layers have a thermoplastic resin layer is in the
• the composite laminates can be sound-absorbing and provide high rigidity.
• an adhesion promoter layer may be provided between the metallic substrate and the plastic layer.
• the primer layer is prepared using, for example, wet-chemical methods such as roll coating, spraying or
• the present invention has the object of specifying a method, a device and a layered composite material, wherein in a simple and process-reliable manner tailored to the particular application adaptation of properties of the layered composite material can be achieved.
• the object is according to a first teaching of the invention in a
• Plasma coating by a plasma coating system wherein the
• the plasma coating system during the plasma coating is driven such that at least
• Metallic substrate and / or the plastic layer by means of plasma coating is first achieved that very high adhesive properties between the individual layers of the composite material can be achieved.
• Adhesive properties could hitherto not be achieved with conventional primer layers, for example by wet-chemical processes, such as roll coating, spraying or dip coating.
• the properties of the adhesion promoter layer for example the thickness of the adhesion promoter layer, the density of the adhesion promoter layer, the
• composition of the primer layer, the surface structure of the surface structure of the surface structure of the surface structure of the primer layer Composition of the primer layer, the surface structure of the surface structure of the primer layer
• Adhesive layer etc.) along the surface of the metallic substrate and / or the plastic layer can be adjusted specifically. As a result, the resulting adhesive strength can be set locally accurate and resource-efficient.
• the setting of the targeted profile of the adhesion promoter layer can be based, for example, on specifications for certain properties of the adhesion promoter layer. It is also conceivable that specifications are made for the adhesion, on the basis of which the control of the plasma coating plant takes place.
• the coating along the surface can be achieved for example by a relative movement of the metallic substrate and / or the plastic layer and the plasma coating system.
• the layered composite material may also have more than one metallic substrate and / or more than one plastic layer.
• the metallic substrate is to be understood as at least one metallic substrate.
• the layer composite material is, for example, a sandwich sheet, which has two metallic cover layers as metallic substrates and an interposed therebetween, for example
• thermoplastic resin layer having thermoplastic resin layer.
• the plasma coating plant is to be understood as at least one plasma coating plant.
• the metallic substrate is for example a circuit board or band-shaped, for example a metal band.
• a tape may be provided by a coil from which it is unwound.
• the coating of the strip takes place in-line with the step of bonding the individual layers, for example in a laminating plant.
• the metallic substrate is, for example, an uncoated or coated substrate.
• the metallic substrate is made of steel, in particular
• Magnesium alloy zinc, copper, titanium, or combinations thereof.
• Coated metallic substrate may be zinc-coated, zinc-magnesium coated, chromium-coated or aluminum-based.
• the metallic substrate is electrolytically galvanized, electrolytically chromium plated or hot dip coated on a zinc or aluminum based base.
• the plastic layer is for example a polymer, preferably a thermoplastic polymer.
• the specific profile of the adhesion promoter layer along the surface of the metallic substrate and / or the plastic layer is a profile that is uniformly or specifically varying along the surface.
• Belt speed can be achieved so that resources, such as precursor material, are used optimally.
• a profile of the adhesion promoter layer varying in a targeted manner along the surface is provided, intentionally inhomogeneous adhesive strengths can be set precisely.
• areas of the layered composite material which are (later) subjected to increased reshaping can be provided with increased adhesive strength in order to avoid detachment of the individual layers.
• areas of a layer composite material used as a body element, which are to delaminate selectively in the event of a crash can be selectively provided with a reduced adhesive strength.
• the plasma coating plant comprises a plurality of plasma modules and the driving of the plasma coating plant comprises an at least partially separate driving of the plasma modules.
• the plurality of plasma modules along the surface of the metallic substrate and / or the plastic layer adjacent to each other in particular arranged like a matrix.
• Plasma coating system can be achieved.
• two or more plasma modules may be located adjacent.
• two or more plasma modules may be juxtaposed in a first direction and / or two or more plasma modules may be juxtaposed in a second direction (eg, transverse to the first direction).
• the plasma modules are arranged in matrix form in a 2 ⁇ 1 matrix, 1 ⁇ 2 matrix, 2 ⁇ 2 matrix, etc. Is the metallic substrate and / or the plastic layer
• the plasma modules can be seen in the longitudinal direction, for example, arranged one behind the other and / or next to each other.
• the plasma coating equipment or a portion thereof, such as a plasma module may be moved during coating. Basically, this is
• the plasma coating comprises one or more of the steps:
• the plasma coating is carried out under atmospheric pressure. As a result, the plasma coating can be realized comparatively easily, since no
• Vacuum chamber or pressure chamber must be provided.
• the plasma may be generated between a first electrode and a second electrode.
• the metallic substrate can advantageously also represent one of the electrodes.
• the thickness of the primer layer may for example be between 2 and 50 nm or vary between these values, which leads to a reliable adhesive strength and a sufficient freedom in the adjustment of the adhesive strength.
• the precursor can be, for example, pulverulent, liquid or gaseous.
• a liquid precursor can be atomized and with a
• Carrier gas can be fed as an aerosol.
• the precursor includes, for example, an organic acid, especially an organic carboxylic acid, preferably
• Acrylic acid or methacrylic acid may be, for example, allylamine, Allyl methacrylates, hydroxyethyl acrylate, (3-aminopropyl) triethoxysilane and / or (3-glycidoxypropyl) trimethoxysilane.
• the process gas includes, for example, N 2 , C0 2 , Ar and / or He. Furthermore, the process gas may comprise hydrogen as the reactive gas (for example, at most 5%).
• the activation of the plasma coating installation causes a change of one or more process parameters of the plasma coating installation, in particular one or more plasma modules, in particular of a process parameter with respect to one
• Plasma power a Päzursoreinspeisung and / or a process gas.
• a process parameter relating to the plasma power may, for example, be the change in the electrode voltage.
• a change in a process parameter with respect to the precursor feed may be a change in the composition of the precursor or the flow rate of the precursor.
• a change of a process parameter with respect to the process gas may be, for example, a change in the composition of the process gas or the flow rate of the process gas.
• the activation of the plasma coating installation may involve a change of one or more process parameters of only a part of a plasma module of a
• the plasma coating installation in particular one or more plasma modules of the plasma coating installation, has a plurality of feed locations, and the activation of the
• Plasma coating plant comprises an at least partially separate control of the feed at the multiple feed points. This can continue one increased spatial resolution of the targeted profile of the adhesive layer can be achieved.
• a change of feed parameters can be achieved, for example, the
• Precursor composition or amount the process gas composition or amount.
• control of the plasma coating system is carried out as a function of an at least partially predetermined adhesion profile.
• a spatially resolved adhesion profile can be specified, from which the targeted profile of the adhesion promoter layer is determined. For example, this is a
• Control unit is provided which at least partially controls the
• Plasma coating plant performs.
• the determination of the activation of the plasma coating installation for producing the specific profile of the adhesion promoter layer can be carried out on the basis of one or more characteristic curves and / or one or more calculation models.
• the current can be carried out on the basis of one or more characteristic curves and / or one or more calculation models.
• the composite layer material comprises a first metallic substrate and a second metallic substrate, wherein the plastic layer between the first and the second metallic substrate is arranged, and the adhesive layer on the first and / or the second metallic substrate and / or the
• the embodiment of the method according to the invention can be used in particular for the production of sandwich panels.
• the statements on the previously described metallic substrate apply.
• the first and the second metallic substrate may be the same or different. It can also be provided more than two metallic substrates. According to a further advantageous embodiment of the invention
• Coated plasma coating system and coated the second metallic substrate by means of a second plasma coating system Coated plasma coating system and coated the second metallic substrate by means of a second plasma coating system.
• first and / or second plasma coating plant a previously described
• Plasma coating systems as described above, be provided.
• the plasma coating systems can also independently of each other have individual of the features described above.
• the plasma coating systems can also independently of each other have individual of the features described above.
• the plasma coating systems can also independently of each other have individual of the features described above.
• Plasma coating equipment the same or different.
• the adhesive strength be adjusted in a planar manner (in other words 2-dimensional) between two layers of the layered composite material, but it can also be the
• Adhesive strength can be adjusted with respect to different layers of the layer composite material, ie with respect to a further dimension (ie 3-dimensional). For example, not only can it be set at which point a layer should delaminate selectively, but also which of the layers should delaminate selectively under load.
• the method according to the invention achieves the aforementioned object by the device comprising: a device for providing the metallic substrate and the device
• a plasma coating apparatus for applying a primer layer along a surface of the metallic substrate and / or the
• Plastic layer by means of plasma coating a control unit for controlling the plasma coating system during the plasma coating to produce the adhesion promoter layer, so that at least in some areas a specific profile of the adhesion promoter layer can be adjusted along the surface of the metallic substrate and / or the plastic layer, and
• Adhesive layer having surface of the metallic substrate and / or connecting the metallic substrate with the
• Adhesive layer having surface of the plastic layer for producing the composite layer material.
• the application of the adhesion promoter layer along the surface of the metallic substrate and / or the plastic layer by means of plasma coating achieves very high adhesive properties between the individual layers of the layered composite material.
• the provision of a control unit achieves activation of the plasma coating system during the plasma coating, so that a precise influencing of the generation of the adhesion promoter layer during the coating can be achieved.
• the resulting adhesive strength can be set locally accurate and resource-efficient.
• Method steps according to preferred embodiments of the method also be disclosed means or means for performing the method steps by preferred embodiments of the device. Likewise, by the disclosure of means for carrying out a method step, the corresponding method step should be disclosed. According to a third teaching of the method according to the invention, the object mentioned in the case of a generic layered composite material is achieved in that the layered composite material is produced by a method according to the invention.
• the specific profile of the adhesion promoter layer has a specifically varying profile along the surface of the metallic substrate and / or the plastic layer, so that the layered composite material has regions with different adhesive strength.
• embodiments of the composite material according to the invention have improved adhesive strengths.
• embodiments of the layered composite material according to the invention have a precisely set varying adhesive strength, wherein the adhesive strength can not only be specifically adjusted locally within an adhesion promoter layer, but also different adhesion promoter layers can be specifically coordinated with one another.
• Fig. L is a schematic representation of an embodiment of a
• FIG. 2 shows a schematic cross-sectional view of an embodiment of the inventive multilayer composite material
• Fig. 3 shows an embodiment of a plasma coating step
• FIG. 6 is a schematic plan view of an alternative arrangement of
• FIG. 7 is a schematic representation of a time course of controlled
• Fig. 8 is a schematic representation of a metallic substrate with a
• Adhesive layer with deliberately varying profile Adhesive layer with deliberately varying profile.
• Fig. 1 shows a schematic representation of an embodiment of a device according to the invention for carrying out an embodiment of a method according to the invention.
• a first and a second metal strip 1, 2 are provided, which of the coils, 2 'by a
• Unwinding device (not shown) are unwound.
• a thermoplastic intermediate layer 3 is provided on a third coil 3 '.
• Each metal strip 1, 2 is plasma-coated by the plasma coating systems 4, 4 ', which serves to apply a bonding agent layer along the respective surfaces of the metal strips 1, 2 by means of plasma coating.
• Plasma coating system 4, 4 ' in this case has two plasma modules 4a and 4b and 4a' and 4b ', respectively. These plasma modules 4a, 4b and 4a ', 4b' are in
• Plasma modules are described in more detail below.
• the plastic layer 3 facing surfaces of both metal strips 1, 2, the metal strips 1, 2 and the plastic layer 3 are connected to form a band-shaped layer composite material 5 by lamination. This is done by means of a laminating device 6, which serves as means for connecting the
• Plastic layer 3 with the adhesion promoter layers having surfaces of the respective metal strip 1, 2 for the preparation of the composite layer material 5 is used and also shown schematically.
• Metal strips 1, 2 with a plasma polymerized adhesion promoter layer an advantageous adhesion of the layer composite material 5 after lamination can be achieved by means of the laminator 6.
• the device shown in Fig. 1 further comprises a control unit (not
• This can be at least partially a targeted profile, for example, a selectively varying profile of the adhesive layer along the surface of the metal strips 1, 2 are set.
• the plasma coating preferably proceeds at atmospheric pressure.
• a process gas is provided, a plasma is generated, a precursor for producing the adhesion promoter layer is fed into the plasma or the plasma afterglow, and a plasma-polymerized adhesion promoter layer is deposited on the respective metal strip 1, 2.
• FIG. 2 shows a schematic cross-sectional view of an exemplary embodiment of a composite layer material according to the invention in the form of a composite sheet 7 which has been produced from the band-shaped layer composite material 5.
• the composite sheet 7 comprises 2 metallic cover sheets 1, 2, for example steel sheets. Both metallic cover sheets 1, 2 have one of the thermoplastic
• Adhesive layers la, lb which have a locally specifically adapted to the application profile.
• FIG. 3 shows an exemplary embodiment of a plasma coating step, here by way of example for the metal strip 2. Plasma coating can thus take place
• the process gas 8 flows between a first electrode 9 and a second electrode 10.
• a plasma 12 is formed between the first and second electrodes 9, 10.
• the Plasma afterglow may extend to the surface of the metal strip 2.
• An aerosol 11 is fed to the plasma afterglow 13.
• the aerosol is formed by a carrier gas and a liquid precursor and directed to the inside of the metal strip 2 together with the process gas 8 and the plasma.
• the plasma-polymerized precursor is deposited on the metal strip 2 as adhesion promoter layer 2a.
• the plasma 12 or the plasma afterglow 13 activates the surface of the metal strip 2 and the precursor contained in the aerosol.
• the plasma-polymerized adhesion promoter layer 2a which may be, for example, 2 to 50 nm, preferably 5 to 30 nm thick.
• the plasma 12 is produced by electrodes 9 ', 10' arranged on both sides of the metal strip 2.
• the aerosol 11 is fed into the plasma 12, resulting in a deposition of a plasma polymerized adhesion promoter layer 2a on the
• a gaseous precursor can be fed.
• Fig. 5 shows a further alternative embodiment of a
• Plasma coating step again exemplified for the metal strip 2.
• the plasma 12 is generated between the first electrode 9 "and the metallic substrate 2, which acts as a second electrode.
• Fig. 6 shows a schematic plan view of an alternative arrangement of
• a plasma coating installation 14 comprising two plasma modules 14a, 14b is provided above a metallic substrate, which here is the metal strip 2, but may also be the metal strip 1.
• the plasma modules may be constructed as shown in FIGS. 3-5 and employed as shown in FIG.
• the plasma modules 14a, 14b are not consecutive but next to each other, that is, arranged transversely to the strip running direction shown by the arrow.
• an adhesion promoter layer is applied along a surface of the metallic substrate 2 by means of plasma coating.
• the plasma coating system 14 is controlled during the plasma coating in such a way that a selectively varying profile of the adhesion promoter layer along the surface of the metal strip 2 is set at least in regions.
• FIG. 7 shows a schematic representation of a time profile of controlled process parameters.
• the diagram shows the time along the x-axis 16 and the size of a process parameter 18a along the y-axis 17
• Plasma module 14a and a process parameter 18b of the plasma module 14b are controlled in such a way that a change of a process parameter of the plasma modules 14a, 14b of the plasma coating plant 14 is achieved over time.
• the process parameter can be determined by the
• a high adhesive strength is achieved by a high value of the process parameter and a low adhesive strength by a low value of the process parameter.
• the process parameter can relate, for example, to the plasma power, the precursor feed or the process gas.
• the process parameter 18a of the plasma module 14a is in a low level in section I, in a middle level in sections II and III, and in a high level in section IV.
• the process parameter 18b of the plasma module 14b is in a middle level in section I, in a high level in section II
• the control of the plasma parameters 18a, 18b can be based, for example, on the fact that a specific profile of the adhesion promoter layer is derived from a desired adhesion profile and from this the control of the process parameters is created, for which purpose one or more characteristic curves and / or one or more calculation models can be used. Will the primer layer 2a applied with the targeted profile, this leads to the desired
• FIG. 8 shows the metal strip 2 after coating with the plasma-polymerized adhesion promoter layer 2 a.
• the metal strip 2 In the region coated by the plasma module 14a, the metal strip 2 has a low adhesive strength in Section Ia, an average adhesive strength in Section IIa and IIIa, and a high adhesive strength in Section IVa.
• the metal strip 2 In the region coated by the plasma module 14b, the metal strip 2 has an average adhesive strength in Section Ib, a high adhesive strength in Section IIb, a high average adhesion in Section IIIb and a high one in Section IVb
• Laminated composite material 5 and a composite sheet 7 are produced.
• the primer layer according to a specific profile along the surface of the metal strips by means of plasma coating, the resulting
• the adhesive strength can be set reliably in three dimensions (on superimposed surfaces of metallic substrates).

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• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Plasma & Fusion (AREA)
• Thermal Sciences (AREA)
• Laminated Bodies (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Nozzles (AREA)
• Other Surface Treatments For Metallic Materials (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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• 2015
  • 2015-05-26 DE DE102015108237.3A patent/DE102015108237A1/de not_active Withdrawn
• 2016
  • 2016-05-19 CN CN201680030238.6A patent/CN107660182B/zh not_active Expired - Fee Related
  • 2016-05-19 KR KR1020177036580A patent/KR20180012284A/ko unknown
  • 2016-05-19 JP JP2017560932A patent/JP2018518391A/ja not_active Withdrawn
  • 2016-05-19 US US15/574,520 patent/US20180126716A1/en not_active Abandoned
  • 2016-05-19 WO PCT/EP2016/061250 patent/WO2016188849A1/de active Application Filing
  • 2016-05-19 EP EP16727645.0A patent/EP3302824A1/de not_active Withdrawn

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