DE102011013220A1 - Method for manufacturing sandwich element in solid construction in region of building, involves coating layer made of polymer material for forming inner lying polymer-cores, and designing covering layer as exterior layer on paper web layers - Google Patents

Method for manufacturing sandwich element in solid construction in region of building, involves coating layer made of polymer material for forming inner lying polymer-cores, and designing covering layer as exterior layer on paper web layers Download PDF

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DE102011013220A1
DE102011013220A1 DE201110013220 DE102011013220A DE102011013220A1 DE 102011013220 A1 DE102011013220 A1 DE 102011013220A1 DE 201110013220 DE201110013220 DE 201110013220 DE 102011013220 A DE102011013220 A DE 102011013220A DE 102011013220 A1 DE102011013220 A1 DE 102011013220A1
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layer
polymer
paper web
cores
sandwich element
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Anmelder Gleich
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • 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
    • B32B15/12—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 paper or cardboard
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam 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
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0228—Aromatic vinyl resin, e.g. styrenic (co)polymers
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/544—Torsion strength; Torsion stiffness
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • 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
    • B32B2419/00—Buildings or parts thereof

Abstract

The method involves coating a layer that is made of polymer material for reciprocally forming inner lying polymer-cores (2) e.g. foamed polystyrene and polyurethane core, with paper web layers (3, 4). A covering layer is designed as an exterior layer on the paper web layers, where the coated layer includes a protective layer on an external outer surface. A sandwich element (1) is provided with the polymer-cores that are arranged on two sides of the paper web layers and coated with an external layer (5) made up fiber plastic. An independent claim is also included for a sandwich element.

Description

Die vorliegende Erfindung betrifft hochfeste Sandwichelemente.The present invention relates to high strength sandwich panels.

Sandwichelemente der unterschiedlichen Art sind im Stand der Technik bekannt. Es gibt im Bereich des Baus Sandwichelemente, die in Massivbauweise hergestellt werden. Diese Massivbauweise fordert die Kombination unterschiedlicher Baumaterialien, was logistisch schwierig ist und hohe Anforderungen an das Know-How stellt. Bekannte Sandwichbauelemente aus unterschiedlichen Werkstoffen haben in der Regel den Nachteil, dass sie keine ausreichende Festigkeit aufweisen.Sandwich elements of different types are known in the art. There are sandwich elements in the area of the construction, which are manufactured in massive construction. This massive construction requires the combination of different building materials, which is logistically difficult and places high demands on the know-how. Known sandwich components made of different materials usually have the disadvantage that they do not have sufficient strength.

Beispielsweise ist aus der DE 103 42 187 ein Sandwichelement bekannt, bei welchem ein Hardschaumkern, beispielsweise aus Polystyrol, mit Gipsfaserplatten beplankt wird. Diese Gipsfaserplatten werden so ausgebildet, dass das Element einen umlaufenden Nut/Federrand aufweist. Auf diese Weise kann das Element mit anderen gleichartigen Elementen verbunden werden.For example, is from the DE 103 42 187 a sandwich element in which a hard foam core, for example of polystyrene, is planked with gypsum fiber boards. These gypsum fiber boards are formed so that the element has a circumferential groove / spring edge. In this way, the element can be connected to other similar elements.

Weitere vorbekannte Sandwichelemente weisen zur Erhöhung der Festigkeit hochfeste Kunststoffe, insbesondere Kohlefaserwerkstoffe auf.Other known sandwich elements have to increase the strength of high-strength plastics, especially carbon fiber materials.

Ein Nachteil der vorbekannten Sandwichbauelemente besteht darin, dass diese entweder keine ausreichende Festigkeit aufweisen oder, wenn sie zur Erlangung ausreichender Festigkeit aufgebaut sind, ein hohes Gewicht haben. Ein Element aus Hartschaumkern, geplankt mit Leichtbauplatten, wiegt bei entsprechender Größe zu viel, um noch ausreichend handelbar zu sein. Somit lassen sich nur vergleichsweise kleine Platten fertigen. Elemente mit hochwertigen Kohlefaserwerkstoffen sind extrem teuer.A disadvantage of the previously known sandwich components is that they either do not have sufficient strength or, if they are constructed to obtain sufficient strength, have a high weight. An element made of hard foam core, planked with lightweight panels, weighs too much in the appropriate size to be still sufficiently tradable. Thus, only comparatively small plates can be produced. Elements with high quality carbon fiber materials are extremely expensive.

Darüber hinaus sind inzwischen die Anforderungen an insbesondere im Baubereich eingesetzte Elemente erheblich gestiegen, vor allem was die Isolationsfähigkeit, die Anschlussfähigkeit und dergleichen anbetrifft.In addition, meanwhile, the requirements for especially used in the construction sector elements have increased significantly, especially as regards the insulation, the connectivity and the like.

Ausgehend vom vorbeschriebenen Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur Herstellung eines hochfesten Sandwichmaterials sowie ein hochfestes Sandwichelement bereitzustellen, welches gute mechanische Festigkeitseigenschaften aufweist, als Leichtbauelement gut und einfach gehandelt werden kann und darüber hinaus hinsichtlich der Herstellung, Lagerung und Transport wirtschaftlich ist.Based on the above-described prior art, the present invention seeks to provide a method for producing a high-strength sandwich material and a high-strength sandwich element, which has good mechanical strength properties, as a lightweight element can be traded well and easily and beyond in terms of production, storage and transport is economical.

Verfahrensseitig ergibt sich als technische Lösung dieser Aufgabe ein Verfahren mit den Merkmalen des Anspruches 1. Ein Sandwichelement ist durch die Merkmale des Anspruches 2 gekennzeichnet.The method side results as a technical solution to this problem, a method having the features of claim 1. A sandwich element is characterized by the features of claim 2.

Das erfindungsgemäße Verfahren besteht aus insgesamt 3 Bauteilen, nämlich

  • • Außen liegenden Lagen von veredelten Papierwaben, die dem Bauteil Steifigkeit geben
  • • einem innen liegenden Kern aus Polyurethan oder Styropor, die eine Isolierung bilden.
The inventive method consists of a total of 3 components, namely
  • • External layers of grafted paper honeycomb that give rigidity to the part
  • • an internal core of polyurethane or styrofoam that forms an insulation.

Die außen liegenden Papierwaben sind so aufgebaut, dass zuerst eine nach außen abschließende Deckschicht, beispielsweise aus Glasfaser, Naturfaser oder auch metallischen Deckschichten kommen. Dabei sollen diese Deckschichten die Wabenkonstruktion zusätzlich versteifen. Sie können aber auch Design- oder Dekoreigenschaften haben (beispielsweise indem poliertes Aluminiumblech verwendet wird) sowie das Material an sich vor Witterungseinflüssen, beispielsweise Feuchtigkeit, schützen.The outer paper honeycombs are constructed in such a way that first an outer cover layer, for example of glass fiber, natural fiber or even metallic outer layers, comes to the outside. These cover layers should additionally stiffen the honeycomb construction. But they can also have design or decorative properties (for example, by using polished aluminum sheet) and protect the material itself from the weather, such as moisture.

Anschließend an diese äußere „Schicht” kommt eine Schicht aus veredelten Papierwaben. Dabei werden diese Papierwaben durch – je nach Anwendung differierende – chemische Tränkungsmittel imprägniert und dadurch deren Eigenschaften wesentlich verändert. Diese Veränderungen ergeben einerseits wesentlich höhere Festigkeiten. Andererseits werden die Papierwaben wasser- und chemikalienfest und sind so für den Einsatz im Außenbereich geeignet. Die eingesetzten Papierwaben haben dabei Materialstärken von 6 bis ca. 50 mm Stärke.Subsequent to this outer "layer" comes a layer of finished paper honeycomb. These paper honeycombs are impregnated by - depending on the application differing - chemical impregnants and thereby significantly changed their properties. On the one hand, these changes result in significantly higher strengths. On the other hand, the paper honeycombs are resistant to water and chemicals and are therefore suitable for outdoor use. The paper honeycombs used have material thicknesses of 6 to approx. 50 mm thickness.

An diese Wabenschicht anschließend kommt eine Schicht aus Glasvlies, Glasfaser oder anderen geeigneten Deckschichten die verhindert, dass die eingesetzte Kernschicht – beispielsweise Styropor – in die Waben eintritt. Diese Schicht führt weiterhin zu einer wesentlichen Verbesserung der Festigkeiten der oberen Wabendeckschicht.Next to this honeycomb layer is a layer of glass fleece, glass fiber or other suitable cover layers which prevents the core layer used - for example Styrofoam - from entering the honeycombs. This layer also leads to a substantial improvement in the strength of the upper honeycomb surface layer.

Anschließend an diese Zwischenschicht kommt eine Schicht aus expandiertem Polystyrol, alternativ Polyurethanschaum. Dieses Material dient dazu, die Isoliereigenschaften des gesamten Bauteils wesentlich zu verbessern. Sie führt außerdem zu einer weiteren Verbesserung der Festigkeit des gesamten Bauteils. Diese Schicht ist zwischen 20 mm und 100 mm dick. Dabei ist die Dicke von der gewünschten Isolierfähigkeit abhängig und frei wählbar.Subsequent to this intermediate layer comes a layer of expanded polystyrene, alternatively polyurethane foam. This material serves to significantly improve the insulating properties of the entire component. It also leads to a further improvement in the strength of the entire component. This layer is between 20 mm and 100 mm thick. The thickness of the desired insulation depends and freely selectable.

An dieser Kernschicht schließt sich – spiegelbildlich – wiederum die Wabenkonstruktion an wie bereits geschildert.The honeycomb construction is connected to this core layer again - as a mirror image - as already described.

Das Besondere an dem Bauteil ist, dass einerseits durch die Wabenkonstruktion, andererseits durch die Dicke des Bauteils ein extrem stabiles Bauteil entsteht, das andererseits extrem leicht ist. Das Bauteil kann sehr hohe Biege- und Druckkräfte aufnehmen.The special feature of the component is that on the one hand by the honeycomb construction, on the other hand by the thickness of the component an extremely stable component is created, which is on the other hand extremely light. The Component can absorb very high bending and compressive forces.

Durch die chemische Zusammensetzung der Wabenbeschichtung ist sichergestellt, dass das eingesetzte Kernmaterial nicht schrumpft, sich auflöst oder sonst wie Abstoßreaktionen zeigt.The chemical composition of the honeycomb coating ensures that the core material used does not shrink, dissolve or otherwise show rejection reactions.

In einer weiteren Evolutionsstufe wird für das Kernmaterial nicht brennbares Material verwendet. In Zusammenspiel mit chemischen Komponenten, die der Wabenbeschichtung zugegeben werden, entsteht dabei ein „unbrennbares” Bauteil.In a further evolutionary stage non-flammable material is used for the core material. In conjunction with chemical components that are added to the honeycomb coating, this creates a "non-combustible" component.

Die Fertigung des gesamten Bauteils erfolgt vorzugsweise in einem durchgehenden Fließprozess. Dabei wird zuerst die untere Papierwabe expandiert und beschichtet sowie beidseits mit den entsprechenden – beschichteten – Deckschichten (beispielsweise aus Glasfaser) versehen. Auf dieses – äußere – Wabenbauteil werden nicht expandierte Polystyrolkugeln aufgebracht und anschließend die äußere Wabenschicht. In einem nächsten Arbeitsschritt wird das Bauteil durch Mikrowellen getrocknet. Dabei expandiert das Styropor und drückt die jeweiligen Wabenteile an die äußeren Begrenzungen.The production of the entire component is preferably carried out in a continuous flow process. In this case, first the lower paper honeycomb is expanded and coated and provided on both sides with the corresponding - coated - outer layers (for example made of glass fiber). On this - outer - honeycomb component unexpanded polystyrene beads are applied and then the outer honeycomb layer. In a next step, the component is dried by microwaves. The polystyrene expands and presses the respective honeycomb parts to the outer boundaries.

Weiterhin wird die Verwendung einer mitlaufenden Presse vorgeschlagen, so dass sich ein fertiges Bauteil ergibt, das in seinen äußeren Abmessungen dem Innendurchmesser der mitlaufenden Presse entspricht.Furthermore, the use of a follower press is proposed so that a finished component results, which corresponds in its outer dimensions to the inner diameter of the follower press.

Besondere Merkmale ergeben sich aus der Festigkeit des Bauteiles an sich: Die beidseitig vorgesehenen veredelten Papierwaben geben „an sich” bereits hochfeste Bauteile. Dadurch, dass beidseits zwei solche Bauteile vorgesehen werden und diese noch mit einer Kernschicht verbunden werden, ergibt ein extrem stabiles und leichtes Bauteil.Special features result from the strength of the component itself: The provided on both sides refined paper honeycomb "give" already high-strength components. The fact that two such components are provided on both sides and these are still connected to a core layer, results in an extremely stable and lightweight component.

Das Bauteil ist sehr leicht, dabei sehr stabil. Es kann aber auch als „unbrennbares” oder „nicht brennbares” Bauteil hergestellt werden. Dabei werden den chemischen Komponenten, welche für die Veredelung der Papierwaben verwendet werden, Komponenten zugesetzt welche zu nicht brennbaren Eigenschaften führen. Die Kernschicht, die standardmäßig aus expandiertem Polystyrol besteht, wird durch ein Material der Firma JSP ersetzt und dadurch unbrennbar.The component is very light, but very stable. However, it can also be produced as a "non-combustible" or "non-combustible" component. In this case, the chemical components which are used for the refinement of the paper honeycomb, components added which lead to non-combustible properties. The core layer, which is made of expanded polystyrene as standard, is replaced with a material from JSP and thus made non-combustible.

Ein besonderes Merkmal ergibt sich auch aus der einstufigen, in einem Fließprozess integrierten Fertigung. Dabei werden die eingesetzten „üblichen” Papierwaben beschichtet, mit Deckschichten versehen, nicht expandiertes Polystyrol zugesetzt und alles gemeinsam Mittels Mikrowellen getrocknet. Dabei expandiert das nicht expandierte Polystyrol zu Styropor und die verschiedenen Bauteile und Materialien „verbacken” zu einem einzigen Bauteil.A special feature also results from the single-stage, integrated in a flow process manufacturing. The used "usual" paper honeycombs are coated, provided with cover layers, unexpanded polystyrene added and everything dried together using microwaves. The unexpanded polystyrene expands to polystyrene and the various components and materials "cake" into a single component.

Weitere Vorteile und Merkmale der Erfindung ergeben sich auf der folgenden Beschreibung anhand der Figur. Dabei zeigen:Further advantages and features of the invention will become apparent from the following description with reference to FIG. Showing:

1: eine perspektivische Darstellung eines Ausführungsbeispiels der Erfindung. 1 : A perspective view of an embodiment of the invention.

Das in 1 gezeigte Ausführungsbeispiel für ein Sandwichelement 1 umfasst einen Polymer-Kern 2 z. B. Styropor, im gezeigten Ausführungsbeispiel Polyurethan. Beidseitig sind Papierwabenschichten 3 und 4 aufgebracht und mit einer äußeren Lage 5 aus einem Faserkunststoff beschichtet.This in 1 shown embodiment of a sandwich element 1 includes a polymer core 2 z. As polystyrene, in the illustrated embodiment polyurethane. On both sides are paper honeycomb layers 3 and 4 applied and with an outer layer 5 coated from a fiber plastic.

Die Papierwaben sind mit chemischen Mitteln imprägniert und durch Verwendung von Schaumkunststoff mit dem Kern 2 verbunden.The paper honeycombs are impregnated with chemical agents and by using foam plastic with the core 2 connected.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Sandwichelementsandwich element
22
Polymer-KernCore polymer
33
PapierwabenschichtPaper honeycomb layer
44
PapierwabenschichtPaper honeycomb layer
55
Lagelocation

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 10342187 [0003] DE 10342187 [0003]

Claims (2)

Verfahren zur Herstellung eines Sandwichelementes, wobei eine Lage aus einem Polymer zur Ausbildung eines innen liegenden Kerns beidseitig mit wenigstens einer Lage aus Papierwaben beschichtet wird, wobei jeweils als äußerste Schicht auf den Papierwaben eine Deckschicht ausgebildet wird.A method for producing a sandwich element, wherein a layer of a polymer for forming an inner core is coated on both sides with at least one layer of paper honeycomb, wherein in each case as the outermost layer on the paper honeycomb, a cover layer is formed. Sandwichelement, hergestellt nach dem Verfahren nach Anspruch 1, gekennzeichnet durch einen Kern aus einem Polymer, welcher beidseitig mit wenigstens einer Lage von Papierwaben beschichtet ist und an beiden äußeren Oberflächen eine Schutzschicht aufweist.Sandwich element, produced by the method according to claim 1, characterized by a core of a polymer which is coated on both sides with at least one layer of paper honeycomb and has a protective layer on both outer surfaces.
DE201110013220 2011-03-05 2011-03-05 Method for manufacturing sandwich element in solid construction in region of building, involves coating layer made of polymer material for forming inner lying polymer-cores, and designing covering layer as exterior layer on paper web layers Withdrawn DE102011013220A1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342187A1 (en) 2003-09-12 2005-04-21 Frank Draeger Sandwich construction element has rigid expanded plastic core and planks on both sides, and core on its oppositely lying sides has groove or tongue corresponding to it, with planks fitted on core with offset in relation to it

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342187A1 (en) 2003-09-12 2005-04-21 Frank Draeger Sandwich construction element has rigid expanded plastic core and planks on both sides, and core on its oppositely lying sides has groove or tongue corresponding to it, with planks fitted on core with offset in relation to it

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