DE102013011450A1 - Wood plastic composite material - Google Patents

Wood plastic composite material Download PDF

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Publication number
DE102013011450A1
DE102013011450A1 DE102013011450.0A DE102013011450A DE102013011450A1 DE 102013011450 A1 DE102013011450 A1 DE 102013011450A1 DE 102013011450 A DE102013011450 A DE 102013011450A DE 102013011450 A1 DE102013011450 A1 DE 102013011450A1
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DE
Germany
Prior art keywords
wood
plastic composite
composite material
cork
belt press
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Withdrawn
Application number
DE102013011450.0A
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German (de)
Inventor
Bernhard Voith
Diethard Cascorbi
Jürgen Haase
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Pinuform & Co Kg De GmbH
Bernhard Voith GmbH
Original Assignee
PINUFORM & Co KG GmbH
TTC Technology Center GmbH
TTC TECHNOLOGY CT GmbH
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Priority to DE102013011450.0A priority Critical patent/DE102013011450A1/en
Publication of DE102013011450A1 publication Critical patent/DE102013011450A1/en
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/045—Reinforcing macromolecular compounds with loose or coherent fibrous material with vegetable or animal fibrous material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • B32B2307/536—Hardness
    • 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
    • B32B2607/00—Walls, panels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene

Abstract

Die Erfindung betrifft einen Holz-Kunststoff-Verbundwerkstoff mit Anteilen von Polypropylen (PP), Polyethylen (PE) und Holzfasern, wobei selbiger auf einer Doppelbandpresse, vorzugsweise als ein Plattenmaterial, hergestellt wird. Gemäß der Erfindung ist der Holzfaseranteil variabel.The invention relates to a wood-plastic composite with proportions of polypropylene (PP), polyethylene (PE) and wood fibers, the selbiger on a double belt press, preferably as a plate material is prepared. According to the invention, the wood fiber content is variable.

Description

Die Erfindung betrifft einen Holz-Kunststoff-Verbundwerkstoff (WPC) gemäß dem Oberbegriff des Anspruches 1.The invention relates to a wood-plastic composite material (WPC) according to the preamble of claim 1.

Der Begriff Holz-Kunststoff-Verbundwerkstoff, bzw. abgekürzt WPC, der in der hier vorliegenden Anmeldung verwendet wird, wird im englischen Sprachraum auch Wood(-fiber)-Polymer Composite genannt und bezeichnet einen thermoplastisch verarbeitbaren Verbundwerkstoff, der aus unterschiedlichen Anteilen von Holz – typischerweise Holzmehl – Kunststoffen und Additiven hergestellt wird. Weil der Werkstoff Holz-Kunststoff-Verbundwerkstoff international auch anders verwendet wird, wurde hier eine entsprechende Definition vorangestellt.The term wood-plastic composite material, or abbreviated WPC, which is used in the present application, is also referred to in the English language as Wood (-fiber) polymer composite and refers to a thermoplastically processable composite material, which consists of different proportions of wood - typically made of wood flour - plastics and additives. Because the material wood-plastic composite material is also used differently internationally, a corresponding definition has been prefixed here.

Typischerweise bestehen Holz-Kunststoff-Verbundwerkstoffe in Deutschland und Mitteleuropa aus einem Holzfaser- oder Holzmehlanteil von 50 bis 90% und einer Kunststoffmatrix aus Polypropylen (PP) oder weniger häufig aus Polyethylen (PE). Aufgrund der thermischen Empfindlichkeit des Holzes sind nur Verarbeitungstemperaturen von unter 200° Celsius möglich.Typically, wood-plastic composites in Germany and Central Europe consist of a wood fiber or wood flour content of 50 to 90% and a plastic matrix of polypropylene (PP) or less frequently of polyethylene (PE). Due to the thermal sensitivity of the wood only processing temperatures below 200 ° C are possible.

Gegenstände aus Holz-Kunststoff-Verbundwerkstoffen haben gegenüber den traditionellen Holzwerkstoffen den Vorteil, dass, dass sie eine freie, 3-dimensionale Formbarkeit und eine höhere Feuchteresistenz aufweisen. Gegenüber Vollkunststoffen haben Holz-Kunststoff-Verbundwerkstoffe den Vorteil, dass sie eine höhere Steifigkeit und einen geringeren thermischen Ausdehnungskoeffizient haben.Objects made of wood-plastic composites have the advantage over traditional wood-based materials that they have a free, 3-dimensional formability and a higher moisture resistance. Compared to solid plastics, wood-plastic composites have the advantage that they have a higher rigidity and a lower thermal expansion coefficient.

Wie eingangs bereits erwähnt, ist der Holzanteil nach dem Stand der Technik relativ hoch.As already mentioned, the wood content according to the prior art is relatively high.

Es ist deshalb Aufgabe der Erfindung weitere Zusammensetzungen bzw. Herstellungsarten eines Holz-Kunststoff-Verbundwerkstoffes zu finden, damit andere Gestaltungsmöglichkeiten und/oder Werkstücke realisiert werden können.It is therefore an object of the invention to find other compositions or production methods of a wood-plastic composite material, so that other design options and / or workpieces can be realized.

Die Erfinder haben durch vielfältige Versuche erkannt, dass auch bei einem Holzanteil von nur 25 bis 35% die positiven Eigenschaften des Holz-Kunststoff-Verbundwerkstoffes erhalten bleiben, aber zugleich weitere Anwendungsmöglichkeiten realisierbar sind.The inventors have recognized through numerous experiments that even with a wood content of only 25 to 35%, the positive properties of the wood-plastic composite material are retained, but at the same time other applications are feasible.

Bisher werden Holz-Kunststoff-Verbundwerkstoffe mittels Extrudieren, Spitzgießen, Rotationsguss und Tiefziehen verarbeitet.So far, wood-plastic composites are processed by means of extrusion, injection molding, rotational molding and deep drawing.

Hier haben die Erfinder aber auch erkannt, dass Holz-Kunststoff-Verbundwerkstoffe auch auf einer Doppelbandpresse – wie sie beispielsweise aus den Schriften DE 197 51 516 C2 oder DE 10 2011 008 974 A1 bekannt sind – hergestellt werden können. Da die Arbeitsbreite einer derartigen Doppelbandpresse breiter ist als beispielsweise die Öffnung eines Extrusionswerkzeuges, können breitere Platten als bisher üblich gefertigt werden. Die bei einer Doppelbandpresse entstehenden ungenauen Längskanten können beispielsweise durch Sägen begradigt werden. Das Ablängen erfolgt – wie bisher auch – durch ein Quertrennen.Here, the inventors have also recognized that wood-plastic composites on a double belt press - as for example from the writings DE 197 51 516 C2 or DE 10 2011 008 974 A1 are known - can be produced. Since the working width of such a double-belt press is wider than, for example, the opening of an extrusion tool, wider plates than hitherto customary can be produced. The inaccurate longitudinal edges created in a double-belt press can be straightened by sawing, for example. The cutting is done - as before - by a cross-cutting.

Aus dem Stand der Technik ist bekannt, dass auf einer Doppelbandpresse Korkbahnen hergestellt werden. Auch ist bekannt, dass diese Korkbahnen mit anderen Bahnen thermoplastisch verbunden werden. Hier, also zur vorliegenden Erfindung, haben die Erfinder aber ebenfalls erkannt, dass die Korkbahnen auch mit einem plattenförmigen Holz-Kunststoff-Verbundwerkstoff auf einer Doppelbandpresse verbunden werden können. Der Vorteil besteht hierin, dass man keinen zusätzlichen Kleber benötigt, weil durch den Fertigungsprozess in der Doppelbandpresse der Holz-Kunststoff-Verbundwerkstoff angeschmolzen wird, wodurch sich die Korkbahn mit dem Holz-Kunststoff-Verbundwerkstoff – insbesondere nach dem Abkühlen des Holz-Kunststoff-Verbundwerkstoffes – verbindet.From the prior art it is known that cork tracks are produced on a double belt press. It is also known that these cork webs are thermoplastically connected to other webs. Here, therefore, to the present invention, the inventors have also recognized that the Korkbahnen can also be connected to a plate-shaped wood-plastic composite material on a double belt press. The advantage of this is that you do not need additional glue, because the wood-plastic composite material is melted by the manufacturing process in the double belt press, causing the cork track with the wood-plastic composite material - especially after cooling the wood-plastic composite material - connects.

Ein weiterer Vorteil der beschriebenen Verbindung einer Korkbahn mit einem Holz-Kunststoff-Verbundwerkstoff besteht darin, dass diese Verbindung weichmacherfrei ist.Another advantage of the described connection of a cork track with a wood-plastic composite material is that this compound is plasticizer-free.

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 19751516 C2 [0009] DE 19751516 C2 [0009]
  • DE 102011008974 A1 [0009] DE 102011008974 A1 [0009]

Claims (4)

Holz-Kunststoff-Verbundwerkstoff (WPC) bestehend aus Holzfasern und Kunststoffen, wobei als Kunststoffe in erster Linie Polypropylen (PP), Polyethylen (PE), aber auch Polystyrol (PS), Polycarbonat (PC) und Polyvinylchlorid (PVC) enthalten können,, wobei der Holzanteil zwischen 90 und 10% beträgt, dadurch gekennzeichnet, dass der Holz-Kunststoff-Verbundwerkstoff auf einer Doppelbandpresse hergestellt wird, vorzugsweise als ein Plattenmaterial.Wood-plastic composite (WPC) consisting of wood fibers and plastics, plastics being primarily polypropylene (PP), polyethylene (PE), but also polystyrene (PS), polycarbonate (PC) and polyvinyl chloride (PVC), wherein the wood content is between 90 and 10%, characterized in that the wood-plastic composite material is produced on a double belt press, preferably as a plate material. Holz-Kunststoff-Verbundwerkstoff nach Anspruch 1, dadurch gekennzeichnet, dass das Plattenmaterial mit einer außenliegenden Korkschicht versehen ist.Wood-plastic composite material according to claim 1, characterized in that the plate material is provided with an outer cork layer. Holz-Kunststoff-Verbundwerkstoff mindestens einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Korkschicht durch Anschmelzen des Holz-Kunststoff-Verbundwerkstoffs und anschließendem wieder Abkühlen, mit der Korkschicht verbunden wird.Wood-plastic composite material according to at least one of claims 1 or 2, characterized in that the cork layer is connected by melting the wood-plastic composite material and then cooling again, with the cork layer. Holz-Kunststoff-Verbundwerkstoff nach Anspruch 3, dadurch gekennzeichnet, dass die Korkschicht aus Polymer gebundenen Korkpartikel besteht.Wood-plastic composite material according to claim 3, characterized in that the cork layer consists of polymer-bound cork particles.
DE102013011450.0A 2013-07-10 2013-07-10 Wood plastic composite material Withdrawn DE102013011450A1 (en)

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DE102013011450.0A DE102013011450A1 (en) 2013-07-10 2013-07-10 Wood plastic composite material

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DE102013011450.0A DE102013011450A1 (en) 2013-07-10 2013-07-10 Wood plastic composite material

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106497117A (en) * 2016-11-18 2017-03-15 安徽淮宿建材有限公司 A kind of environmental protection flame retardant Wood-plastic floor and preparation method thereof
CN111516323A (en) * 2020-05-08 2020-08-11 东莞铭丰生物质科技有限公司 Polymer co-extrusion wood-plastic floor and preparation method thereof
CN111703155A (en) * 2020-04-28 2020-09-25 安徽昊森新材料科技有限公司 Wood-plastic composite material and preparation method thereof
DE102020119782A1 (en) 2020-07-27 2022-01-27 Benjamin Hafner Covering element, in particular for a floor covering, and method for its production
DE102020119771A1 (en) 2020-07-27 2022-01-27 Ibotac GmbH & Co. KG Flat plates and method of making them

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751516C2 (en) 1997-11-21 2003-04-03 Schilling Knobel Gmbh Process for the production of thermoset webs from thermoplastic polymer material particles
DE102011008974A1 (en) 2011-01-20 2012-07-26 Karl-Heinz Peter Scholz Polymer bonded web and process for its preparation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751516C2 (en) 1997-11-21 2003-04-03 Schilling Knobel Gmbh Process for the production of thermoset webs from thermoplastic polymer material particles
DE102011008974A1 (en) 2011-01-20 2012-07-26 Karl-Heinz Peter Scholz Polymer bonded web and process for its preparation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106497117A (en) * 2016-11-18 2017-03-15 安徽淮宿建材有限公司 A kind of environmental protection flame retardant Wood-plastic floor and preparation method thereof
CN111703155A (en) * 2020-04-28 2020-09-25 安徽昊森新材料科技有限公司 Wood-plastic composite material and preparation method thereof
CN111516323A (en) * 2020-05-08 2020-08-11 东莞铭丰生物质科技有限公司 Polymer co-extrusion wood-plastic floor and preparation method thereof
DE102020119782A1 (en) 2020-07-27 2022-01-27 Benjamin Hafner Covering element, in particular for a floor covering, and method for its production
DE102020119771A1 (en) 2020-07-27 2022-01-27 Ibotac GmbH & Co. KG Flat plates and method of making them

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