EP2223786B1 - Plaque en matériau dérivé du bois et procédé de fabrication d'une plaque en matériau dérivé du bois - Google Patents

Plaque en matériau dérivé du bois et procédé de fabrication d'une plaque en matériau dérivé du bois Download PDF

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Publication number
EP2223786B1
EP2223786B1 EP20090002727 EP09002727A EP2223786B1 EP 2223786 B1 EP2223786 B1 EP 2223786B1 EP 20090002727 EP20090002727 EP 20090002727 EP 09002727 A EP09002727 A EP 09002727A EP 2223786 B1 EP2223786 B1 EP 2223786B1
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EP
European Patent Office
Prior art keywords
woodbase
board according
central layer
wood
layers
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.)
Active
Application number
EP20090002727
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German (de)
English (en)
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EP2223786A1 (fr
Inventor
Joachim Prof.Dr. Hasch
Dirk Grunwald
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.)
Kronotec AG
Original Assignee
Kronotec 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
Priority to ES09002727.7T priority Critical patent/ES2523341T3/es
Application filed by Kronotec AG filed Critical Kronotec AG
Priority to EP20090002727 priority patent/EP2223786B1/fr
Priority to PL09002727T priority patent/PL2223786T3/pl
Priority to AU2010219140A priority patent/AU2010219140A1/en
Priority to CA 2750429 priority patent/CA2750429A1/fr
Priority to CN2010800056261A priority patent/CN102292197A/zh
Priority to RU2011139176/13A priority patent/RU2524819C2/ru
Priority to US13/143,777 priority patent/US20110274902A1/en
Priority to JP2011551437A priority patent/JP2012518563A/ja
Priority to PCT/EP2010/001139 priority patent/WO2010097209A1/fr
Priority to UAA201111200A priority patent/UA103230C2/ru
Priority to MX2011008046A priority patent/MX2011008046A/es
Publication of EP2223786A1 publication Critical patent/EP2223786A1/fr
Application granted granted Critical
Publication of EP2223786B1 publication Critical patent/EP2223786B1/fr
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Classifications

    • 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
    • B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam
    • 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
    • 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.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24992—Density or compression of components
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249986—Void-containing component contains also a solid fiber or solid particle

Definitions

  • the invention relates to a wood-based panel according to claim 1 with at least three layers of a wood material, and a method according to claim 15 for producing a wood-based panel.
  • the middle layer contains a light wood material with 30 to 95 percent by weight of wood particles having a mean density of 0.4 - 0.85 g / cm 3 .
  • the filler Based on the light wood material up to 20 percent by weight of polystyrene and / or styrene copolymer are included as a filler, wherein the filler has a bulk density of 10 to 100 kg / m 3 .
  • 2.5 to 50 percent by weight of binder are included, and the average apparent density of the light wood material is less than 600 kg / m 3 .
  • wood-based panels are meant plate-shaped plywood, chipboard, such as flat-pressed, extruded, OSB or Spantischlerplatten, wood fiber boards, such.
  • chipboard such as flat-pressed, extruded, OSB or Spantischlerplatten
  • wood fiber boards such as MDF or HDF fibers and other wood-based panels.
  • MDF or HDF fibers and other wood-based panels Like laminated wood panels, molded wood parts or laminated plywood.
  • stable plates are relatively heavy due to their thickness, which can lead to transport problems especially for self-builders.
  • the EP 1 561 554 B1 discloses a wood-based panel in which between two layers of wood material, a layer of a foamed plastic is introduced, and the plastic layer forms the core of the wood-based panel.
  • the top and bottom of the wood-based panel consists of wood fibers or wood chips.
  • the core is crosslinked with wood fibers or wood shavings.
  • it can be provided to sprinkle a mixture of wood materials and plastic granules between the two outer layers of wood material.
  • the JP 2002-338373 A1 describes a method of making a wood cement board having improved thermal insulation properties.
  • a mixture of wood raw material and cement is introduced into a mold.
  • Foamed resin beads are sprinkled on this first layer.
  • a layer of wood raw material and cement is applied to this layer again.
  • This precursor is pressed in a press so that the foamed resin remains in the middle layer of the press blank. Subsequently, the press blank is exposed in a steam press high-temperature steam, so that the foamed resin particles cure.
  • the DE 1 185 806 B describes a method for producing a sandwich panel with a foamed plastic core layer and support layers of a fiber cement composition that can be applied on both sides, wherein the support layers also consist of a mixture of cement and wood wool can.
  • the US 5,554,429 A describes a wood-based panel with a core layer of at least one OSB board, which has been produced with an intumescent adhesive and provided with at least one cover layer of another OSB board, wherein the cover layer is bonded to a surface of the core layer.
  • the foaming adhesive may be, for example, a polyurethane adhesive.
  • the plate is produced in a hot press at a pressure of about 1 to 2 MPa and a temperature in a range between 150 and 200 ° C, wherein the foaming of the foam takes place in the press.
  • the DE 42 26 988 A1 describes a molding made of foamed synthetic resin-impregnated natural fibers, which consists of two outer layers of natural fibers and of a middle layer enclosed by the outer layers.
  • the middle layer is at least partially formed by a foamed synthetic resin.
  • the middle layer can receive wood chips, wood chips, wood bark and needles of conifers as filler.
  • the blend of natural fibers for the outer layers and resin for the middle layer is placed in a heated mold. After closing the heated mold, the temperature of the resin is brought to, for example 60 ° C, whereby the resin foams and passes through the fiber layers.
  • the EP 1 253 257 A1 describes a method for producing a surface element and a wood-based panel with a layer of foamed polystyrene between two wood-based panels. Two finished wood-based panels are then connected with insulating panels via an adhesive.
  • the WO 2008/116466 describes a method of making a pressed sheet of bio-composite material.
  • a middle core layer of a thermoplastic material which contain natural fibers for reinforcement can be pressed with outer layers.
  • the outer layers may be veneers, for example.
  • the wood-based panel described above is to be improved to the effect that good mechanical / technical parameters are maintained in a further reduction of the density the emission of aldehydes is reduced.
  • a generic wood-based panel is characterized in that the at least one middle layer additionally has at least one foamed natural material.
  • the natural material for example, corn, rice, wheat or a mixture of these come into question.
  • the natural material has the advantage that it has a higher strength compared to conventional materials, but it has a lower density than the wood fibers or wood chips.
  • a mean apparent density of less than 500 kg / m 3 can be achieved, wherein the bulk density of the outer layers is greater than 500 kg / m 3 .
  • the bulk density of the middle layer is less than 450 kg / 3 and the deviation of the average bulk density does not exceed plus / minus 50 kg / m 3 .
  • the middle layer may have fibrous or filamentary components. These components are preferably made of natural materials, in particular flax.
  • the fibrous or filamentary components may also consist of plastic, in particular carbon, PE, PP, PET, glass fibers or two components.
  • cover layer Conventional types of wood are preferably used for the cover layer.
  • middle layer are preferably woods with low bulk density, such as. Poplar or alder.
  • other suitable types of wood can be used.
  • At least the middle layer may contain additional fillers of plastic, preferably based on polyurethane foams and / or polystyrene foams exhibit.
  • the middle layer may additionally contain latent heat storage.
  • latent heat storage plastic capsules can be used with a core of pure wax, as sold for example by BASF under the name "Micronal PCM". If the room temperature rises above the switching temperature of 23 or 26 degrees Celsius defined during the production of the microscopically small plastic capsules, the wax liquefies inside the microcapsules and absorbs the surplus room heat. If the temperature drops, however, the wax solidifies and the capsules release their heat back to the room. For the periodic sequence of melting and solidification, nature provides the temperature differences between day and night. The latent heat storage thus contribute to catch temperature peaks during the day.
  • Suitable adhesives are UF, MUF, MUPF, PF, TF, which may all optionally contain a proportion of protein, such as pPF, soy-based adhesives, pMDI or mixtures of the aforementioned elements.
  • a process for producing a wood-based panel consisting of at least three layers, of which at least one middle layer consists of a mixture of wood material and foamed plastic in which each individual layer is sprinkled with a glue-wetted wood material, is characterized in that the at least one middle layer additionally foamable natural products, in particular corn, rice or wheat are added and the scattered layers are pressed into a plate of desired strength, wherein the natural products foam during the compression.
  • the at least one middle layer is preferably also admixed with plastic fillers based on polyurethane foams or polystyrene foams, which foam in addition to the natural products during the pressing.
  • the foaming of the natural products takes place by bursting, whereby the voids between the wood fibers or wood chips are filled.
  • the foamed natural products additionally act as an aldehyde catcher. It is particularly advantageous that this effect is long-lasting due to the fixed integration into the plate matrix.
  • a wood-based panel is made by sprinkling individual layers into a cake and then pressing the cake to the desired board thickness.
  • the process of gluing the wood fibers or shavings, spreading and pressing has long been known. For this purpose, for example, on the DE 10 2004 006 385 directed.
  • FIG. 1 shows a part of the at least one middle layer 1 of a wood-based panel, which is scattered symmetrically to the axis of symmetry A.
  • This middle layer 1 consists of wood chips or wood fibers 2, conventional fillers 3, such as polystyrene, polyisocyanate or polyol and a blowing agent.
  • the layer 1 contains foamable natural substances 4, such as corn, rice or wheat.
  • filamentary reinforcing fibers 5 are provided on this middle layer 1, which has been sprinkled on a lower cover layer, at least one upper cover layer is scattered and the scattered cake is then pressed.
  • FIG. 3 shows the density profile of the wood-based panel according to the invention over its thickness (thickness). It can be seen that the cover layers 6 have a substantially greater density than the middle layer 1.

Claims (17)

  1. Panneau en matériau à base de bois comprenant au moins trois couches d'un matériau à base de bois, dont au moins une couche intermédiaire (1) constituée d'un mélange de matériau à base de bois et d'un matériau plastique expansé (4) caractérisé en ce que la couche intermédiaire (1) présente en outre au moins un matériau naturel expansé (4).
  2. Panneau en matériau à base de bois selon la revendication 1, caractérisé en ce que le matériau naturel est du maïs, du riz, du blé, ou un mélange de cela.
  3. Panneau en matériau à base de bois selon la revendication 1 ou 2, caractérisé en ce que le matériau à base de bois de la couche intermédiaire (1) présente une densité inférieure à celle du matériau à base de bois des couches externes.
  4. Panneau en matériau à base de bois selon l'une quelconque des revendications précédentes, caractérisé par une densité apparente moyenne de 500 kg/m3.
  5. Panneau en matériau à base de bois selon la revendication 4, caractérisé en ce que la densité apparente de la couche intermédiaire (1) est inférieure à 450 kg/m3.
  6. Panneau en matériau à base de bois selon la revendication 4 ou 5, caractérisé en ce que la densité apparente des couches supérieures est supérieure à 500 kg/m3.
  7. Panneau en matériau à base de bois selon l'une des revendications 4 à 6, caractérisé en ce que l'écart de la densité apparente moyenne ne dépasse pas plus ou moins 50 kg/m3.
  8. Panneau en matériau à base de bois selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la couche intermédiaire (1) présente des composants (5) fibreux ou filamenteux.
  9. Panneau en matériau à base de bois selon la revendication 8, caractérisé en ce que les composants (5) fibreux ou filamenteux sont en matériaux naturels, en particulier en lin.
  10. Panneau en matériau à base de bois selon la revendication 8, caractérisé en ce que les composants fibreux ou filamenteux sont en matériaux plastiques, en particulier carbone, PE, PP, PET ou en fibres de verre.
  11. Panneau en matériau à base de bois selon la revendication 9 ou 10, caractérisé en ce que les composants (5) fibreux ou filamenteux sont constitués de deux composants.
  12. Panneau en matériau à base de bois selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'au moins la couche intermédiaire (1) présente des charges additionnelles en matériau plastique, de préférence à base de mousse de polyuréthane et/ou de mousse de polystyrène.
  13. Panneau en matériau à base de bois selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la couche intermédiaire (1) présente en outre des accumulateurs de chaleur latente pour augmenter la capacité d'accumulation de chaleur.
  14. Panneau en matériau à base de bois selon la revendication 13, caractérisé en ce que les accumulateurs de chaleur latente sont micro-encapsulés.
  15. Procédé de fabrication d'un panneau en matériau à base de bois constitué d'au moins trois couches selon la revendication 1, dans lequel on constitue chaque couche individuelle en dispersant des fibres de bois ou des copeaux de bois mouillés avec un adhésif, et on ajoute des produits naturels expansibles, en particulier du maïs, du riz ou du blé dans l'au moins une couche intermédiaire, les couches formées par dispersion étant pressées sous l'action de la pression et la température pour former un panneau d'épaisseur désirée, lesdits produits naturels moussant immédiatement avant ou au cours de la compression.
  16. Procédé selon la revendication 15, caractérisé en ce que l'on ajoute dans ladite au moins une couche intermédiaire (1) des charges (3) en matériau plastique, en particulier à base de mousse de polyuréthane et/ou de mousse de polystyrène qui moussent elles aussi au cours de la compression.
  17. Procédé selon la revendication 15 ou 16, caractérisé en ce que des fibres de renfort (5) et, le cas échéant, des accumulateurs de chaleur latente sont ajoutés dans ladite au moins une couche intermédiaire (1).
EP20090002727 2009-02-26 2009-02-26 Plaque en matériau dérivé du bois et procédé de fabrication d'une plaque en matériau dérivé du bois Active EP2223786B1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP20090002727 EP2223786B1 (fr) 2009-02-26 2009-02-26 Plaque en matériau dérivé du bois et procédé de fabrication d'une plaque en matériau dérivé du bois
PL09002727T PL2223786T3 (pl) 2009-02-26 2009-02-26 Płyta z tworzywa drzewnego oraz sposób wytwarzania płyty z tworzywa drzewnego
ES09002727.7T ES2523341T3 (es) 2009-02-26 2009-02-26 Placa de derivados de la madera así como procedimiento para fabricar una placa de derivados de la madera
US13/143,777 US20110274902A1 (en) 2009-02-26 2010-02-24 Derived timber material board and a method for producing a derived timber material board
CN2010800056261A CN102292197A (zh) 2009-02-26 2010-02-24 木基板材和制备木基板材的方法
RU2011139176/13A RU2524819C2 (ru) 2009-02-26 2010-02-24 Древесная плита и способ изготовления древесной плиты
AU2010219140A AU2010219140A1 (en) 2009-02-26 2010-02-24 Derived timber material board and a method for producing a derived timber material board
JP2011551437A JP2012518563A (ja) 2009-02-26 2010-02-24 誘導木材板及び誘導木材板の製造方法
PCT/EP2010/001139 WO2010097209A1 (fr) 2009-02-26 2010-02-24 Plaque de matériau en bois et procédé de fabrication d'une plaque de matériau en bois
UAA201111200A UA103230C2 (ru) 2009-02-26 2010-02-24 Древесная плита и способ изготовления древесной плиты
MX2011008046A MX2011008046A (es) 2009-02-26 2010-02-24 Panel de material derivado de madera y metodo para producir un panel de material derivado de madera.
CA 2750429 CA2750429A1 (fr) 2009-02-26 2010-02-24 Plaque de materiau en bois et procede de fabrication d'une plaque de materiau en bois

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20090002727 EP2223786B1 (fr) 2009-02-26 2009-02-26 Plaque en matériau dérivé du bois et procédé de fabrication d'une plaque en matériau dérivé du bois

Publications (2)

Publication Number Publication Date
EP2223786A1 EP2223786A1 (fr) 2010-09-01
EP2223786B1 true EP2223786B1 (fr) 2014-09-17

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Application Number Title Priority Date Filing Date
EP20090002727 Active EP2223786B1 (fr) 2009-02-26 2009-02-26 Plaque en matériau dérivé du bois et procédé de fabrication d'une plaque en matériau dérivé du bois

Country Status (12)

Country Link
US (1) US20110274902A1 (fr)
EP (1) EP2223786B1 (fr)
JP (1) JP2012518563A (fr)
CN (1) CN102292197A (fr)
AU (1) AU2010219140A1 (fr)
CA (1) CA2750429A1 (fr)
ES (1) ES2523341T3 (fr)
MX (1) MX2011008046A (fr)
PL (1) PL2223786T3 (fr)
RU (1) RU2524819C2 (fr)
UA (1) UA103230C2 (fr)
WO (1) WO2010097209A1 (fr)

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US20040067250A1 (en) * 2001-01-18 2004-04-08 Kyu-Teck Han Biodegradable polystyrene capsules and manufacturing method thereof
ATE282745T1 (de) 2001-04-28 2004-12-15 Unidek Group B V Verfahren zur herstellung eines flächenelementes
JP2002338373A (ja) 2001-05-17 2002-11-27 Koa Funenban Kogyo Kk 木質系セメント板の製造方法及び木質系セメント板
JP2003260705A (ja) * 2002-03-07 2003-09-16 Mitsubishi Paper Mills Ltd 蓄熱性繊維ボード及びその利用方法
JP2003276008A (ja) * 2002-03-26 2003-09-30 Mitsui Home Co Ltd 建材パネル及びその製造方法
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JP2012518563A (ja) 2012-08-16
PL2223786T3 (pl) 2015-02-27
ES2523341T3 (es) 2014-11-25
RU2011139176A (ru) 2013-04-10
AU2010219140A1 (en) 2011-08-11
CA2750429A1 (fr) 2010-09-02
UA103230C2 (ru) 2013-09-25
MX2011008046A (es) 2011-09-06
EP2223786A1 (fr) 2010-09-01
US20110274902A1 (en) 2011-11-10
RU2524819C2 (ru) 2014-08-10
WO2010097209A1 (fr) 2010-09-02
CN102292197A (zh) 2011-12-21

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