EP2961580B1 - Holz- und verbundwerkstoffplatte sowie verfahren zu deren herstellung - Google Patents

Holz- und verbundwerkstoffplatte sowie verfahren zu deren herstellung Download PDF

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Publication number
EP2961580B1
EP2961580B1 EP14706639.3A EP14706639A EP2961580B1 EP 2961580 B1 EP2961580 B1 EP 2961580B1 EP 14706639 A EP14706639 A EP 14706639A EP 2961580 B1 EP2961580 B1 EP 2961580B1
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EP
European Patent Office
Prior art keywords
wood
popcorn
composite material
intermediate layer
board according
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
EP14706639.3A
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German (de)
English (en)
French (fr)
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EP2961580A1 (de
Inventor
Alireza Kharazipour
Redelf Kraft
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.)
Georg August Universitaet Goettingen
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Georg August Universitaet Goettingen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg August Universitaet Goettingen filed Critical Georg August Universitaet Goettingen
Priority to EP18162407.3A priority Critical patent/EP3366442A1/de
Priority to SI201430813T priority patent/SI2961580T1/sl
Priority to PL14706639T priority patent/PL2961580T3/pl
Publication of EP2961580A1 publication Critical patent/EP2961580A1/de
Application granted granted Critical
Publication of EP2961580B1 publication Critical patent/EP2961580B1/de
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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

Definitions

  • the present invention relates to the field of wood and / or composites, in particular chipboard and fiberboard, insulation boards, boards and composite materials containing lignocellulose and popcorn.
  • Wood and / or composite materials, in particular chipboard or fiberboard have been known for more than a hundred years as an alternative for solid wood in the furniture industry, construction, etc.
  • For the quality of wood and / or composite materials play several factors, including in particular the bulk density, the transverse tensile strength and thickness swelling a role, but especially in many applications, the bending strength.
  • Wood and composites containing popcorn are disclosed. These have the advantage of a low density. However, it is the task of further improving the wood and / or composite material disclosed therein.
  • a plastic molding containing popcorn is from the DE 42 26 988 , which discloses the preamble of claim 1, known.
  • wood and / or composite material is understood in particular materials consisting mainly of mechanically or thermomechanically chemithermomechanically comminuted lignocellulosic material or popcorn, which formed after gluing with a synthetic or natural binder and under temperature and pressure to wood and / or composites are pressed.
  • wood and / or composite plate may contain even more than the three mentioned layers (upper and lower cover layer and intermediate layer).
  • the cover layers of the wood and / or composite board according to the invention have - as mentioned - each having a modulus of elasticity (modulus of elasticity) of ⁇ 1 kN / mm 2 to ⁇ 70 kN / mm 2 .
  • the modulus of elasticity is preferably from ⁇ 1.5 kN / mm 2 to ⁇ 50 kN / mm 2 , more preferably ⁇ 2 kN / mm 2 to ⁇ 40 kN / mm 2 , and most preferably 3 kN / mm 2 to ⁇ 30 kN / mm 2 , and most preferably from ⁇ 5 kN / mm 2 to ⁇ 10 kN / mm 2 .
  • the modulus of elasticity for wood-based materials is measured according to DIN EN 310.
  • the lower and / or upper cover layer have a density of ⁇ 0.5 g / cm 3 to ⁇ 3.0 g / cm 3 .
  • the lower and / or upper cover layers have a density of ⁇ 0.8 g / cm 3 to ⁇ 2.5 g / cm 3 , more preferably from ⁇ 0.9 g / cm 3 to ⁇ 1.5 g / cm 3
  • the proportion of cover layers is from ⁇ 1% to ⁇ 50% of the total wood and / or composite panel according to the invention (% by weight / weight).
  • the proportion of the cover layers is from ⁇ 10% to ⁇ 30% of the total wood and / or composite panel according to the invention (weight / weight).
  • the lower and / or upper cover layer consist predominantly of a material selected from the group consisting of wood chips or fibers, lignocellulose-containing shavings and / or fibers (such as, for example, hemp, flax, etc.), or aus Melamine foil, HPL (High Pressure Laminate), CPL (Continuous Pressure Laminate), Chipboard (eg Thin Chipboard), Fiberboard (Thin HDF), Aluminum Sheet / Sheet, Metal Sheet / Sheet, Sheet Metal, Plywood, Veneer, Glass Fiber, Carbon Fiber , Carbon fiber, ceramic and possibly other additives such. As hydrophobing agents, anti-flame agents, binders and mixtures of all these materials.
  • the intermediate layer contains - as described - popcorn.
  • popcorn in the sense of the present invention comprises in particular all materials which, like the puffed corn ( Zea mays, convar microspermum ), if appropriate after adequate greasing, explode at high temperatures due to fast heating of the water present in the seed and so converted the starch contained in the seed into a foamy consistency.
  • Such behavior is known inter alia by quinoa grain, amaranth, rice or wheat, materials based on these raw materials are explicitly referred to in the context of the present invention as “popcorn” and includes, the term “popcorn” should not limited to corn only and has been chosen for reasons of simplicity, clarity and readability.
  • the intermediate layer is preferably ⁇ 60% (w / w), more preferably ⁇ 80% (w / w), still more preferably> 90% (w / w) and> 95% (w / w) .) Of popcorn and otherwise preferably predominantly of wood chips and / or wood fibers, preferably here. lignocellulosic chips and / or fibers (such as of hemp, flax, etc.) or plastics, thermoplastics, thermosets, plastic fibers, such as. As PP (polypropylene), PE (polyethylene), PVAc (polyvinyl acetate) or PP, PE supporting fibers), optionally with the addition of additives, such as.
  • the intermediate layer may be 100% popcorn.
  • the popcorn has a particle size distribution in which ⁇ 50% and ⁇ 90% of the popcorn have a particle size of ⁇ 2 mm and ⁇ 10 mm.
  • the popcorn has a particle size distribution in which ⁇ 70% and ⁇ 90% of the popcorn have a particle size of ⁇ 2 mm and ⁇ 10 mm.
  • the popcorn has a particle size distribution in which ⁇ 50% and ⁇ 90%, more preferably ⁇ 70% and ⁇ 90% of the popcorn have a particle size of ⁇ 4 mm and ⁇ 10 mm.
  • the popcorn has a particle size distribution in which ⁇ 50% and ⁇ 80% of the popcorn have a particle size of ⁇ 3 mm and ⁇ 8 mm.
  • the popcorn has an average particle size distribution of ⁇ 3 mm and ⁇ 6 mm. This has been found to be beneficial for many applications within the present invention.
  • the popcorn has an average particle size distribution of ⁇ 3.5 mm and ⁇ 5 mm.
  • the fat content of the popcorn before processing is ⁇ 10 (wt)%.
  • fat content is not understood the total amount of fat in popcorn, but the proportion of fat, which was used to hydrophobize the seed epidermis, which leads to better inclusion of the water contained in the seed.
  • the fat content is ⁇ 5 (wt)%
  • the present invention also relates to a method for producing a wood and / or composite panel according to the invention according to claim 7. This method has proven particularly useful for wood and / or composite panels in which the cover layers receive wood fibers and / or wood chips. In this way, the wood and / or composite plate can be made directly by a single Verpress suits.
  • Step a) can be done by simply sprinkling fibers, chips and / or granules.
  • the popcorn granules are preferably either by the Bichsel process ( WO 1999042005A1 ) or by Puffung, z. B. by the microwave method, and then crushed.
  • thermoplastics thermosets, aminoplasts, phenoplasts, isocyanates, proteins, tannins, starch, synthetic binders or natural binders, or mixtures of binders, such as, for example, urea-formaldehyde resin, melamine-formaldehyde resin, melamine-reinforced urea-formaldehyde resin, tannin-formaldehyde resin, Phenol-formaldehyde resin, polymeric diphenylmethane diisocyanate or mixtures thereof.
  • additives such as hydrophobing agents, anti-flaking agents, etc., are attached.
  • Starting material for the following material examples is grain corn; alternatively, however, other starchy grains may be used as well.
  • feed corn kernels are first crushed and the grain fragments subsequently subjected to the pressure and temperature effect according to the Bichsel method (US Pat. WO 1999042005A1 ) expands a defined process.
  • the popcorn granules produced in this way are now fractionated, so that a granulate having particle sizes of 0.5 mm to 8 mm and a bulk density of about 30 kg / m 3 to 70 kg / m 3 is present.
  • starchy grains may be expanded by means of a microwave oven or other common methods.
  • Fig. 1 shows a particle size distribution suitable for the production of composite based on expanded corn kernels and as used in the following examples.
  • a binder liquor based on urea-formaldehyde resin was used, as is commonly used for the industrial production of wood-based materials.
  • this binder liquor contains ammonium sulfate solution (40% strength) and occasionally water repellent (HYDROWAX 138® from SASOL GmbH).
  • the glue liquor of the material plates described below consisted of popcorn granules, 8.0% UF solid resin relative to ator popcorn granules, 1% ammonium sulfate solution (hardener) based on dry solid resin.
  • the wood and / or composite panels according to the invention have now been produced on the basis of the intermediate layers shown under II, each with a weight fraction of 2 ⁇ 20% for the outer layers and 60% for the intermediate layer.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
EP14706639.3A 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zu deren herstellung Active EP2961580B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18162407.3A EP3366442A1 (de) 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zur herstellung
SI201430813T SI2961580T1 (sl) 2013-02-27 2014-02-26 Plošča iz lesenega kompozitnega materiala in pa postopek njene izdelave
PL14706639T PL2961580T3 (pl) 2013-02-27 2014-02-26 Płyta drewniana i kompozytowa oraz sposób jej wytwarzania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013101937.4A DE102013101937A1 (de) 2013-02-27 2013-02-27 Holz- und Verbundwerkstoffplatte
PCT/EP2014/053743 WO2014131801A1 (de) 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zur herstellung

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP18162407.3A Division-Into EP3366442A1 (de) 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zur herstellung
EP18162407.3A Division EP3366442A1 (de) 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zur herstellung

Publications (2)

Publication Number Publication Date
EP2961580A1 EP2961580A1 (de) 2016-01-06
EP2961580B1 true EP2961580B1 (de) 2018-05-16

Family

ID=50179645

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18162407.3A Ceased EP3366442A1 (de) 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zur herstellung
EP14706639.3A Active EP2961580B1 (de) 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zu deren herstellung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18162407.3A Ceased EP3366442A1 (de) 2013-02-27 2014-02-26 Holz- und verbundwerkstoffplatte sowie verfahren zur herstellung

Country Status (8)

Country Link
EP (2) EP3366442A1 (pl)
DE (1) DE102013101937A1 (pl)
ES (1) ES2675403T3 (pl)
HU (1) HUE040186T2 (pl)
PL (1) PL2961580T3 (pl)
PT (1) PT2961580T (pl)
SI (1) SI2961580T1 (pl)
WO (1) WO2014131801A1 (pl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020208035A1 (de) 2019-04-10 2020-10-15 Georg-August-Universität Göttingen Stiftung Öffentlichen Rechts Bindemittel auf basis von ölpflanzentrestern zur herstellung von verbundwerkstoffen
WO2022079202A1 (de) 2020-10-14 2022-04-21 Bichsel Hannes Geschäumte biogranulatkörner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016110076A1 (de) * 2016-05-31 2017-11-30 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Herstellung von Holzwerkstoffplatten sowie Holzwerkstoffplatte
DE102020105205A1 (de) 2020-02-27 2021-09-02 Georg-August-Universität Göttingen Stiftung Öffentlichen Rechts Einsatz von elektromagnetischer Strahlung bei der Herstellung von popcornhaltigen Formteilen
CZ309791B6 (cs) 2022-10-05 2023-10-11 Petr Španiel Izolační nehořlavý voděodolný paropropustný materiál a způsob jeho výroby

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226988A1 (de) * 1992-08-14 1994-02-17 Wulfram John Schmucker Kunststofformteil und Verfahren zu dessen Herstellung
CN1041527C (zh) * 1994-05-10 1999-01-06 池洪 可生物降解无污发泡水基材料
DE19806951A1 (de) 1998-02-19 1999-08-26 Bichsel Vorrichtung und Verfahren zum Puffen von körnigem Gut
DE19926417A1 (de) * 1999-06-10 2000-12-14 Bayerische Motoren Werke Ag Sandwichbauteil
DE102006047279A1 (de) * 2006-10-04 2008-04-10 Georg-August-Universität Göttingen Stiftung Öffentlichen Rechts Verwendung von Popcorn für Holz- und Verbundwerkstoffe
PL2223786T3 (pl) * 2009-02-26 2015-02-27 SWISS KRONO Tec AG Płyta z tworzywa drzewnego oraz sposób wytwarzania płyty z tworzywa drzewnego
EP2319671B1 (de) * 2009-11-05 2014-03-26 Kronotec AG Verfahren zur Herstellung einer OSB-Platte
DE102012101716A1 (de) 2012-03-01 2013-09-05 Georg-August-Universität Göttingen Stiftung Öffentlichen Rechts Verfahren zur Herstellung von Holz- und/oder Verbundwerkstoffen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020208035A1 (de) 2019-04-10 2020-10-15 Georg-August-Universität Göttingen Stiftung Öffentlichen Rechts Bindemittel auf basis von ölpflanzentrestern zur herstellung von verbundwerkstoffen
WO2022079202A1 (de) 2020-10-14 2022-04-21 Bichsel Hannes Geschäumte biogranulatkörner
EP4008509A1 (de) 2020-10-14 2022-06-08 Bichsel, Hannes Geschäumte biogranulatkörner

Also Published As

Publication number Publication date
WO2014131801A1 (de) 2014-09-04
HUE040186T2 (hu) 2019-02-28
PL2961580T3 (pl) 2018-10-31
SI2961580T1 (sl) 2018-10-30
DE102013101937A1 (de) 2014-08-28
EP2961580A1 (de) 2016-01-06
EP3366442A1 (de) 2018-08-29
ES2675403T3 (es) 2018-07-11
PT2961580T (pt) 2018-07-04

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