EP1527859A1 - Osb-board - Google Patents
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- EP1527859A1 EP1527859A1 EP04025519A EP04025519A EP1527859A1 EP 1527859 A1 EP1527859 A1 EP 1527859A1 EP 04025519 A EP04025519 A EP 04025519A EP 04025519 A EP04025519 A EP 04025519A EP 1527859 A1 EP1527859 A1 EP 1527859A1
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- Prior art keywords
- strands
- osb
- osb board
- wood
- board
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- 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
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
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- 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
- B27N1/00—Pretreatment of moulding material
- B27N1/003—Pretreatment of moulding material for reducing formaldehyde gas emission
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- 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
Definitions
- the invention relates to an OSB board, in particular for the use in the automotive sector, in the furniture sector or indoors from one or more layers of with Binders provided and pressed beach. Further the invention relates to a corresponding component for Use in a vehicle, in a piece of furniture or in an interior. Finally, the invention relates to a corresponding piece of furniture.
- OSB board On an Oriented Beach Board Plate (OSB board) in the Meaning of the invention is a plate the from at least one layer or layer of compressed flat wood shavings, the so-called beaches, consists.
- the Strands of a location are in a preferred direction oriented, for example in the plate longitudinal direction or in plate transverse direction.
- the beaches are in front of the Pressing provided with a binder.
- the exact Production of an OSB board is described in "Pocketbook of Chipboard Technology", 4th revised Edition, 2000, authors Deppe and Ernst.
- a test specimen with a width of 40 mm, a length of 100 mm and any Test specimen thickness over a period of three hours in a 1 liter plastic bottle stored in the Bottle bottom are 50 ml of distilled water.
- the test takes place at a temperature of 60 ° C.
- the while exiting formaldehyde is absorbed by the water, the content of formaldehyde in the water subsequently determines and from this the concentration of formaldehyde indicated and in milligrams per kilogram of dry sample is calculated.
- test chamber method Another method for determining the formaldehyde content is the test chamber method according to the European standard prENV 717-1.
- a test specimen with a specific surface eg a 1 m 2 , total surface area as the sum of top, bottom and edge surface
- a tight chamber with a certain volume eg 1 m 3
- the air is conditioned so that a certain relative humidity (eg 45%) is established in the chamber.
- the chamber itself is tempered to 23 ° C during the test. Now, the air surrounding the test specimen and discharging from the chamber takes formaldehyde out of the specimen.
- the effluent air is then analyzed periodically for its formaldehyde content. From experience, the formaldehyde content of the air decreases with the test time and reaches a constant minimum value, the so-called compensation concentration.
- the test value is the equilibrium concentration of formaldehyde expressed in ppm.
- the perforator method after the European standard EN 120 mentions a procedure for Determination of free formaldehyde content in one Product describes.
- This is in a Extraction apparatus (the so-called perforator) means Toluene on reflux boils off the free formaldehyde the specimen (about 100 g) expelled and in water converted. After an extraction time of about two Hours is the aqueous formaldehyde solution of toluene separated and determines the formaldehyde concentration. Under Consideration of the sample weight is on the free Formaldehyde content of 100 g sample dry mass recalculated. There is an influence of Sample moisture, which is why the standard is a correction of Moisture content via a calculation formula and a Normalization of the final test value to a sample moisture of 6.5%.
- the so-called gas analysis method is carried out after a sample conditioning for 24 hours via CaCl 2 , this corresponds to a relative humidity of 0%, an analysis by means of a gas chromatograph with head-space sensor.
- a comminuted sample is tempered for five hours at a temperature of 120 ° C in the head-space transmitter and the analyzed by gas chromatographs values of the organic constituents in micrograms of carbon per gram sample output.
- the qualitative evaluation must show that no carcinogenic substances are detected according to the list of MAK values.
- the MAK values list is published annually by the Senate Commission at the Deutsche Deutschen Deutschen Deutschenstician for testing harmful ingredients edited. It contains information about the maximum permissible concentration of certain substances on Workplace, the so-called MAK value. It gets away assumed that in compliance with the said Concentrations a health hazard or Inappropriate harassment of employees not to is expected.
- the MAK values list is in section III the classification of certain agents after their proven or suspected carcinogenicity.
- odor test Another test method is the so-called odor test.
- the test vessel is then cooled to 60 ° C.
- At least three test persons assess the subjective sense of smell of the air in the test vessel and evaluate it.
- the notes 1 to 3 mean that the smell is not noticeable until clearly, but not disturbing.
- the notes 4 to 6 mean that the smell is disturbing to unbearable.
- fogging test is a candidate with a diameter of 80 mm in one with a Aluminum foil sealed glass container for 16 hours stored at 100 ° C.
- the exiting, condensable Components deposit on the aluminum foil.
- the resulting mass increase of the film is through Weighing determined and expressed in milligrams.
- formaldehyde-free binder is independent of influencing the emission behavior also for the purpose of achieving special Strength properties of wood moldings known as this is described for example in DE 197 56 154 C1.
- one formaldehyde-free binder is not limited to a specific type of wood provided.
- at Use of a formaldehyde-free binder are according to DE 197 56 154 C1 all conceivable soft and Hardwood species equally suitable.
- the present invention is based on the object an OSB board of the type mentioned in such a way to further educate that emission behavior continues is improved without sacrificing the mechanical and technological Properties of the OSB board in purchase to have to take.
- the term means low emission, that according to the perforator method the content to formaldehyde based on 100 g dry matter less than Is 3.0 mg and in particular less than or equal to 2.5 mg is.
- An OSB board is also low in emissions according to the invention, if after the bottle method the content of formaldehyde based on 1 kg dry matter is less than 3.0 mg and in particular smaller or equal to 1 mg.
- a plate is then Low emissions, if according to the gas analysis method of Formaldehyde content of OSB board based on 1 g Dry matter is less than 90 ⁇ gC and in particular is less than or equal to 60 ⁇ gC.
- an OSB board even when low-emission, if the OSB board after the fogging test a mass condensable constituents less than 4.2 mg and especially less than or equal to 4 mg.
- OSB board For a multi-layer, in particular 3-layer, OSB board It is also advantageous if the strands of each layer from birch, alder, linden, willow and / or poplar wood consist.
- the formaldehyde-free binder Isocyanate-based binder can be used as a binder PMDI.
- the strands of adjacent layers of each consist of different types of wood. So can For example, the middle class excluding beaches made of alder and the two outer layers exclusively Strands of birch included.
- the object of the invention is also achieved by a Component for use in a piece of furniture, in particular a cabinet comprising at least one OSB panel, wherein the plate is formed as described above.
- the problem is also solved by a component for Use in an interior, in particular as Cladding a wall comprising at least one OSB board, the plate being as previously described is trained.
- the object of the invention is also by a piece of furniture, in particular a cabinet, with solved at least one OSB plate, with the plate like previously described.
- Stranded pine trunks became dried strands for the two outer layers and the middle layer produced.
- the strands for the cover layers were with commercial binder based on melamine-urea-phenol-formaldehyde (MUPF) and the Strands for the middle layer with formaldehyde-free PMDI.
- MUPF melamine-urea-phenol-formaldehyde
- the three layers became a 3-layered one OSB board produced, with the beaches in the individual layers were oriented in the same way as the strands of the invention described above Embodiment.
- the mass fractions of topcoat too Middle class were about 1: 1.
- the resulting molded product was in a Contiroll press to a solid endless plate by the action of pressure and temperature pressed, then in formats separated and after cooling in Sternwender in pile stored.
- the test results are shown in Table 1.
- a plate was analogous to Example 1 and the manufactured according to the embodiment. Instead of the wood species spruce was used and the wood species spruce instead of MUPF as a binder was only PMDI used. The test results are in Table 1 cited.
- each layer 2, 3 and 4 consists made of a mixture of 50% birchwood strands and 50 % Alderwood strands.
- the binder used is PMDI, which is formaldehyde-free.
- the OSB board 1 described above has a particular good emission behavior for formaldehyde, organic Constituents, odor and condensable constituents, as a comparison with the previous examples the prior art shows.
- the test results are in Table 1 executed.
- a plate was analogous to embodiment 1 produced. However, instead of the wood species Birch and alder the species of willow, poplar and linden too used in equal parts. The test results are in Table 1.
- a plate was analogous to embodiment 1 produced. As wood species came for the outer ones Cover layers and the middle layer of different woods to Commitment. The weight ratio middle layer: top layer is 1: 1. The ratio of the strands in the cover layers Alder: Birch is 1: 1. The ratio of the beaches in the Middle pine: Spruce is also 1: 1. The Test results are shown in Table 1.
- a plate was analogous to Embodiment 3 produced.
- For the individual layers of the plate were used different types of wood and that is the type of wood Birch for the top layers and for the middle layer Mixture alder: Willow: lime in the ratio 4: 2: 1.
- the Test results are shown in Table 1.
Abstract
Description
Die Erfindung betrifft eine OSB-Platte, insbesondere für die Verwendung im Automotivbereich, im Möbelbereich oder in Innenräumen aus einer oder mehreren Lagen von mit Bindemittel versehenen und verpressten Strands. Ferner betrifft die Erfindung ein entsprechendes Bauteil zur Verwendung in einem Fahrzeug, in einem Möbelstück oder in einem Innenraum. Schließlich betrifft die Erfindung ein entsprechendes Möbelstück.The invention relates to an OSB board, in particular for the use in the automotive sector, in the furniture sector or indoors from one or more layers of with Binders provided and pressed beach. Further the invention relates to a corresponding component for Use in a vehicle, in a piece of furniture or in an interior. Finally, the invention relates to a corresponding piece of furniture.
Bei einer Oriented-Strand-Board-Platte (OSB-Platte) im Sinne der Erfindung handelt es sich um eine Platte die aus zumindest einer Schicht bzw. Lage von verpressten flachen Holzspänen, den sogenannten Strands, besteht. Die Strands einer Lage sind in einer bevorzugten Richtung orientiert, beispielsweise in Plattenlängsrichtung oder in Plattenquerrichtung. Dabei werden die Strands vor dem Verpressen mit einem Bindemittel versehen. Die genaue Herstellung einer OSB-Platte ist beschrieben im "Taschenbuch der Spanplatten-Technik", 4. überarbeitete Auflage, 2000, Autoren Deppe und Ernst.On an Oriented Beach Board Plate (OSB board) in the Meaning of the invention is a plate the from at least one layer or layer of compressed flat wood shavings, the so-called beaches, consists. The Strands of a location are in a preferred direction oriented, for example in the plate longitudinal direction or in plate transverse direction. The beaches are in front of the Pressing provided with a binder. The exact Production of an OSB board is described in "Pocketbook of Chipboard Technology", 4th revised Edition, 2000, authors Deppe and Ernst.
Aufgrund ihrer besonderen mechanisch-technologischen Eigenschaften werden solche OSB-Platten in zunehmendem Maße im Automotivbereich, im Möbelbereich oder in Innenräumen eingesetzt. Im Automotivbereich werden beispielsweise Pkw, Lkw, Busse, Schienenfahrzeuge, Schiffe, Flugzeuge etc. mit solchen Platten ausgestattet. Ferner werden Möbelstücke, zum Beispiel Schränke, mit solchen Platten gefertigt. Auch Innenräume wie Büroräume, Wohnräume etc. können, beispielsweise als Verkleidung, diese Platten aufweisen.Due to its special mechanical and technological Properties are becoming such OSB boards in increasing Dimensions in the automotive sector, in the furniture sector or in Used indoors. In the automotive sector For example, cars, trucks, buses, rail vehicles, Ships, aircraft etc. equipped with such plates. Furthermore, furniture, for example, cabinets, with made of such plates. Even interiors like office space, Living rooms, etc. can, for example, as a disguise, have these plates.
Im Zuge dieser Anwendungsgebiete ist in besonderem Maße auf möglichst geringe Emissionen zu achten. Unter Emissionen im Sinne der Erfindung ist nicht nur die Formaldehydabgabe zu verstehen, die den "klassischen" Emissionsparameter von Holzwerkstoffen darstellt, sondern auch andere freigesetzte Komponenten, die für die Verwendung im Automobil relevant sind.In the course of these application areas is in particular extent to pay attention to the lowest possible emissions. Under Emissions within the meaning of the invention is not only the Formaldehyde release, which is the "classic" Emission parameter of wood materials represents, but Other components released for the Use in the automobile are relevant.
Zur Bestimmung der Emissionen sind mehrere Methoden bekannt.There are several methods for determining emissions known.
Zur Bestimmung des Formaldehydgehalts wird bei der sogenannten Flaschenmethode ein Prüfling mit einer Breite von 40 mm, einer Länge von 100 mm und einer beliebigen Prüflingdicke über einen Zeitraum von drei Stunden in einer 1-Liter-Kunststoffflasche gelagert, in der sich am Flaschenboden 50 ml von destilliertem Wasser befinden. Die Prüfung erfolgt bei einer Temperatur von 60°C. Das dabei austretende Formaldehyd wird vom Wasser absorbiert, wobei der Gehalt an Formaldehyd im Wasser anschließend bestimmt und daraus die Konzentration an Formaldehyd angegeben und in Milligramm pro Kilogramm trockene Probe berechnet wird.To determine the formaldehyde content is in the So-called bottle method, a test specimen with a width of 40 mm, a length of 100 mm and any Test specimen thickness over a period of three hours in a 1 liter plastic bottle stored in the Bottle bottom are 50 ml of distilled water. The test takes place at a temperature of 60 ° C. The while exiting formaldehyde is absorbed by the water, the content of formaldehyde in the water subsequently determines and from this the concentration of formaldehyde indicated and in milligrams per kilogram of dry sample is calculated.
Eine weitere Methode zur Bestimmung des Formaldehydgehalts ist die Prüfkammermethode nach der Europäische Norm prENV 717-1. Dabei wird ein Prüfling mit einer bestimmten Oberfläche (z.B. ein 1 m2, gesamte Oberfläche als Summe von Oberseite, Unterseite und Kantenfläche) in eine dichte Kammer mit einem bestimmten Volumen (z.B. 1 m3) gegeben. Der Kammer wird saubere Luft zugeführt, so dass sich eine bestimmte Luftwechselzahl ergibt (z.B. 1 m3/h = Luftwechsel 1). Die Luft ist so konditioniert, dass sich in der Kammer eine bestimmte relative Luftfeuchtigkeit (z.B. 45 %) einstellt. Die Kammer selbst wird während der Prüfung auf 23 °C temperiert. Nun nimmt die den Prüfling umgebende und aus der Kammer ausströmende Luft aus dem Prüfling ausströmendes Formaldehyd auf. Die ausströmende Luft wird dann in regelmäßigen Abständen auf ihren Formaldehydgehalt analysiert. Der Formaldehydgehalt der Luft nimmt erfahrungsgemäß mit der Prüfzeit ab und erreicht einen konstanten Minimalwert, die sogenannte Ausgleichskonzentration. Der Prüfwert ist die Ausgleichskonzentration von Formaldehyd angegeben in ppm.Another method for determining the formaldehyde content is the test chamber method according to the European standard prENV 717-1. In this case, a test specimen with a specific surface (eg a 1 m 2 , total surface area as the sum of top, bottom and edge surface) in a tight chamber with a certain volume (eg 1 m 3 ) is given. The chamber is supplied clean air, so that there is a certain number of air changes (eg 1 m 3 / h = air change 1). The air is conditioned so that a certain relative humidity (eg 45%) is established in the chamber. The chamber itself is tempered to 23 ° C during the test. Now, the air surrounding the test specimen and discharging from the chamber takes formaldehyde out of the specimen. The effluent air is then analyzed periodically for its formaldehyde content. From experience, the formaldehyde content of the air decreases with the test time and reaches a constant minimum value, the so-called compensation concentration. The test value is the equilibrium concentration of formaldehyde expressed in ppm.
Schließlich sei noch die Perforatormethode nach der Europäischen Norm EN 120 erwähnt, die ein Verfahren zur Bestimmung des freien Formaldehydgehaltes in einem Produkt beschreibt. Dazu wird in einer Extraktionsapparatur (dem sogenannten Perforator) mittels Toluol auf Rückfluss kochend das freie Formaldehyd aus dem Prüfling (ca. 100 g) ausgetrieben und in Wasser übergeführt. Nach einer Extraktionsdauer von ca. zwei Stunden wird die wässrige Formaldehydlösung vom Toluol getrennt und die Formaldehydkonzentration bestimmt. Unter Berücksichtigung der Probeneinwaage wird auf den freien Formaldehydgehalt von 100 g Probentrockenmasse zurückgerechnet. Es besteht ein Einfluss der Probenfeuchtigkeit, weshalb die Norm eine Korrektur des Feuchtegehaltes über eine Berechnungsformel und eine Normierung des Endprüfwertes auf eine Probenfeuchte von 6,5 % vorsieht. Finally, the perforator method after the European standard EN 120 mentions a procedure for Determination of free formaldehyde content in one Product describes. This is in a Extraction apparatus (the so-called perforator) means Toluene on reflux boils off the free formaldehyde the specimen (about 100 g) expelled and in water converted. After an extraction time of about two Hours is the aqueous formaldehyde solution of toluene separated and determines the formaldehyde concentration. Under Consideration of the sample weight is on the free Formaldehyde content of 100 g sample dry mass recalculated. There is an influence of Sample moisture, which is why the standard is a correction of Moisture content via a calculation formula and a Normalization of the final test value to a sample moisture of 6.5%.
Zur Bestimmung des Gehalts an möglicherweise krebserregenden organischen Bestandteilen erfolgt bei der sogenannten Gasanalysemethode nach einer Probenkonditionierung für 24 Stunden über CaCl2, dies entspricht einer relativen Luftfeuchtigkeit von 0 %, eine Analyse mittels eines Gaschromatographen mit Head-Space-Geber. Dazu wird eine zerkleinerte Probe für fünf Stunden bei einer Temperatur von 120°C im Head-Space-Geber temperiert und die mittels Gaschromatographen analysierten Werte der organischen Bestandteile in Mikrogramm Kohlenstoff pro Gramm Probe ausgegeben. Die qualitative Auswertung muss dabei ergeben, dass keine krebserregenden Stoffe nach der MAK-Werte-Liste detektiert werden.To determine the content of possibly carcinogenic organic constituents, the so-called gas analysis method is carried out after a sample conditioning for 24 hours via CaCl 2 , this corresponds to a relative humidity of 0%, an analysis by means of a gas chromatograph with head-space sensor. For this purpose, a comminuted sample is tempered for five hours at a temperature of 120 ° C in the head-space transmitter and the analyzed by gas chromatographs values of the organic constituents in micrograms of carbon per gram sample output. The qualitative evaluation must show that no carcinogenic substances are detected according to the list of MAK values.
Die MAK-Werte-Liste wird jährlich von der Senatskommission bei der Deutschen Forschungsgemeinschaft zur Prüfung gesundheitsschädlicher Inhaltsstoffe herausgegeben. Sie enthält Angaben über die maximal zulässige Konzentration bestimmter Stoffe am Arbeitsplatz, den sogenannten MAK-Wert. Es wird davon ausgegangen, dass bei Einhaltung der genannten Konzentrationen eine Gesundheitsgefährdung oder unangemessene Belästigung der Beschäftigten nicht zu erwarten ist. Die MAK-Werte-Liste enthält in Abschnitt III die Klassifizierung bestimmter Arbeitsstoffe nach deren bewiesener oder vermuteter Kanzerogenität.The MAK values list is published annually by the Senate Commission at the Deutsche Forschungsgemeinschaft for testing harmful ingredients edited. It contains information about the maximum permissible concentration of certain substances on Workplace, the so-called MAK value. It gets away assumed that in compliance with the said Concentrations a health hazard or Inappropriate harassment of employees not to is expected. The MAK values list is in section III the classification of certain agents after their proven or suspected carcinogenicity.
Eine weitere Prüfungsmethode ist die sogenannte
Geruchsprüfung. Dabei wird ein Prüfling von 150 cm2 nach
Anlieferung für zwei Stunden bei 80°C in einem dicht
verschlossenem, geruchsneutralen Prüfgefäß gelagert, das
ein Volumen von drei Litern umfasst. Das Prüfgefäß wird
anschließend auf 60°C abgekühlt. Mindestens drei
Probanden beurteilen das subjektive Geruchsempfinden der
im Prüfgefäß befindlichen Luft und bewerten dieses. Dabei
bedeuten die Noten 1 bis 3, dass der Geruch nicht bis
deutlich wahrnehmbar, aber nicht störend ist. Die Noten 4
bis 6 bedeuten, dass der Geruch störend bis unerträglich
ist.Another test method is the so-called odor test. In this case, a sample of 150 cm 2 after delivery for two hours at 80 ° C stored in a sealed, odorless test vessel, which comprises a volume of three liters. The test vessel is then cooled to 60 ° C. At least three test persons assess the subjective sense of smell of the air in the test vessel and evaluate it. The
Bei dem sogenannten Fogging-Test wird ein Prüfling mit einem Durchmesser von 80 mm in einem mit einer Aluminiumfolie verschlossenen Glasbehälter für 16 Stunden bei 100°C gelagert. Die austretenden, kondensierbaren Bestandteile schlagen sich auf der Aluminiumfolie nieder. Die dadurch erhaltene Massezunahme der Folie wird durch Rückwiegen bestimmt und in Milligramm angegeben.In the so-called fogging test is a candidate with a diameter of 80 mm in one with a Aluminum foil sealed glass container for 16 hours stored at 100 ° C. The exiting, condensable Components deposit on the aluminum foil. The resulting mass increase of the film is through Weighing determined and expressed in milligrams.
Bei der Verwendung von Holzwerkstoffplatten wie OSB- oder Spanplatten war bisher als einziger relevanter Emissionsparameter Formaldehyd anzusehen. Um die Emissionen so gering wie möglich zu halten, werden daher seit längerem formaldehydfreie Bindemittel, zum Beispiel auf Basis von Isocyanat, insbesondere polymeres Diphenylmethandiisocyanat (PMDI), eingesetzt. Damit konnten sowohl die erlaubten Emissionsgrenzwerte, bestimmt nach der Prüfkammermethode, unterschritten werden, als auch der Gehalt an freiem Formaldehyd, bestimmt nach der Perforatormethode, unter die gesetzlichen Grenzwerte von 8 mg/100 g trockene Probe gesenkt werden.When using wood-based panels such as OSB or Particleboard was so far the only relevant Emission parameters to view formaldehyde. To the Therefore, emissions will be kept as low as possible for a long time formaldehyde-free binder, for example based on isocyanate, in particular polymeric Diphenylmethane diisocyanate (PMDI), used. In order to Both the permitted emission limit values, determined by the test chamber method, below as well as the content of free formaldehyde, determined by the perforator method, under the legal limits of 8 mg / 100 g dry sample be lowered.
Aus der DE 44 31 316 C1 ist es beispielsweise auch bekannt, statt eines formaldehydfreien Bindemittels ein solches auf Formaldehydbasis zu verwenden, wobei in diesem Fall zur Verringerung der Formaldehydabgabe dem zu verpressenden Gemisch aus Holzspänen und Bindemittel zusätzlich Tannin zugegeben wird.For example, it is also known from DE 44 31 316 C1 known, instead of a formaldehyde-free binder to use such formaldehyde-based, wherein in In this case, to reduce the formaldehyde donation to pressing mixture of wood chips and binder in addition tannin is added.
Bisher ist man also davon ausgegangen, dass die Auswahl der Holzart für die Einhaltung der Formaldehydwerte nach der Perforatormethode, im Vergleich zur Auswahl des Bindemittels, keine Rolle spielt. Die Holzauswahl bestimmte sich ausschließlich nach regionalen Vorkommen einerseits und den geforderten mechanisch-technologischen Anforderungen an die OSB-Platte andererseits. Je nach den Möglichkeiten der Holzbeschaffung wurden die Holzarten Fichte und Kiefer insbesondere in Europa und die Holzart Pappel insbesondere in USA und Kanada verwendet.So far, one has therefore assumed that the selection type of wood for compliance with formaldehyde values the perforator method, compared to the selection of the Binder, does not matter. The wood selection was determined exclusively by regional occurrence on the one hand and the required mechanical-technological Requirements for the OSB board on the other hand. Depending on the Possibilities of wood procurement became the wood species Spruce and pine especially in Europe and the wood species Poplar used especially in USA and Canada.
Die Verwendung eines formaldehydfreien Bindemittels ist unabhängig von der Beeinflussung des Emissionsverhaltens auch zum Zwecke des Erreichens besonderer Festigkeitseigenschaften von Holzformkörpern bekannt, wie dies beispielsweise die DE 197 56 154 C1 beschreibt. Allerdings ist auch in diesem Anwendungsfall eines formaldehydfreien Bindemittels keine Beschränkung auf eine bestimmte Holzart vorgesehen. Im Gegenteil, bei Verwendung eines formaldehydfreien Bindemittels sind gemäß der DE 197 56 154 C1 alle denkbaren Weich- und Hartholzarten gleichermaßen geeignet.The use of a formaldehyde-free binder is independent of influencing the emission behavior also for the purpose of achieving special Strength properties of wood moldings known as this is described for example in DE 197 56 154 C1. However, also in this application case one formaldehyde-free binder is not limited to a specific type of wood provided. On the contrary, at Use of a formaldehyde-free binder are according to DE 197 56 154 C1 all conceivable soft and Hardwood species equally suitable.
Ausgehend von dem zuvor beschriebenen Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine OSB-Platte der eingangs genannten Art derart weiterzubilden, dass das Emissionsverhalten weiter verbessert wird, ohne dabei Einbußen bei den mechanisch-technologischen Eigenschaften der OSB-Platte in Kauf nehmen zu müssen. Based on the previously described prior art the present invention is based on the object an OSB board of the type mentioned in such a way to further educate that emission behavior continues is improved without sacrificing the mechanical and technological Properties of the OSB board in purchase to have to take.
Erfindungsgemäß ist die zuvor hergeleitete und
aufgezeigte Aufgabe durch eine OSB-Platte nach Anspruch 1
gelöst.According to the invention, the previously derived and
indicated task by an OSB board according to
Es hat sich überraschenderweise gezeigt, dass die Holzartenauswahl unter bestimmten Voraussetzungen, nämlich bei der Verwendung eines formaldehydfreien Bindemittels, sehr wohl einen signifikanten Einfluss auf die vorgenannten Emissionen hat. So wird durch die Kombination eines formaldehydfreien Bindemittels mit Strands aus Birken-, Erlen-, Linden-, Weiden- und/oder Pappelholz ein besonders gutes Emissionsverhalten erreicht.It has surprisingly been found that the Selection of wood species under certain conditions, namely when using a formaldehyde-free Bindemittels, very much a significant influence on has the aforementioned emissions. So is by the Combination of a formaldehyde-free binder with Beaches of birch, alder, linden, willow and / or Poplar wood a particularly good emission behavior reached.
Eine Verbesserung des Emissionsverhaltens wird also dadurch erreicht, dass schon die OSB-Platte selbst emissionsarm ist, und zwar allein durch die Wahl der verwendeten Holzarten und des verwendeten Bindemittels. Zusätzliche Maßnahmen zur Verbesserung des Emissionsverhaltens wie zum Beispiel spezielle Beschichtungen der Strands bzw. einzelner Lagen bzw. der gesamten Platte, die verhindern, dass bestimmte Komponenten, insbesondere Formaldehyd, in die Umgebung gelangen, oder Beimischungen, die entweichendes Formaldehyd binden oder verhindern, dass sich Formaldehyd abspaltet, sind auf diese Weise nicht notwendig.An improvement of emission behavior will be so achieved by that already the OSB plate itself low emissions, solely through the choice of used types of wood and the binder used. Additional measures to improve the Emission behavior such as special Coatings of the strands or individual layers or the entire plate, which prevent certain Components, especially formaldehyde, in the environment get, or admixtures, the escaping Formaldehyde bind or prevent formaldehyde splits off are not necessary in this way.
Dabei bedeutet im erfindungsgemäßen Sinne der Begriff emissionsarm, dass nach der Perforatormethode der Gehalt an Formaldehyd bezogen auf 100 g Trockenmasse weniger als 3,0 mg beträgt und insbesondere kleiner oder gleich 2,5 mg ist. Eine OSB-Platte ist auch dann emissionsarm im erfindungsgemäßen Sinne, wenn nach der Flaschenmethode der Gehalt an Formaldehyd bezogen auf 1 kg Trockenmasse weniger als 3,0 mg beträgt und insbesondere kleiner oder gleich 1 mg ist. Ferner ist eine Platte auch dann emissionsarm, wenn nach der Gasanalysemethode der Formaldehydgehalt der OSB-Platte bezogen auf 1 g Trockenmasse weniger als 90 µgC beträgt und insbesondere kleiner oder gleich 60 µgC ist. Schließlich ist eine OSB-Platte auch dann als emissionsarm zu bezeichnen, wenn die OSB-Platte nach dem Fogging-Test eine Masse an kondensierbaren Bestandteilen von weniger als 4,2 mg und insbesondere kleiner oder gleich 4 mg aufweist.In the context of the invention, the term means low emission, that according to the perforator method the content to formaldehyde based on 100 g dry matter less than Is 3.0 mg and in particular less than or equal to 2.5 mg is. An OSB board is also low in emissions according to the invention, if after the bottle method the content of formaldehyde based on 1 kg dry matter is less than 3.0 mg and in particular smaller or equal to 1 mg. Furthermore, a plate is then Low emissions, if according to the gas analysis method of Formaldehyde content of OSB board based on 1 g Dry matter is less than 90 μgC and in particular is less than or equal to 60 μgC. Finally, an OSB board even when low-emission, if the OSB board after the fogging test a mass condensable constituents less than 4.2 mg and especially less than or equal to 4 mg.
Es hat sich herausgestellt, dass bei einer mehrlagigen Platte, insbesondere bei einer 3-lagigen Platte bereits dann eine deutliche Verbesserung des Emissionsverhaltens auftritt, wenn lediglich eine der Lagen Strands aus Birken-, Erlen-, Linden-, Weiden- und/oder Pappelholz besteht, die mit einem formaldehydfreien Bindemittel versehen sind. Besonders vorteilhaft ist, wenn auch die übrigen Lagen Strands aufweisen, die mit einem formaldehydfreien Bindemittel versehen sind.It turned out that in a multilayered Plate, especially in a 3-layer plate already then a significant improvement in emissions behavior Occurs when just one of the strands of beach Birch, alder, linden, willow and / or poplar wood consists of a formaldehyde-free binder are provided. Is particularly advantageous, although the other strands of beach have that with a formaldehyde-free binders are provided.
Bei einer mehrlagigen, insbesondere 3-lagigen, OSB-Platte ist es ferner von Vorteil, wenn die Strands jeder Lage aus Birken-, Erlen-, Linden-, Weiden- und/oder Pappelholz bestehen.For a multi-layer, in particular 3-layer, OSB board It is also advantageous if the strands of each layer from birch, alder, linden, willow and / or poplar wood consist.
Gemäß einer weiteren bevorzugten Ausführungsform ist vorgesehen, dass das formaldehydfreie Bindemittel ein Bindemittel auf Isocyanat-Basis ist. Insbesondere kann als Bindemittel PMDI verwendet werden.According to another preferred embodiment provided that the formaldehyde-free binder Isocyanate-based binder. In particular, can be used as a binder PMDI.
Gemäß einer alternativen Ausführungsform kann auch vorgesehen sein, dass die Strands benachbarter Lagen aus jeweils unterschiedlichen Holzarten bestehen. So kann beispielsweise die Mittelschicht ausschließlich Strands aus Erle und die beiden Deckschichten ausschließlich Strands aus Birke enthalten.In an alternative embodiment, too be provided that the strands of adjacent layers of each consist of different types of wood. So can For example, the middle class excluding beaches made of alder and the two outer layers exclusively Strands of birch included.
Ferner wird die zuvor hergeleitete und aufgezeigte Aufgabe durch ein Bauteil zur Verwendung in einem Fahrzeug, insbesondere einem Pkw, Lkw, Bus, Schienenfahrzeug, Schiff oder Flugzeug, gelöst, welches unter anderem eine oder mehrere der zuvor beschriebenen OSB-Platten umfasst.Furthermore, the previously derived and indicated Task by a component for use in a Vehicle, especially a car, truck, bus, Rail vehicle, ship or plane, which is solved including one or more of those previously described OSB boards.
Die erfindungsgemäße Aufgabe wird auch gelöst durch ein Bauteil zur Verwendung in einem Möbelstück, insbesondere einem Schrank, umfassend mindestens eine OSB-Platte, wobei die Platte wie zuvor beschrieben ausgebildet ist.The object of the invention is also achieved by a Component for use in a piece of furniture, in particular a cabinet comprising at least one OSB panel, wherein the plate is formed as described above.
Die Aufgabe wird auch gelöst durch ein Bauteil zur Verwendung in einem Innenraum, insbesondere als Verkleidung einer Wand, umfassend mindestens eine OSB-Platte, wobei die Platte wie zuvor beschrieben ausgebildet ist.The problem is also solved by a component for Use in an interior, in particular as Cladding a wall comprising at least one OSB board, the plate being as previously described is trained.
Schließlich wird die erfindungsgemäße Aufgabe auch durch ein Möbelstück, insbesondere einen Schrank, mit mindestens einer OSB-Platte gelöst, wobei die Platte wie zuvor beschrieben ausgebildet ist.Finally, the object of the invention is also by a piece of furniture, in particular a cabinet, with solved at least one OSB plate, with the plate like previously described.
In der Zeichnung zeigt die einzige Figur den Schichtaufbau eines Ausführungsbeispiels einer erfindungsgemäßen emissionsarmen OSB-Platte.In the drawing, the only figure shows the Layer structure of an embodiment of a low-emission OSB board according to the invention.
Aus entrindeten Kieferstämmen wurden getrocknete Strands für die beiden Deckschichten und die Mittelschicht hergestellt. Die Strands für die Deckschichten wurden mit handelsüblichem Bindemittel auf Basis von Melamin-Harnstoff-Phenol-Formaldehyd (MUPF) versehen und die Strands für die Mittelschicht mit formaldehydfreiem PMDI. Anschließend wurde aus den drei Schichten eine 3-lagige OSB-Platte hergestellt, wobei die Strands in den einzelnen Lagen in derselben Weise orientiert waren, wie die Strands des zuvor beschriebenen erfindungsgemäßen Ausführungsbeispiels. Die Masseanteile von Deckschicht zu Mittelschicht waren ca. 1:1.Stranded pine trunks became dried strands for the two outer layers and the middle layer produced. The strands for the cover layers were with commercial binder based on melamine-urea-phenol-formaldehyde (MUPF) and the Strands for the middle layer with formaldehyde-free PMDI. Subsequently, the three layers became a 3-layered one OSB board produced, with the beaches in the individual layers were oriented in the same way as the strands of the invention described above Embodiment. The mass fractions of topcoat too Middle class were about 1: 1.
Der so erhaltene Formling wurde in einer Contiroll-Presse zu einer festen Endlosplatte durch Einwirkung von Druck und Temperatur verpresst, anschließend in Formate aufgetrennt und nach Kühlung im Sternwender in Stapel gelagert. Die Prüfergebnisse sind in Tabelle 1 angeführt.The resulting molded product was in a Contiroll press to a solid endless plate by the action of pressure and temperature pressed, then in formats separated and after cooling in Sternwender in pile stored. The test results are shown in Table 1.
Eine Platte wurde analog zu Beispiel 1 und zum erfindungsgemäßen Ausführungsbeispiel gefertigt. Anstelle der Holzart Kiefer wurde die Holzart Fichte verwendet und statt MUPF als Bindemittel wurde ausschließlich PMDI eingesetzt. Die Prüfergebnisse sind in Tabelle 1 angeführt.A plate was analogous to Example 1 and the manufactured according to the embodiment. Instead of the wood species spruce was used and the wood species spruce instead of MUPF as a binder was only PMDI used. The test results are in Table 1 cited.
Erfindungsgemäß weist das in der einzigen Figur
dargestellte Ausführungsbeispiel einer OSB-Platte 1 drei
Lagen 2, 3 und 4 von mit Bindemittel versehenen und
verpressten Strands auf. Jede Lage 2, 3 und 4 besteht
dabei aus einem Gemisch aus 50 % Birkenholzstrands und 50
% Erlenholzstrands. Als Bindemittel wird PMDI verwendet,
welches formaldehydfrei ist.According to the invention in the single figure
illustrated embodiment of an
Die zuvor beschriebene OSB-Platte 1 weist ein besonders
gutes Emissionsverhalten für Formaldehyd, organische
Bestandteile, Geruch und kondensierbare Bestandteile auf,
wie ein Vergleich mit den vorangehenden Beispielen aus
dem Stand der Technik zeigt. Die Prüfergebnisse sind in
Tabelle 1 ausgeführt.The
Eine Platte wurde analog zum Ausführungsbeispiel 1
hergestellt. Allerdings wurden anstelle der Holzarten
Birke und Erle die Holzarten Weide, Pappel und Linde zu
gleichen Teilen verwendet. Die Prüfergebnisse sind in
Tabelle 1 angeführt.A plate was analogous to
Eine Platte wurde analog zum Ausführungsbeispiel 1
hergestellt. Als Holzarten kamen für die äußeren
Decklagen und die Mittellage verschiedene Hölzer zum
Einsatz. Das Gewichtsverhältnis Mittellage:Decklage ist
1:1. Das Verhältnis der Strands in den Decklagen
Erle:Birke ist 1:1. Das Verhältnis der Strands in der
Mittelage Kiefer:Fichte ist ebenfalls 1:1. Die
Prüfergebnisse sind in Tabelle 1 dargestellt.A plate was analogous to
Eine Platte wurde analog zum Ausführungsbeispiel 3
hergestellt. Für die einzelnen Lagen der Platte wurden
verschiedene Holzarten eingesetzt und zwar die Holzart
Birke für die Decklagen und für die Mittellage ein
Gemisch Erle:Weide:Linde im Verhältnis 4:2:1. Die
Prüfergebnisse sind in Tabelle 1 dargestellt.A plate was analogous to
Im Gegensatz zu den vorigen Ausführungsbeispielen wurde eine einlagige Platte hergestellt. Die Strands dazu wurden ohne eine bestimmte Orientierung gestreut, eine sogenannte "Random"-Streuung. Produktionsbedingt ergibt sich aber eine etwas bevorzugte Ausrichtung in Plattenproduktionsrichtung. Die Strands bestehen aus einem Gemisch aus Birke und Erle. Die Prüfergebnisse sind in Tabelle 1 dargestellt.In contrast to the previous embodiments was made a single-layered plate. The beaches too were scattered without a specific orientation, one so-called "random" scattering. Production-related results but a somewhat preferred orientation in Plate production direction. The beaches are made up a mixture of birch and alder. The test results are shown in Table 1.
Die Platten wurden anlag zum Ausführungsbeispiel 1
hergestellt, wobei die Dicke der Platten aber variiert
wurde (25,1 mm bzw. 8,0 mm). Die Prüfergebnisse sind in
Tabelle 1 dargestellt.The plates were applied to the
Die in Tabelle 1 angegebenen Werte für den Formaldehydgehalt, den Gehalt an organischen Bestandteilen, den Geruch und den Gehalt an kondensierbaren Bestandteilen sind Mittelwerte, die aus je zehn Einzelwerten berechnet wurden.The values given in Table 1 for the Formaldehyde content, the content of organic Ingredients, smell and content condensable constituents are averages derived from ten individual values were calculated.
Wie Tabelle 1 zeigt, konnte erst mit der Holzartenkombination Erle und Birke das Emissionsverhalten auf ein niedriges Niveau gebracht werden. Die Dicke, Dichte und Anzahl der Strandlagen und die Ausrichtung der Strands üben keinen Einfluss auf das Emissionsverhalten aus. As Table 1 shows, emission behavior could only be reduced to a low level with the combination of alder and birch. The thickness, density and number of beach locations and the orientation of the beaches have no influence on the emission behavior.
Claims (19)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL04025519T PL1527859T3 (en) | 2003-10-28 | 2004-10-27 | Osb-board |
SI200430182T SI1527859T1 (en) | 2003-10-28 | 2004-10-27 | Osb-board |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20316621U DE20316621U1 (en) | 2003-10-28 | 2003-10-28 | Low-emission OSB board |
DE20316621U | 2003-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1527859A1 true EP1527859A1 (en) | 2005-05-04 |
EP1527859B1 EP1527859B1 (en) | 2006-12-13 |
Family
ID=31725131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04025519A Revoked EP1527859B1 (en) | 2003-10-28 | 2004-10-27 | Osb-board |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1527859B1 (en) |
AT (1) | ATE347982T1 (en) |
DE (2) | DE20316621U1 (en) |
ES (1) | ES2278260T3 (en) |
PL (1) | PL1527859T3 (en) |
SI (1) | SI1527859T1 (en) |
WO (1) | WO2005042218A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4434876A1 (en) * | 1994-09-29 | 1996-04-04 | Dieffenbacher Gmbh Maschf | Method for continuous manufacture of multilayer board |
DE4431316C1 (en) * | 1994-09-02 | 1996-05-02 | Schlingmann Gmbh & Co | Process for reducing the release of formaldehyde from chipboard or fiberboard |
US5525394A (en) * | 1990-04-03 | 1996-06-11 | Masonite Corporation | Oriented strand board-fiberboard composite structure and method of making the same |
EP0921054A1 (en) * | 1997-12-04 | 1999-06-09 | SORTIMO INTERNATIONAL AUSRÜSTUNGSSYSTEME FÜR SERVICEFAHRZEUGE GmbH | Interior equipment panel for vehicles and method for manufacturing the same |
DE19756154C1 (en) * | 1997-12-17 | 1999-10-28 | Henkel Kgaa | Moldings of wood particles and PU binders, their preparation and use |
DE20014859U1 (en) * | 2000-08-28 | 2000-11-30 | Enno Roggemann Gmbh & Co Kg | Multilayer board (OSB) |
EP1267010A1 (en) * | 2001-06-12 | 2002-12-18 | Fritz Egger GmbH & Co | Large format OSB-panel with improved properties for the construction industry |
-
2003
- 2003-10-28 DE DE20316621U patent/DE20316621U1/en not_active Ceased
-
2004
- 2004-10-27 DE DE502004002282T patent/DE502004002282D1/en active Active
- 2004-10-27 PL PL04025519T patent/PL1527859T3/en unknown
- 2004-10-27 WO PCT/EP2004/012133 patent/WO2005042218A1/en active Application Filing
- 2004-10-27 AT AT04025519T patent/ATE347982T1/en not_active IP Right Cessation
- 2004-10-27 EP EP04025519A patent/EP1527859B1/en not_active Revoked
- 2004-10-27 SI SI200430182T patent/SI1527859T1/en unknown
- 2004-10-27 ES ES04025519T patent/ES2278260T3/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5525394A (en) * | 1990-04-03 | 1996-06-11 | Masonite Corporation | Oriented strand board-fiberboard composite structure and method of making the same |
DE4431316C1 (en) * | 1994-09-02 | 1996-05-02 | Schlingmann Gmbh & Co | Process for reducing the release of formaldehyde from chipboard or fiberboard |
DE4434876A1 (en) * | 1994-09-29 | 1996-04-04 | Dieffenbacher Gmbh Maschf | Method for continuous manufacture of multilayer board |
EP0921054A1 (en) * | 1997-12-04 | 1999-06-09 | SORTIMO INTERNATIONAL AUSRÜSTUNGSSYSTEME FÜR SERVICEFAHRZEUGE GmbH | Interior equipment panel for vehicles and method for manufacturing the same |
DE19756154C1 (en) * | 1997-12-17 | 1999-10-28 | Henkel Kgaa | Moldings of wood particles and PU binders, their preparation and use |
DE20014859U1 (en) * | 2000-08-28 | 2000-11-30 | Enno Roggemann Gmbh & Co Kg | Multilayer board (OSB) |
EP1267010A1 (en) * | 2001-06-12 | 2002-12-18 | Fritz Egger GmbH & Co | Large format OSB-panel with improved properties for the construction industry |
Also Published As
Publication number | Publication date |
---|---|
ATE347982T1 (en) | 2007-01-15 |
ES2278260T3 (en) | 2007-08-01 |
DE20316621U1 (en) | 2004-02-12 |
DE502004002282D1 (en) | 2007-01-25 |
WO2005042218A1 (en) | 2005-05-12 |
EP1527859B1 (en) | 2006-12-13 |
SI1527859T1 (en) | 2007-04-30 |
PL1527859T3 (en) | 2007-05-31 |
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