EP1284845B1 - Procede pour produire un bain de liant - Google Patents

Procede pour produire un bain de liant Download PDF

Info

Publication number
EP1284845B1
EP1284845B1 EP01913696A EP01913696A EP1284845B1 EP 1284845 B1 EP1284845 B1 EP 1284845B1 EP 01913696 A EP01913696 A EP 01913696A EP 01913696 A EP01913696 A EP 01913696A EP 1284845 B1 EP1284845 B1 EP 1284845B1
Authority
EP
European Patent Office
Prior art keywords
binder
wood
process according
tannin
liquid
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.)
Expired - Lifetime
Application number
EP01913696A
Other languages
German (de)
English (en)
Other versions
EP1284845A1 (fr
Inventor
Edmone Roffael
Brigitte Dix
Dieter Greubel
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP1284845A1 publication Critical patent/EP1284845A1/fr
Application granted granted Critical
Publication of EP1284845B1 publication Critical patent/EP1284845B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder

Definitions

  • the invention relates to a method for producing a fleet of binders for wood-to-wood bindings made from powdered binders or Binder components that are brought into solution in a liquid.
  • Wood materials such as chipboard and fiberboard are manufactured by gluing wood chips or fibers with a binder and if necessary, then dries, sprinkles into chip or fiber mats and then hot presses.
  • aminoplast resins such as urea and urea-melamine-formaldehyde resins are generally Phenol formaldehyde resins and adhesives based on polymeric diisocyanates used.
  • Tannin formaldehyde resins and starches in unmodified and modified Form used as a binder.
  • Other binders based Renewable raw materials are lignins, proteins and carbohydrates that mainly on its own or in combination with other binders Special plate types are used.
  • the binders are mainly in the wood materials as aqueous Glue liquor used in the consistency range between 40-60%. Powdery In this consistency range, binders are either from Binder manufacturers or in the chip or fiberboard factories as processed aqueous solution.
  • the binder based on renewable Raw materials are mainly used as powder in the chip and Delivered fiberboard plants, where they are brought into solution with water and brought to the desired consistency. When producing the Binder liquor can be added and the pH value the desired level can be set.
  • the invention has for its object a binder liquor manufacture in wood-to-wood bonds, especially in chipboard and fiberboard water absorption and thickness swelling compared to the products made with conventional binder liquors.
  • the "wastewater” primarily includes the drying of Wood chips and wood fibers accumulating condensates, which at the Fibreboard production using the wet process and waste water that which arises in the manufacture of fiberboard by the dry process To understand squeezing water.
  • this waste water can be recycled can be used directly for the preparation of binder liquors, where the use of (pure) water is completely avoided can.
  • Low swellings and thicknesses are further advantages Water absorption and without affecting the bending and The transverse tensile strength of the binder liquor according to the invention manufactured plates.
  • Tannin, starch, lignin, protein and Use mixtures of these It is useful if that too using tannin by extracting bark or wood with Waste water from the wood-based panel industry is obtained.
  • tannin was stirred into the condensate of a chip drying plant and adjusted to a consistency of 45%.
  • the same tannin was dissolved in distilled water and also adjusted to a consistency of 45%.
  • the binder content was 14% (solid / dry fiber).
  • formaldehyde as a curing accelerator (10.5% solid / solid tannin) medium-density fiberboard was produced with the two tannin solutions under the same gluing and pressing conditions. The pressing time was 24 seconds per millimeter of plate thickness. After gluing and drying, the moisture of the fibers was between 15.2% and 15.5%. The physical and technological properties were determined on the plates produced in this way.

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)
  • Peptides Or Proteins (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Saccharide Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Compounds Of Unknown Constitution (AREA)

Claims (7)

  1. Procédé de production d'un liant pour assemblages bois sur bois à partir de liants pulvérulents ou de constituants de liants qui sont mis en solution dans un liquide,
    caractérisé en ce qu'
    on utilise comme liquide de l'eau résiduaire qui se forme comme condensat lors du séchage de copeaux de bois ou de fibres de bois ou comme eau résiduaire dans la production de panneaux de fibres par le procédé humide, ou encore comme eau d'essorage dans la production de panneaux de fibres par le procédé à sec.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    comme liant, on utilise du tanin.
  3. Procédé selon la revendication 2,
    caractérisé en ce que
    le tanin à utiliser est obtenu par extraction d'écorces ou de bois avec des eaux résiduaires de l'industrie des matériaux dérivés du bois.
  4. Procédé selon la revendication 1,
    caractérisé en ce que
    comme liant, on utilise de l'amidon.
  5. Procédé selon la revendication 1,
    caractérisé en ce que
    comme liant, on utilise de la lignine.
  6. Procédé selon la revendication 1,
    caractérisé en ce que
    comme liant, on utilise de la protéine.
  7. Procédé selon la revendication 1,
    caractérisé en ce que
    comme liant, on utilise des mélanges de tanin, amidon, lignine et protéine.
EP01913696A 2000-05-05 2001-02-20 Procede pour produire un bain de liant Expired - Lifetime EP1284845B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10021952A DE10021952A1 (de) 2000-05-05 2000-05-05 Verfahren zur Herstellung einer Bindemittelflotte
DE10021952 2000-05-05
PCT/DE2001/000650 WO2001085411A1 (fr) 2000-05-05 2001-02-20 Procede pour produire un bain de liant

Publications (2)

Publication Number Publication Date
EP1284845A1 EP1284845A1 (fr) 2003-02-26
EP1284845B1 true EP1284845B1 (fr) 2003-08-27

Family

ID=7640916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01913696A Expired - Lifetime EP1284845B1 (fr) 2000-05-05 2001-02-20 Procede pour produire un bain de liant

Country Status (5)

Country Link
EP (1) EP1284845B1 (fr)
AT (1) ATE248049T1 (fr)
DE (2) DE10021952A1 (fr)
PT (1) PT1284845E (fr)
WO (1) WO2001085411A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10260966A1 (de) * 2002-12-20 2004-07-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung einer Bindemittelflotte sowie deren Verwendung
DE102009042595A1 (de) * 2009-09-24 2011-03-31 Braun, Peter Marco Verfahren zur Herstellung von Formteilen
CN105082301B (zh) * 2015-05-05 2017-12-29 孙建民 一种仿生原木制品的材料组合物工艺配方

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD115453A5 (fr) * 1974-11-26 1975-10-05
AT378166B (de) * 1979-03-23 1985-06-25 Uniprojekt Projektova Inzenyrs Verfahren zur verhinderung der kondensation von klebstoffmischungen
SU814775A1 (ru) * 1979-10-08 1981-03-23 Белорусский Технологический Институтим.C.M.Кирова Состав дл изготовлени древесно- ВОлОКНиСТыХ плиТ
US4433126A (en) * 1981-12-28 1984-02-21 Masonite Corporation Modified phenol-formaldehyde resin and the production thereof
DD226276A1 (de) * 1984-07-24 1985-08-21 Sprela Werke Spremberg Veb Verfahren zur rueckgewinnung von rohstoffen aus abwaessern
DE3914146A1 (de) * 1989-04-28 1990-10-31 Baehre & Greten Verfahren zur beseitigung von im bereich der leimaufbereitung und leimdosierung bei reinigungsvorgaengen anfallendem abwasser im zuge der herstellung von holzspanplatten oder dergleichen
US5000788A (en) * 1990-04-12 1991-03-19 Sprout-Bauer, Inc. Method for preparing starch based corrugating adhesives using waste wash water
DE4030718A1 (de) * 1990-09-28 1992-04-02 Univ Dresden Tech Verfahren zur herstellung eines bindemittels auf ligninbasis
FR2715411B1 (fr) * 1994-01-24 1996-04-26 Celta Matériau compact résistant à l'eau et repulpable, à base de matériaux cellulosiques broyés, et son procédé de fabrication.

Also Published As

Publication number Publication date
DE50100561D1 (de) 2003-10-02
ATE248049T1 (de) 2003-09-15
WO2001085411A1 (fr) 2001-11-15
EP1284845A1 (fr) 2003-02-26
PT1284845E (pt) 2003-12-31
DE10021952A1 (de) 2001-11-22

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