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Holz als Roh- und Werkstoff

, 65:65 | Cite as

Lignin-based wood panel adhesives without formaldehyde

  • Nour-eddine El Mansouri
  • Antonio PizziEmail author
  • Joan Salvadó
ORIGINALARBEITEN ORIGINALS

Abstract

Lignin-based wood adhesives prepared without formaldehyde substituted by non-volatile non-toxic aldehyde, namely glyoxal, were prepared and tested for application to wood panels such as particleboard. The adhesives yielded good IB strength results of the panels, enough to comfortably pass relevant international standard specifications for exterior-grade panels. The adhesives also showed sufficient reactivity to yield panels in press times comparable to those of formaldehyde-based commercial adhesives.

Keywords

Lignin Glyoxal Internal Bond Triacetin Wood Panel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Formaldehydfreie Holzklebstoffe auf Ligninbasis

Zusammenfassung

Holzklebstoffe auf Ligninbasis wurden auf ihre Eignung zur Herstellung von Holzplatten, wie zum Beispiel Spanplatten, untersucht. Dabei wurde anstelle von Formaldehyd das nicht flüchtige, ungiftige Aldehyd Glyoxal verwendet. Die Klebstoffe erzielten gute Ergebnisse hinsichtlich der Querzugfestigkeit der Platten. Internationale Normanforderungen für Platten zur Verwendung im Feuchtbereich wurden problemlos eingehalten. Die Reaktionsfähigkeit der Klebstoffe reichte aus, um Platten mit Presszeiten vergleichbar mit denjenigen kommerzieller Klebstoffe auf Formaldehydbasis herzustellen.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Nour-eddine El Mansouri
    • 1
  • Antonio Pizzi
    • 2
    Email author
  • Joan Salvadó
    • 1
  1. 1.Dept. of Chemical EngineeringUniversity Rovira y VirgiliiTarragonaSpain
  2. 2.ENSTIB-LERMABUniversity of Nancy 1EpinalFrance

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