Extraction and characterization of bark tannins from domestic softwood species for bonding applications in wood-based materials

The aim of this project is the development of a tailor-made extraction process for bark tannins from domestic softwood species for adhesive applications. Bark is missing a profitable chemical valorisation so far.

Fiche signalétique

  • Département HESB | Architecture, bois et génie civil
  • Pôle de recherche Matériaux et la technologie du bois
  • Champ de recherche Chimie du bois et émissions des matériaux
  • Organisme de financement FNS
    FNS
  • Durée (prévue) 01.01.2012 - 31.12.2014
  • Responsable du projet Frédéric Pichelin
  • Direction du projet Ingo Mayer
  • Équipe du projet Ingo Mayer
    Sauro Bianchi
  • Partenaires - établissements de recherche, y c. BFH HESB | Architecture, bois et génie civil
    Universität Liechtenstein, Institut für Entrepreneurship
    Zürcher Hochschule für Angewandte Wissenschaften, Institut für Chemie und Biologische Chem
  • Mots-clés bark, tannin, domestic softwoods, extraction, green adhesive, chemical characterization

Contexte initial

An extraction process will be developed based on parameter studies for extraction of condensed tannins from domestic softwood barks under cost-effective conditions. Bark is missing a profitable valorisation so far. In addition, formaldehyde-free adhesives are devolped based on the extracted tannins. The tannin-based adhesive systems are applied for board production an the physcial and mechanical properties of the boards are evaluated. Economical apsects are investigated.

But

The aim of this project is the development of a tailor-made extraction process for bark tannins from domestic softwood species focussing on the use of the tannins as adhesives in wood-based material production.

Compétences clés

Extraction procedures, wood chemistry, analytical characterization, adhesive formulation, wood-based materials production