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European Journal of Wood and Wood Products
Erschienen in: European Journal of Wood and Wood Products 4/2010

01.11.2010 | Originals Originalarbeiten

Characterization of a formaldehyde-free cornstarch-tannin wood adhesive for interior plywood

verfasst von: Amine Moubarik, Ahmed Allal, Antonio Pizzi, Fatima Charrier, Bertrand Charrier

Erschienen in: European Journal of Wood and Wood Products | Ausgabe 4/2010

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Abstract

This study investigated the physical properties (rheological and thermogravimetric analysis) of cornstarch-tannin adhesives and the mechanical properties (dry tensile strength and 3-point bending strength) of plywood made using cornstarch-tannin adhesives. This adhesive was evaluated for its utility in interior plywood manufacture. The optimum cure temperature and cure time of cornstarch-tannin adhesives were 170°C and 4 min, respectively. Plywood bonded with formaldehyde-free cornstarch-tannin adhesive exhibited excellent mechanical properties comparable to commercially available phenol-formaldehyde plywood adhesives. It was found that cornstarch-tannin panels which do not contain formaldehyde and with an emission equal to that of heated but unbound wood can be obtained by the use of hexamethylenetetramine (hexamine) as hardener.
The work has indicated that an environmentally friendly wood adhesive can be prepared from a natural renewable resource (cornstarch and wattle tannin) for bonding interior-type plywood.
Vorheriger Artikel Mechanical characterisation of adhesives in particle boards by means of nanoindentation
Nächster Artikel Colour stabilisation of wood composites using polyethylene glycol and melamine resin

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Metadaten
Titel
Characterization of a formaldehyde-free cornstarch-tannin wood adhesive for interior plywood
verfasst von
Amine Moubarik
Ahmed Allal
Antonio Pizzi
Fatima Charrier
Bertrand Charrier
Publikationsdatum
01.11.2010
Verlag
Springer-Verlag
Erschienen in
European Journal of Wood and Wood Products / Ausgabe 4/2010
Print ISSN: 0018-3768
Elektronische ISSN: 1436-736X
DOI
https://doi.org/10.1007/s00107-009-0379-0

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