Abstract
Phenol-resorcinol-furfural, resorcinol-furfural and resorcinol-phenol-furfural cold-setting resins of performance comparable to that of equivalent formaldehyde-based cold-setting resins have been prepared. The phenol-resorcinol-furfural resins were also proved to be suitable for the preparation of „honeymoon” fast-set adhesives with performance comparable to that of phenol-resorcinol-formaldehyde resins for the same type of application. Tannin-resorcinol-furfural cold-setting resins of comparable performance have also been prepared. The best phenol-resorcinol-furfural adhesive resin appears to have cost comparable to that of commercial phenol-resorcinol-formaldehyde formulations and a few technical advantages, the main one of which is the lower volumetric shrinkage of the resin on curing.
Zusammenfassung
Es wurden kaltabbindende Phenol-Resorcin-Furfural-, Furfural- und Resorcin-Phenol-Furfural Harze hergestellt, die in ihrem Verhalten mit den entsprechenden auf der Basis von Formaldehyd kalt-abbindenden Harzen vergleichbar sind. Die Phenol-Resorcin-Furfural Harze sind auch für die Herstellung von schnellabbindenden “Honeymoon” Klebstoffen geeignet und verhalten sich vergleichbar den Phenol-Resorcin-Formaldehyd Harzen im gleichen Anwendungsgebiet. Es wurden auch kaltabbindende Tannin-Resorcin-Furfural Harze mit vergleichbarem Verhalten hergestellt. Es scheint, daß das beste Phenol-Resorcin-Furfural-Klebstoffharz ähnlich viel kostet wie die handelsüblichen Phenol-Resorcin-Formaldehyd-Formulierungen und einige technische Vorteile besitzt, hauptsächlich ein geringeres volumetrisches Schrumpfen des Harzes beim Härten.
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References
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Dedicated to the 75th birthday of Prof. Wilhelm Sandermann
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Pizzi, A., Orovan, E. & Cameron, F.A. The development of weather- and boil-proof phenol-resorcinol-furfural cold-setting adhesives. Holz als Roh-und Werkstoff 42, 467–472 (1984). https://doi.org/10.1007/BF02615403
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DOI: https://doi.org/10.1007/BF02615403