Lignin-derived non-toxic aldehydes for ecofriendly tannin adhesives for wood panels

Lignin-derived non-toxic aldehydes for ecofriendly tannin adhesives for wood panels An adhesive based on the reaction of a very fast reacting procyanidin-type condensed tannin, namely purified pine bark tannin, and food-grade non-toxic slow-reacting aldehydes derived from lignin was shown to satisfy well the relevant standards for bonding wood particleboard. Vanillin and a dialdehyde derivative of vanillin were the aldehydes used. The oligomers obtained and their distribution have been determined by matrix assisted laser ionization desorption time-of-flight (MALDI-TOF) mass spectrometry for the reactions with catechin used as a model compound and with the pine tannin itself, and by cross polarization magic angle spinning 13C nuclear magnetic resonance (CP MAS 13C NMR) for the reaction with pine tannin. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Adhesion and Adhesives Elsevier

Lignin-derived non-toxic aldehydes for ecofriendly tannin adhesives for wood panels

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0143-7496
D.O.I.
10.1016/j.ijadhadh.2016.07.002
Publisher site
See Article on Publisher Site

Abstract

An adhesive based on the reaction of a very fast reacting procyanidin-type condensed tannin, namely purified pine bark tannin, and food-grade non-toxic slow-reacting aldehydes derived from lignin was shown to satisfy well the relevant standards for bonding wood particleboard. Vanillin and a dialdehyde derivative of vanillin were the aldehydes used. The oligomers obtained and their distribution have been determined by matrix assisted laser ionization desorption time-of-flight (MALDI-TOF) mass spectrometry for the reactions with catechin used as a model compound and with the pine tannin itself, and by cross polarization magic angle spinning 13C nuclear magnetic resonance (CP MAS 13C NMR) for the reaction with pine tannin.

Journal

International Journal of Adhesion and AdhesivesElsevier

Published: Oct 1, 2016

References

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