F.-J. Santiago-Medina1, A. Pizzi1,2,*, S. Abdalla2
Journal of Renewable Materials, Vol.5, No.5, pp. 435-447, 2017, DOI:10.7569/JRM.2017.634166
Abstract An adhesive based on the reaction of a very fast reacting procyanidin-type condensed tannin, namely
purified pine bark tannin, with a biosourced nontoxic and nonvolatile aldehyde derived from the pulp
and paper industry, namely hydroxymethylfurfural (HMF), was shown to almost satisfy the relevant
standards for bonding wood particleboard. The conditions of pH used are determinant for the result.
The oligomers obtained by the reaction and their distribution have been determined by matrix-assisted
laser ionization desorption time-of-flight (MALDI-TOF) mass spectrometry. Of the two reactive groups of
hydroxymethylfurfural capable of reacting, the furanic aldehyde one and the furanic hydroxymethyl alcohol
group, only… More >
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