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

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• 作者：F. Santiago-Medina^a ; G. Foyer^b ; A. Pizzi^a ; ^c ; ^{antonio.pizzi@univ-lorraine.fr" class="auth_mail" title="E-mail the corresponding author} ; S. Caillol^b ; L. Delmotte^d
• 关键词：Particleboard bonding ; Ecofriendly adhesives ; Tannin
• 刊名：International Journal of Adhesion and Adhesives
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：70
• 期：Complete
• 页码：239-248
• 全文大小：2333 K

文摘

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.