Preparation and Properties of a Novel Type of Tannin-based Wood Adhesive - Université de Lorraine Access content directly
Journal Articles The Journal of Adhesion Year : 2020

Preparation and Properties of a Novel Type of Tannin-based Wood Adhesive

Abstract

A novel biomass-based wood adhesive was prepared with commercial Mimosa tannin extract and glycerol diglycidyl ether (GDE) by convenient mechanical mixing. GDE served as the crosslinker of the tannin without any aldehyde addition yielding hardened three-dimensional networks. Different weight ratios of tannin/GDE were investigated by a number of techniques to determine their influence on final properties. The results showed that a non-hydrolysable ester bonds can be formed between the epoxy groups of GDE and hydroxyl groups of tannin, this being the critical factor for the good water resistance obtained by the wood adhesives prepared. Moreover, the dry and wet shear strength exhibit positive correlation with the proportion of GDE added. Even at a relatively small proportion of GDE (33% of the weight of dry tannin), the dry and 24 h cold water shear strengths of the bonded plywood satisfied the requirements of relevant standard (GB/T 9846-2015, ≥0.7 MPa). The thermal stability of the tannin-based wood adhesive so prepared progressively improved with the increasing proportion of GDE.
Fichier principal
Vignette du fichier
Main Document.pdf (556.33 Ko) Télécharger le fichier
SUPPLEMENTARY MATERIAL.pdf (69.27 Ko) Télécharger le fichier
Tables and Figures.pdf (1.25 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03158407 , version 1 (03-03-2021)

Identifiers

Cite

Xinyi Chen, Antonio Pizzi, Emmanuel Fredon, Christine Gerardin, Jinxing Li, et al.. Preparation and Properties of a Novel Type of Tannin-based Wood Adhesive. The Journal of Adhesion, 2020, ⟨10.1080/00218464.2020.1863215⟩. ⟨hal-03158407⟩
53 View
536 Download

Altmetric

Share

Gmail Facebook X LinkedIn More