Formaldehyde free tannin-based adhesive with epoxy as hardener for plywood

IF 1.2 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Maderas-ciencia Y Tecnologia Pub Date : 2022-05-01 DOI:10.4067/s0718-221x2022000100433

Bowen Liu, Yunxia Zhou, H. Essawy, Qian Chen, Jiankun Liang, Xiaojian Zhou, Jun Zhang, G. Du

引用次数: 1

Abstract

A renewable tannin-based resin adhesive with enhanced bonding strength, good water resistance and long storage life has been prepared based on tannin, furfural and furfuryl alcohol coming from forest and agricultural products. Fourier transform infrared spectroscopy (FT-IR), Electrospray ionization mass spectroscopy (ESI-MS) and Differential scanning calorimetry (DSC) indicated that furfuryl alcohol and furfural can react with tannin under acidic conditions, with the involvement of -CH 2 -O- groups in the cross-linking of tannin-furfuryl alcohol-furfural resin (TFF) adhesive. The gel time of TFF was longer than that of tannin-fur-fural resin (TF), while the shear strength of TFF-bonded plywood suggested that the cured TFF adhesive acquired a performance superior to that of tannin

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以环氧树脂为胶合板硬化剂的无甲醛单宁基胶粘剂

以林产和农产品中的单宁、糠醛和糠醇为原料，制备了一种粘接强度高、耐水性好、贮存寿命长的可再生单宁基树脂胶粘剂。傅里叶变换红外光谱(FT-IR)、电喷雾电离质谱(ESI-MS)和差示扫描量热法(DSC)表明，在酸性条件下，糠醇和糠醛与单宁发生反应，- ch 2 - o -基团参与了单宁-糠醇-糠醛树脂(TFF)胶粘剂的交联反应。TFF的凝胶时间比单宁-糠醛树脂(TF)的凝胶时间长，而TFF与胶合板的剪切强度表明，固化后的TFF胶粘剂的性能优于单宁树脂

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Maderas-ciencia Y Tecnologia 工程技术-材料科学：纸与木材

CiteScore

2.60

自引率

13.30%

发文量

审稿时长

>12 weeks

期刊介绍： Maderas-Cienc Tecnol publishes inedits and original research articles in Spanish and English. The contributions for their publication should be unpublished and the journal is reserved all the rights of reproduction of the content of the same ones. All the articles are subjected to evaluation to the Publishing Committee or external consultants. At least two reviewers under double blind system. Previous acceptance of the Publishing Committee, summaries of thesis of Magíster and Doctorate are also published, technical opinions, revision of books and reports of congresses, related with the Science and the Technology of the Wood. The journal have not articles processing and submission charges.