Accessible Unlicensed Requires Authentication Published by De Gruyter July 27, 2020

The furfuryl alcohol (FA) resin distribution in the furfurylated bamboo

Wanju Li, Minghui Liu, Hankun Wang, Hongbo Zhai and Yan Yu
From the journal Holzforschung

Abstract

It is well known the properties of resin impregnation wood is significantly influenced by the specific distribution pattern of resin in the modified wood. In this work, bamboo was furfurylated with an improved process. In addition to testing and evaluating its main physical, mechanical and durable properties, it was explored how the furfuryl alcohol (FA) resin is distributed in the furfurylated bamboo. To achieve this goal, scanning electron microscopy (SEM), confocal laser scanning microscopy (CLSM), nanoindentation, and imaging Fourier transform infrared microscopy (imaging FT-IR) were applied. SEM images demonstrates FA resin is mainly located in the parenchymal cell cavity of bamboo, however the existence of FA resin in the small cavities of the bamboo fibers is also observed by CLSM. In addition, the result of nanoindentation and imaging FT-IR both indicates that FA can penetrate and polymerize within the cell wall of the bamboo fiber. It is then concluded the heterogeneous but multi-scale distribution of FA resin should be responsible for the significant improvement of furfurylated bamboo in both dimensional stability and biological durability.


Corresponding author: Yan Yu, College of Material and Engineering, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China; and Institute of New Bamboo and Rattan Based Materials, International Center for Bamboo and Rattan, Beijing, 100102, PR China, E-mail:

Funding source: National Key Research and Development Program of China

Award Identifier / Grant number: 2017YFD0600800

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 31800474

Funding source: State Special Research Fund of Forestry Public Welfare of China

Award Identifier / Grant number: 201404510

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: We would like to thank 13th Five-Year National Key Research and Development Program of China (no. 2017YFD0600800), National Natural Science Foundation of China (no. 31800474), as well as State Special Research Fund of Forestry Public Welfare of China (no. 201404510) for financial support.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2020-01-06
Accepted: 2020-05-27
Published Online: 2020-07-27
Published in Print: 2021-02-23

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