Evaluation of natural weathering and thermal degradation behavior of furfurylated bamboo strips at different weight percent gain

Xinyao Liu, Junjia Liu, Youming Dong*, Mark Hughes, Miao Wu, Jianzhang Li

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

By filling hydrophobic furfuryl alcohol (FA) polymer into the bamboo structure, furfurylation can efficiently reduce the hygroscopicity of bamboo and enhance its mechanical properties and biological durability. However, limited studies on the weathering performance and thermal degradation behavior of furfurylated bamboo have been reported. In this study, furfurylated moso bamboo with 14.9%, 22.0%, and 28.6% weight percent gain (WPG) were prepared and their natural weathering performance and thermal degradation behavior were investigated using color measurements, ATR-FTIR, XPS, and TG-FTIR. The findings showed that at higher WPG, a darker color of the bamboo surface occurred. Although the initial distinction between the color parameters of the control and furfurylated bamboo is clear, it tends to become uniform during weathering. Furfurylation has a positive effect on the resistance to degradation of bamboo surfaces and the furfurylated samples exhibited smaller color changes and weight loss after weathering. The O/C ratio is clearly increased after weathering, indicating that substantial surface oxidation occurs both in unmodified and furfurylated bamboo. Natural weathering causes obvious degradation and photo-oxidation of FA polymers on the bamboo surface. The thermal degradation behavior between control and furfurylated bamboo is basically similar, but furfurylation delays the degradation of bamboo by elevating the peak temperatures. All of the results and findings will help increase the understanding of the weathering and thermal behavior of furfurylated bamboo and optimize its manufacturing process and utilization during its life time.

Original languageEnglish
Pages (from-to)289-299
Number of pages11
JournalEuropean Journal of Wood and Wood Products
Volume80
Issue number2
Early online date4 Jan 2022
DOIs
Publication statusPublished - Apr 2022
MoE publication typeA1 Journal article-refereed

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