文献类型：期刊文献

英文题名：Study of the long-term degradation behavior of bamboo scrimber under natural weathering

作者：Zhang, Ya-Hui[1] Ma, Hong-Xia[2] Qi, Yue[1] Zhu, Rong-Xian[1] Li, Xing-Wei[2] Yu, Wen-Ji[1] Rao, Fei[3]

第一作者：张亚慧

通信作者：Qi, Y[1];Yu, WJ[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Dept Wood Based Panels & Adhes, Xiang Shan Rd, Beijing, Peoples R China;[2]Guangdong Acad Forestry, 233 Guangshan 1st Rd, Guangzhou, Peoples R China;[3]Zhejiang Sci Tech Univ, Sch Art & Design, Dept Ind Design, Hangzhou, Peoples R China

年份：2022

卷号：6

期号：1

外文期刊名：NPJ MATERIALS DEGRADATION

收录：;EI(收录号：20223012417308);Scopus(收录号：2-s2.0-85134765737);WOS:【SCI-EXPANDED(收录号:WOS:000830711100001)】；

基金：This work was financial supported by the National Nature Science Foundation of China (NSFC) General project (32171886), and also thanks to Key-Area Research and Development Program of Guangdong Province (2020B020216002).

语种：英文

外文关键词：Bamboo - Colorimetry - Fourier transform infrared spectroscopy - Scanning electron microscopy - Weathering - X ray photoelectron spectroscopy

摘要：In this work, the degradation behavior of bamboo scrimber are investigated under natural weathering system for six years. Fourier transform infrared spectroscopy (FTIR), x-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and colorimeter were used to characterize the change of bamboo scrimber surface and microstructure. Natural weathering led to degradation of lignin and rapid color changes, demonstrated by decrease of 1232 cm(-1), 1423 cm(-1) and 1506 cm(-1) absorption peaks, the reduction of C1and increase of C2, and Delta E* value notably. Lignin degradation resulted in micro-check formation in the cell walls of fibers and parenchyma cells within exposure time. In particular, parameters of weather resistance changed rapidly within the initial two years and stabilized in the following four years. It is also revealed that two natural regions with different type of climate have significantly affected the degradation behavior of bamboo scrimber.