文献类型：期刊文献

英文题名：Investigation of Low-molecular Weight Phenol Formaldehyde Distribution in Tracheid Cell Walls of Chinese Fir Wood

作者：Huang, Yanhui[1] Fei, Benhua[2] Zhao, Rongjun[3]

第一作者：Huang, Yanhui

通信作者：Fei, BH[1]

机构：[1]Beijing Forestry Univ, Minist Educ, Key Lab Wooden Mat Sci & Applicat, Beijing 100083, Peoples R China;[2]Int Ctr Bamboo & Rattan, Beijing 100102, Peoples R China;[3]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2014

卷号：9

期号：3

起止页码：4150-4158

外文期刊名：BIORESOURCES

收录：;EI(收录号：20142217778503);Scopus(收录号：2-s2.0-84901305178);WOS:【SCI-EXPANDED(收录号:WOS:000344184300034)】；

基金：This work was financially supported by projects from the Fundamental Research Funds for the Central Universities (No. BLX2013004) and the National Natural Science Foundation of China (Grant No. 31370563).

语种：英文

外文关键词：Phenol-formaldehyde resin; Cell wall; Ultraviolet micro-spectrophotometer; Absorbance

摘要：Treatment with water-soluble low-molecular weight phenol-formaldehyde resin is an effective method to improve wood properties. In this paper, plantation wood of Chinese fir was modified with low-molecular weight phenol-formaldehyde resin. The absorbance by tracheid cell walls of phenol-formaldehyde resin in treated and untreated reference samples were measured with an ultraviolet micro-spectrophotometer. The UV absorbance values of earlywood tracheids and middle lamella in treated wood were significantly increased, with an average increase of 49% and 23%, respectively. Moreover, after treatment with low-molecular weight phenol-formaldehyde resin, the UV absorbance of the earlywood tracheid cell walls of Chinese fir increased to more than 47%, regardless of whether or not the cell lumens were filled with resin. After treatment with low-molecular weight phenol-formaldehyde resin, the UV absorbance of earlywood tracheid cell walls at different locations did not vary greatly. This study provides direct support for the improvement of the physical and mechanical properties of resin-modified Chinese fir in terms of penetration of the resin into the cell walls.