文献类型：期刊文献

中文题名：热处理对进口辐射松木材化学性质的影响

英文题名：Effect of Heat-treatments on Chemical Properties of Imported Pinus Radiata Wood

作者：杨昇[1] 陈媛[1] 晏婷婷[1] 李改云[1]

第一作者：杨昇

机构：[1]中国林科院木材工业研究所木竹资源高效利用湖南省高校2011协同创新中心

年份：2019

卷号：33

期号：5

起止页码：44-48

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：中央级公益性科研院所基本科研业务费专项资金“桃花心木和辐射松木材性质与加工技术研究”(CAFYBB2017ZC003)

语种：中文

中文关键词：辐射松;热处理;心材;边材;抽提物;缓冲容量;木质素

外文关键词：Pinus radiata;heat-treatment;heartwood;sapwood;extracts;buffering capacities;lignin

分类号：S781.71;S791.252

摘要：热处理引发的木材组分含量及其分子结构的改变,是导致木材材性变化的本质原因,探索不同热处理温度下辐射松木心、边材的化学组分变化。结果表明,热处理后辐射松木材的抽提物含量降低,pH值升高,缓冲容量增加;心边材木质素结构差异较小,随处理温度升高,木质素单元主要连接结构(β-O-4'芳基醚键)断裂程度增加。
Imported Pinus radiata wood samples were treated under different temperatures and the chemical compositions of the samples were analyzed.Results showed that the extract contents of the samples decreased while pH value and buffering capacity of the samples all increased.When heating temperatures were elevated,there were no significant changes of lignin structure between heartwood and sapwood of the samples but more broken linkages(β-O-4' Aryl ether bond)of the lignin structure units were observed.