文献类型：期刊文献

英文题名：Effect of density on the hygroscopicity and surface characteristics of hybrid poplar compreg

作者：Bao, Minzhen[1] Huang, Xianai[2] Zhang, Yahui[1] Yu, Wenji[1] Yu, Yanglun[1]

通信作者：Yu, WJ[1];Yu, YL[1]

机构：[1]Chinese Acad Forestry, Key Lab Wood Sci & Technol, State Forestry Adm, Res Inst Wood Ind, Xiang Shan Rd, Beijing 10091, Peoples R China;[2]Univ Quebec Chicoutimi, Canada 555,Boul Univ, Chicoutimi, PQ G7H 2B1, Canada

年份：2016

卷号：62

期号：5

起止页码：441-451

外文期刊名：JOURNAL OF WOOD SCIENCE

收录：;EI(收录号：20162902599014);Scopus(收录号：2-s2.0-84978153707);WOS:【SCI-EXPANDED(收录号:WOS:000386926500007)】；

基金：The authors appreciate the financial support from the National Nonprofit Institute Research Grant of CAFINT (CAFINT2015C08).

语种：英文

外文关键词：Compreg; Density; Hygroscopicity; Surface characteristics; Microstructure

摘要：The objective of this study is to investigate the relevance of hybrid poplar compreg density and its physical properties and surface characteristics, such as hygroscopicity, dimensional stability, wettability, roughness, surface energy, and porosity. The different desired densities (ranging from 0.6 to 1.2 g/cm(3)) of compreg were achieved using manufacturing processes with various parameters. The results indicated that the water absorption decreased and dimensional stability improved with the density increasing in the range of this study. In addition, the density was contributed to the reduction of the wettability and the roughness of compreg. Furthermore, the evaluation of the surface energy showed that the total surface free energy declined significantly due to the densification process. The high density reduced the apertures present in the vessels and the fiber cells and, consequently, decreased the total porosity of compreg. This, in turn, impeded the penetration of moisture into compreg and reduced its hygroscopicity.