文献类型：期刊文献

英文题名：Laminating wood fiber mats into a densified material with high performance

作者：Wei, Jinguang[1] Rao, Fei[1] Zhang, Yahui[1] Yu, Wenji[1] Hse, Chung[2] Shupe, Todd[3]

第一作者：Wei, Jinguang

通信作者：Yu, WJ[1]

机构：[1]Chinese Acad Forestry, Scrimber Engn & Technol Res Ctr, Res Inst Wood Ind, State Forestry Adm, Beijing 100091, Peoples R China;[2]USDA, Southern Res Stn, Forest Serv, Pineville, LA 71360 USA;[3]Wood Sci Consulting LLC, Baton Rouge, LA 70816 USA

年份：2019

卷号：253

起止页码：358-361

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20192807157643);Scopus(收录号：2-s2.0-85068369768);WOS:【SCI-EXPANDED(收录号:WOS:000482629500090)】；

基金：This work was funded by the National Key R&D Program of China (No. 2017YFD0601205), Major Science and Technology Program of Hunan Province (No. 2017NK1010) and China Scholarship Council.

语种：英文

外文关键词：Composite materials; Wood fiber mats; Microstructure; Mechanical properties; Water resistance

摘要：To develop high-performance wood materials, a novel preparation strategy is presented in this study. Wood fiber mats impregnated with phenolic resin, were laminated into a densified material. Wood lumens collapsed layer by layer during densification, leading to a compact multi-layered structure. The densified material had excellent mechanical properties and favorable water resistance. The flexural, compressive, and short-beam shearing strength were approximately 230%, 400%, and 260% higher than that of natural wood, respectively. The water absorption rate and thickness swelling rate in boiled water were 19% and 5.7%, respectively. Surface water repellency was also enhanced due to reduction of hydrophilic groups on the surface. Such high performance makes the material a promising candidate for advanced engineering structures and applications. (C) 2019 Elsevier B.V. All rights reserved.