文献类型：期刊文献

英文题名：An innovative strategy to prepare compressed wood with improved dimensional stability and mechanical properties

作者：Han, Xiao[1,2] Guo, Dengkang[3,4] Yang, Sheng[1] Li, Gaiyun[1,4] Zhang, Shifeng[2]

第一作者：Han, Xiao

通信作者：Li, GY[1];Guo, DK[2];Guo, DK[3];Li, GY[3]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, 1 Dong Xiao Fu,Xiang Shan Rd, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, MOE Key Lab Wooden Mat Sci & Applicat, Beijing 100083, Peoples R China;[3]China Natl Bamboo Res Ctr, Engn Technol Res Ctr Bldg & Decorating Mat Bamboo, Key Lab High Efficient Proc Bamboo Zhejiang Prov, Hangzhou 310012, Peoples R China;[4]1 Dongxiaofu Xiangshan Rd, Beijing 100091, Peoples R China

年份：2025

卷号：59

期号：6

外文期刊名：WOOD SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20254319373223);Scopus(收录号：2-s2.0-105019180682);WOS:【SCI-EXPANDED(收录号:WOS:001592821800001)】；

基金：AcknowledgementsThis work was financially supported by the National Key Research and Development Program of China [2023YFD2200502].

语种：英文

摘要：The mechanical properties of wood are significantly enhanced and its application scope is broadened through compression treatment. However, balancing deformation fixation with the performance of compressed wood is challenging. This study significantly enhanced the dimensional stability of compressed wood while preserving its mechanical properties by grafting N-Methylolacrylamide (NMA) onto wood cell walls and applying thermally assisted surface compression. The NMA-modified compressed wood exhibited improved hydrophobic qualities and a considerably low set recovery of only 0.29%, which is attributable to the cross-linked network formed by the condensation of NMA with wood components. Furthermore, the NMA-modified compressed wood exhibited outstanding mechanical properties, such as improved hardness, bending strength, and impact toughness. Its bending strength (263.5 MPa) was approximately 2.6 times greater than that of natural wood (100.3 MPa). NMA-modified compressed wood, which is characterized by high-dimensional stability and mechanical properties, exhibits significant potential as an engineering material.