文献类型：期刊文献

英文题名：Green Strategy for Improving the Formation of Reconstituted Wood-Based Composites

作者：Yang, Sheng[1] Gui, Chengsheng[2] Fan, Dongbin[1] Li, Gaiyun[1]

第一作者：杨昇

通信作者：Fan, DB[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Zhejiang Shenghua Yunfeng New Mat Co Ltd, Yunfeng Moganshan Home Furnishing Res Inst, Huzhou 313000, Zhejiang, Peoples R China

年份：2023

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20231914064143);Scopus(收录号：2-s2.0-85157959593);WOS:【SCI-EXPANDED(收录号:WOS:000983652800001)】；

基金：We acknowledge the financial support for this research from the special funds for basic scientific research business expenses of the central public welfare scientific research institutes [CAFYBB2020MB001] .

语种：英文

外文关键词：wood-based composite; hot-pressing; gluing; deep eutectic system; dimensional stability

摘要：In this study, a novel strategy inspired by the low melting temperature of a deep eutectic system (DES) was proposed to improve the efficient formation of reconstituted wood-based composites prepared via hot pressing. Hydrogen bond acceptors were used to prepare DES with lignin and hemicelluloses in a wood matrix in situ to achieve this goal. The feasibility and performance mechanism of this method were investigated in depth. Results show that the glass-transition point, Tg, of the amorphous components could reduce by more than 30 degrees C after the formation of DES. The dimensional stability and mechanical performances of the reconstituted wood-based composites were synchronously improved. The uniform bonding structure formed due to the efficient distribution of amorphous components (lignin and hemicelluloses) between the bonded interface driven by low-temperature melting of DES was an important reason for this phenomenon. In addition, the re-condensation of the degradation products of the amorphous components in wood also contributed to this. The consumption of a synthetic adhesive for wood interface bonding will be reduced in this situation. This work created a revolutionary approach for the preparation of green wood-based composites.