文献类型：期刊文献

英文题名：In Polymerization of Environment Friendly Melamine-Urea-Glyoxal Resin in Rubber Wood for Improved Physical and Mechanical Properties

作者：Ping, Lijuan[1,2] Chai, Yubo[1] Zhang, Fangwen[2] Sun, Bailing[1] Liu, Junliang[1]

第一作者：Ping, Lijuan

通信作者：Sun, BL[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Xiang Shan Rd, Beijing 100091, Peoples R China;[2]Beijing New Bldg Mat Grp Corp, Beijing 10096, Peoples R China

年份：2021

卷号：2021

外文期刊名：INTERNATIONAL JOURNAL OF POLYMER SCIENCE

收录：;EI(收录号：20214111003299);Scopus(收录号：2-s2.0-85116690426);WOS:【SCI-EXPANDED(收录号:WOS:000703293800001)】；

基金：This paper received special funds for basic scientific research business expenses of Chinese Academy of Forestry (CAFYBB2017ZX003-04) and special funds for basic scientific research business expenses of Central Nonprofit Research Institutes (CAFYBB2021QA002).

语种：英文

外文关键词：Additives - Biomechanics - Building materials - Energy dispersive spectroscopy - Mechanical properties - Metabolism - Rubber - Scanning electron microscopy - Urea - Wood products

摘要：In the study, we report that a safe and simple way for upgrading inferior rubber wood through the combined modification of environment-friendly MUG resin was synthesized from glyoxal, melamine, urea, and other additives. MUG-treated wood samples were prepared with six different MUG resin concentrations (5, 15, 25, 35, 45, and 55 wt %) into the wood matrix and then heated and polymerized to form a solid and hydrophobic MUG resin in the wood scaffold, and the physico-mechanical properties were evaluated. As the MUG resin concentration increased, the weight percent gain and density increased, water uptake and leachability decreased, and the antiswelling efficiency increased at first and then decreased. MUG-treated wood sample can be prepared when the MUG resin concentration was set as 25%, and the physical properties of treated wood was optimum. Scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy analysis showed that the MUG resin is widely distributed in the cell lumens and cell walls. With enhanced physico-mechanical properties, MUG-treated wood sample can be well used as a promising alternative to existing engineered wood products for structural applications.