Study on the Soy Protein-Based Adhesive Cross-Linked by Glyoxal

作     者：Zhigang Wu Jiankun Liang Hong Lei Bengang Zhang Xuedong Xi Lifen Li 

作者机构：Yunnan Provincial Key Laboratory of Wood Adhesives and Glued ProductsSouthwest Forestry UniversityKunming650224China College of ForestryGuizhou UniversityGuiyang550025China Kaili UniversityQiandongnan556011China 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2021年第9卷第2期

页      面：205-218页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0706[理学-大气科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：This work was supported by Science-technology Support Foundation of Guizhou Province of China(Nos.2325 and 1Y125) the Growth Project of Young Scientific and Technological Talents in Colleges and Universities of Guizhou Province(No.184) Yunnan Fundamental Research Key Projects(No.2019FA012) National Natural Science Foundation of China(Nos.31870546 and 31800481) 

主　　题：Glyoxal soy protein-based adhesive cross-link 

摘      要：Based on the ESI-MS and ^(13)C-NMR analysis of the forms of glyoxal in acidic and alkaline solutions,the soy-based adhesive cross-linked by glyoxal was prepared in this *** results showed that glyoxal existed in water in different forms at different pH *** alkaline conditions,glyoxal transformed to glycolate through the intramolecular disproportionation *** acidic conditions,although some of glyoxal transformed to glycolate as what happened under alkaline conditions,most of glyoxal molecules existed in the form of fiveor six-membered cyclic ether *** ethylene tetraol or free aldehyde group was actually detected under these *** glyoxal reacted with soy protein under both acidic and alkaline conditions,alkaline conditions were more favorable for the improvement of mechanical performance and water resistance of soybased adhesives than acid conditions.