高浓度甲醛和大豆蛋白改性酚醛树脂的研究  

Study on phenolic resin modified by high concentration formaldehyde and soy protein

作　　者：张本刚[1,2] 吴志刚 席雪冬[1] 张俊[1] 余丽萍[2] 王洪艳[3] Zhang Bengang;Wu Zhigang;Xi Xuedong;Zhangjun;Yu Liping;Wang Hongyan(Wood Kunming Adhesives and Glued Products Key Laboratory of Yunnan Province, Southwest Forestry University, 650224, China;College of Forestry, Guizhou University, Guiyang 550025, China;Zhejiang Forestry Academy,Hangzhou 310016,China)

机构地区：[1]西南林业大学云南省木材胶粘剂及胶合制品重点实验室,云南昆明650224 [2]贵州大学林学院,贵州贵阳550025 [3]浙江省林业科学研究院,浙江杭州310016

出　　处：《中国胶粘剂》2018年第5期23-26,45,共5页China Adhesives

基　　金："十二五"国家科技支撑计划项目(2015BAD14B03);贵州省教育厅项目(黔教合KY字[2017]114号);贵州省林业厅项目(黔林科合[2017]14号);云南省教育厅项目"MUF树脂醚化增韧改性及其在胶合木结构中的应用";云南省教育厅研究生创新项目(2016YJS099)

摘　　要：以高浓度甲醛和大豆蛋白制备了改性酚醛树脂,采用核磁共振和动态热机械性能仪器分析了不同大豆蛋白含量对改性酚醛树脂结构和耐热性能的影响。研究结果表明:改性酚醛树脂具有高黏度、高固体含量、高缩聚度和高羟甲基酚含量特点;较普通酚醛树脂,改性酚醛树脂强度性能有所提高,固化起始温度和固化温度也有所降低,但耐热性能基本不变;改性酚醛树脂游离甲醛比较低,有利于酚醛树脂的环保性;此外,大豆蛋白结构的存在增强了酚醛树脂微生物降解性能。The modified phenol-formaldehyde resin was prepared with high concentration formaldehyde and soybean protein,the influences of different soy protein content on the structure and heat resistance of the modified resin were analyzed by NMR and DMA instruments.The research results showed that the modified phenol-formaldehyde resin had the characteristics of high viscosity,high solid content,high polycondensation degree and high hydroxymethyl phenol content.Compared with ordinary PF resin,the strength performance of modified phenolic resin was improved,the initial curing temperature and curing temperature were also reduced,but the heat resistance was basically unchanged.The free formaldehyde of modified resin was relatively low and beneficial to the environmental protection.Furthermore,the biodegradability of modified resin was enhanced by the presence of soy protein.

关 键 词：高浓度甲醛 大豆蛋白 酚醛树脂 核磁共振碳谱 动态力学分析 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]