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三聚氰胺-尿素-甲醛共聚树脂的胶接性能
引用本文:郑云武,朱丽滨,顾继友,张彦华.三聚氰胺-尿素-甲醛共聚树脂的胶接性能[J].东北林业大学学报,2010,38(2).
作者姓名:郑云武  朱丽滨  顾继友  张彦华
作者单位:东北林业大学,哈尔滨,150040;东北林业大学,哈尔滨,150040;东北林业大学,哈尔滨,150040;东北林业大学,哈尔滨,150040
基金项目:哈尔滨市科技攻关计划项目(2008AA4BG006);;东北林业大学青年科研基金(09013)
摘    要:从实际应用出发,利用三聚氰胺(M)对脲醛树脂(UF)进行共聚改性,研究树脂的胶接性能,在尿素(U)分两次(U1、U2)加入的前提下探讨了三聚氰胺的质量分数、添加方式、甲醛(F)与尿素(U)物质的量比及缩聚阶段甲醛与尿素(U1)物质的量比的不同对树脂性能的影响。结果表明:随着F与U1物质的量比以及三聚氰胺质量分数的增加,胶接强度增加,甲醛释放量明显降低;F与U物质的量比升高,胶接强度以及甲醛释放量都明显提高;二次投料可以有效降低甲醛释放量。当n(F)∶n(U)=1.3,n(F)∶n(U1)=1.9,三聚氰胺的加入量为16%时,胶合板胶接强度达到GB/T9846.3—2004I类板的要求,甲醛释放量达到GB/T9846.3—2004E1级。

关 键 词:三聚氰胺  脲醛树脂  共聚改性  胶接性能

Bonding Properties of Melamine-urea-formaldehyde Resin by Copolymerization
Zheng Yunwu,Zhu Libin,Gu Jiyou,Zhang Yanhua.Bonding Properties of Melamine-urea-formaldehyde Resin by Copolymerization[J].Journal of Northeast Forestry University,2010,38(2).
Authors:Zheng Yunwu  Zhu Libin  Gu Jiyou  Zhang Yanhua
Institution:College of Material Science and Engineering;Northeast Forestry University;Harbin 150040;P.R.China
Abstract:Melamine was used to modify UF resin by copolymerization based on practical application.The bonding performances of the UF resin were systematically studied.The effects of amount of melamine,adding methods,F/U and F/U1 molar ratios in the condensation stage on the bonding performances of UF were all analysed.Results indicated that,with the increase of F/U1 molar ratio and amount of melamine,the bonding strength increased and the formaldehyde emission decreased obviously.The bonding strength and formaldehyde...
Keywords:Melamine  UF resin  Modification by copolymerization  Bonding properties  
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