| 三聚氰胺添加方式对MUF胶粘剂性能的影响 |
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| 引用本文： | 郑云武,朱丽滨,顾继友,黄元波. 三聚氰胺添加方式对MUF胶粘剂性能的影响[J]. 中国胶粘剂, 2012, 0(1): 1-5 |
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| 作者姓名： | 郑云武 朱丽滨 顾继友 黄元波 |
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| 作者单位： | 西南林业大学材料工程学院;东北林业大学材料科学与工程学院 |
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| 基金项目： | 环保公益性行业科研专项资助项目(200809120);哈尔滨市攻关项目资助(2008AA4BG006);西南林业大学面上基金项目(111139) |
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| 摘 要： | 以三聚氰胺作为脲醛树脂(UF)的共聚改性剂制备MUF(三聚氰胺甲醛树脂)胶粘剂。探讨了三聚氰胺的添加方式对MUF胶粘剂性能的影响,同时对其固化特性、分子结构和耐热性等进行了分析。结果表明:三聚氰胺2次投料法可有效降低MUF胶粘剂的甲醛释放量,但其胶接强度也随之下降;同时,该MUF固化体系的外推固化温度、表观活化能和反应级数均有所增加,耐热性降低;另外,2次投料体系使MUF的相对分子质量降低、相对分子质量分布变宽。
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| 关 键 词： | 三聚氰胺 添加方式 三聚氰胺甲醛树脂 胶粘剂 |
Effect of feeding order of melamine on properties of MUF adhesives |
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| Zheng Yunwu,Zhu Libin,Gu Jiyou,Huang Yuanbo. Effect of feeding order of melamine on properties of MUF adhesives[J]. China Adhesives, 2012, 0(1): 1-5 |
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| Authors: | Zheng Yunwu Zhu Libin Gu Jiyou Huang Yuanbo |
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| Affiliation: | 1(1.College of Materials Engineering of Southwest Forestry University,Kunming 650224,China; 2.College of Materials Science and Engineering,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | With melamine as copolymerization modifier of UF(urea-formaldehyde resin),a MUF(melamine-formaldehyde resin) adhesive was prepared.The influences of feeding order of melamine on properties of MUF adhesives were discussed,and its curing properties,molecular structure and heat resistance were analysed.The results showed that the twice feeding method of melamine could effectively reduce formaldehyde emission but bonding strength was also reduced for MUF adhesives.At the same time,the curing temperature from extrapolation,apparent activation energy and reaction order were increased,but heat resistance was decreased for MUF curing systems.In addition,twice feeding system could reduce molecular weight and could broaden molecular weight distribution of MUF. |
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| Keywords: | melamine feeding order MUF adhesive |
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