| 三聚氰胺-乙二醛-甲醛共缩聚树脂合成研究 |
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| 引用本文： | 孙玉来,杜官本,雷洪,邓书端. 三聚氰胺-乙二醛-甲醛共缩聚树脂合成研究[J]. 中国胶粘剂, 2012, 0(5): 9-12,20 |
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| 作者姓名： | 孙玉来 杜官本 雷洪 邓书端 |
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| 作者单位： | 西南林业大学材料工程学院 |
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| 基金项目： | 国家自然科技基金项目(30930074) |
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| 摘 要： | 以三聚氰胺、甲醛和乙二醛为原料,在碱性条件下成功合成了均一透明的三聚氰胺-乙二醛-甲醛共缩聚树脂(MGF),并将MGF胶粘剂用于刨花板的制备。以红外光谱(FT-IR)法、差示扫描量热(DSC)法和核磁共振(13C-NMR)法等为测试手段对MGF的结构和性能进行了表征和测定,并采用正交试验法优选出合成MGF的最佳工艺条件。结果表明:当n(甲醛)∶n(三聚氰胺)∶n(乙二醛)=2.2∶1∶0.4、反应温度为75℃和pH=9.0时,MGF的综合性能相对最好,并且其室温储存期超过30 d。
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| 关 键 词： | 三聚氰胺-乙二醛-甲醛共缩聚树脂 木材胶粘剂 刨花板 合成工艺 |
Study on synthesis of melamine-glyoxal-formaldehyde copolycondensation resin |
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| Sun Yulai,Du Guanben,Lei Hong,Deng Shuduan. Study on synthesis of melamine-glyoxal-formaldehyde copolycondensation resin[J]. China Adhesives, 2012, 0(5): 9-12,20 |
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| Authors: | Sun Yulai Du Guanben Lei Hong Deng Shuduan |
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| Affiliation: | 1.College of Materials Engineering of Southwest Forestry University,Kunming 650224,China) |
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| Abstract: | With melamine,formaldehyde and glyoxal as raw materials,a homogenization and transparent MGF(melamine-glyoxal-formaldehyde copolycondensation resin) was successfully synthesized under alkaline condition,then a flakeboard was pressed by MGF adhesive.The structure and properties of MGF were characterized and tested by infrared spectrum(FT-IR),differential scanning calorimetry(DSC),13C-NMR(nuclear magnetic resonance) and other testing meanses,and the optimal process conditions of preparing MGF were preferred by orthogonal experiment.The results showed that the MGF had reversely best combination property,and its storage time at room temperature was more than 30 d when molar ratio of n(formaldehyde)∶n(melamine)∶n(glyoxal) was 2.2∶1∶0.4,reaction temperature was 75 ℃ and pH value was 9.0. |
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| Keywords: | melamine-glyoxal-formaldehyde copolycondensation resin(MGF) adhesive for wood flakeboard synthesis process |
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