攀枝花学院本科毕业设计（论文）
水性聚氨酯涂料的制备及性能研究
学生姓名： 蒋 治 国 学生学号： 201010904010 院（系）： 生物与化学工程学院 年级专业： 2010 级应用化学 指导教师： 范 文 娟 助理指导教师： 常 会
二〇一四年六月
攀枝花学院本科毕业设计（论文） 摘要
摘 要
现代涂料的发展方向是高效能、高性能、无公害、高环保、低污染、节能且符合可持续发展。
本论文以丙烯酸丁酯、甲基丙烯酸、和甲基丙烯酸羟乙酯为单体，用乳液聚合的方法合成了一种可光固化水性丙烯酸酯树脂乳液，与亚硫酸氢钠封端的MDI混合制备了水性聚氨酯丙烯酸酯涂料，考察了反应温度，乳化剂，搅拌速率及单体配比等对乳液聚合的影响，研究了丙烯酸酯乳液与MDI的配比对漆膜性能的影响。用红外光谱( IR ) 分析了共聚乳液的结构，用差示扫描量热仪（DSC）测试了共聚物的热性能。结果表明：在80℃时，加入1gOP-10和0.6g十二烷基硫酸钠在150转/分的转速下，各个单体配比合成的乳液性能最好。
关键词：丙烯酸酯，异氰酸酯，乳液聚合，封端
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攀枝花学院本科毕业设计（论文） ABSTRACT
ABSTRACT
The development direction of modern paint is a high performance, high performance, non pollution, high environmental protection, low pollution, energy saving and sustainable development
In this thesis, butyl acrylate, methacrylic acid, and methyl methacrylate as monomer, by emulsion polymerization to synthesize a kind of light curable waterborne acrylic resin emulsion, and Sodium Bisulfite terminated MDI was prepared by mixing aqueous polyurethane acrylate coatings, the reaction temperature, emulsifier, stirring rate and the molar ratio of monomers on emulsion polymerization of acrylic emulsion, and the ratio of MDI on the properties of coating. Using infrared spectroscopy (IR) analysis of the structure of copolymer emulsion, using differential scanning calorimetry (DSC) thermal properties of the copolymers tested. The results showed that: at 80 ℃, adding 1gOP-10 and 0.6g twelve sodium dodecyl sulfate at 150 rpm, each monomer film performance is the synthesis of the best.
Keywords: Acrylate, emulsion polymerization, terminated isocyana
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攀枝花学院本科毕业设计（论文） 目录
目 录
1绪论 ..................................................................................................................... 1
1.1 引言 ............................................................................................................................ 1 1.2丙烯酸树脂涂料 ........................................................................................................ 1
1.2.1丙烯酸树脂涂料的简介 ................................................................................. 1 1.2.2丙烯酸酯的分类 ............................................................................................. 1 1.3聚氨酯涂料 ................................................................................................................ 3
1.3.1聚氨酯涂料的简介 ......................................................................................... 3 1.3.2双组份聚氨酯涂料 ......................................................................................... 3 1.3.3单组份聚氨酯涂料 ......................................................................................... 4 1.4 紫外光固化涂料 ........................................................................................................ 4
1.4.1紫外光固化原理 ............................................................................................. 4 1.5.2 紫外光固化的设备 ......................................................................................... 5 1.5 涂料合成方法 ............................................................................................................ 6
1.5.1 乳液聚合 ......................................................................................................... 6 1.5.2 原位聚合 ......................................................................................................... 7 1.5.3 悬浮聚合 ......................................................................................................... 7 1.5.4 接枝聚合 ......................................................................................................... 8 1.5.5 本体聚合 ......................................................................................................... 8 1.5.6 溶液聚合 ......................................................................................................... 8 1.6实验方案及意义 ........................................................................................................ 9
1.6.1 实验方案 .............................................................................................................. 9
1.6.2实验意义 ......................................................................................................... 9
2实验部分 ............................................................................................................. 1
2.1 实验仪器及药品 ........................................................................................................ 1
2.1.1 实验仪器 ......................................................................................................... 1 2.1.2 实验药品 ......................................................................................................... 1 2.2 实验配方 .................................................................................................................... 1 2.3 实验步骤 ................................................................................................................... 2
2.3.1 丙烯酸酯树脂的实验步骤 ............................................................................. 2 2.3.2 亚硫酸氢钠封端MDI的实验步骤 ................................................................ 3 2.4 实验测试 .................................................................................................................... 3
2.4.1 产品外观 ......................................................................................................... 3
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攀枝花学院本科毕业设计（论文） 目录
2.4.2 固含量 ............................................................................................................ 4 2.4.3 转化率 ............................................................................................................. 4 2.4.4 粘度测试 ......................................................................................................... 5 2.4.5 耐水性测试 ..................................................................................................... 5 2.4.6 红外光谱测试 ................................................................................................. 5 2.4.7热性能测试 ..................................................................................................... 5 2.4.8黏度的测试 ..................................................................................................... 5 2.4.9玻璃转化温度的计算 ..................................................................................... 5
3 结果与讨论 ....................................................................................................... 7
3.1 测试结果 .................................................................................................................... 7 3.2 实验现象 .................................................................................................................... 8 3.3实验条件控制 ............................................................................................................ 9 3.4 红外光谱分析 ............................................................................................................ 9 3.5 DSC测试 ................................................................................................................. 11 3.6 单体配比的影响 ...................................................................................................... 11
4 结论 ................................................................................................................. 14 参考文献 ............................................................................................................. 15 致谢 ..................................................................................................................... 16
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