水性环氧树脂的制备及性能研究

摘要随着保护环境意识的提高，以及日益增加的环境压力迫使涂料工业不断生产环保型产品，从而减少挥发性有机化合物（VOC）的释放，这导致了产能从溶剂型涂料到水性涂料连续的转移。水性环氧树脂不仅是一种环保涂料，而且使用方便安全，适合多种施工环境，成为环氧树脂发展应用的一个重要领域。86473

以过氧化苯甲酰为引发剂，加入丙烯酸类单体与环氧树脂发生接枝共聚反应，并利用对氨基苯甲酸与环氧基的开环反应，在环氧树脂链上引入强亲水基团—COOH获得具有水稀释特性的丙烯酸-环氧改性树脂。本文还通过控制苯乙烯（St）和丙烯酸异辛酯（2-EHA）用量来改变涂料玻璃化温度（Tg），利用氨基树脂对改性树脂固化后，采用FT-IR 红外光谱、DSC、动电位极化曲线分析、耐紫外老化测试、热重分析TGA等测试分析方法对所合成的不同Tg树脂固化物的结构、机械力学、耐紫外老化、耐腐蚀等性能进行全面的分析表征，最终结果表明，当设计玻璃化温度为-15℃，PABA与环氧树脂比例为1:1时，所得改性树脂固化物的综合性能较好。

毕业论文关键词：环氧-丙烯酸复合树脂；水分散树脂；自乳化；玻璃化温度

Abstract With the enhancement of environmental protection consciousness, and the increasing environmental pressure forced coating industrial continuous production of environmentally friendly products, thereby reducing volatile organic compound (VOC) release, which leads to the capacity from solvent-based coatings to water-based coatings and continuous transfer。 Waterborne epoxy resin is not only a kind of environmental protection paint, but also easy to use and safe, suitable for a variety of construction environment, has become an important field of development and application of epoxy resin。

Benzoyl peroxide as an initiator，Grafting copolymerization of acrylic acid monomer with epoxy resin，By using the open loop reaction of amino benzoic acid and epoxy group, the strong hydrophilic group -COOH was introduced into the epoxy resin chain to obtain the hydrophilic acrylic epoxy resin。 This paper through the control of styrene (St) and isooctyl acrylate (2-EHA) coating amount to change the glass transition temperature (Tg), After curing the modified resin by using amino resin， The FT-IR infrared spectra, DSC, dynamic polarization curve analysis, resistant UV aging test, thermal gravimetric analysis TGA analysis method for the synthesis of different Tg of cured resin structure, mechanical and anti-ultraviolet aging, corrosion resistance and other properties were comprehensive analysis and characterization。 The final results show that the glass temperature of -15℃, the ratio of PABA to epoxy resin is 1:1, the comprehensive performance of the modified resin is better。

Keywords: epoxy-acrylic resin; water-dispersion resin; self-emulsifying; glass transition temperature

第一章绪论 1

1。1 环氧树脂 1

1。2 水性环氧树脂 2

1。2。1环氧树脂水性化进展 2

1。2。2水性环氧树脂制备技术 3

1。2。3改性水性环氧树脂 6

1。3环氧树脂固化剂 7

1。3。1胺类固化剂 7

1。3。2有机酸酐类固化剂 7

1。3。3合成树脂类固化剂 8

1。3。4潜伏型固化剂 8

1。4环氧树脂固化物性能水性环氧树脂的制备及性能研究:http://www.youerw.com/cailiao/lunwen_106261.html