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摘要：室温固化双组份水性环氧树脂涂料是一种以水为溶剂的绿色环保型涂料,是目前水性涂料中较为活跃的研究和开发领域之一。本文主要用三乙烯四胺(TETA)与多种环氧树脂反应,最后制得一种新型水性环氧固化剂。对产物进行了结构表征，就操作条件对固化剂的影响等进行了实验研究，并对制备环氧树脂乳液的过程进行了分析，研究了固化膜的稳定性及其他物理化学性能。用傅立叶红外（FTIR)对产物进行结构表征。利用环氧值的变化研究反应原料配比、反应温度对反应产生的不同影响。对水性环氧固化剂的粒径及其分布、粘度进行研究。最后确定了水性固化剂和环氧树脂乳液的制备工艺流程，及其固化膜的配比。23688
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毕业论文关键词：双组份室温固化；水性固化剂；环氧树脂乳液
The preparation of two-component water-borne epoxy resin and its application research
Abstract: Two-component ambient-cured waterborne epoxy coatings system is one perspective approach to replace solvent borne epoxy, which attracts so much attention due to their broaden popularities in a variety coatings. A novel waterborne epoxy curing agent was prepared using TETA and liquid epoxy resin. All factors which affect the synthesis and the properties of the waterborne epoxy curing agent were analyzed. The physical properties of the cured film were measured. Meanwhile, the performance of the cured film were studied. The structure of the products was characterized by Fourier Transform Infrared Spectroscopy(FTIR) respectively. The effects of temperature and the molar ration of the starting materials towards the reaction could be investigated from the mensuration of the change of epoxy value. The particle size and the distribution of waterborne curing agent,adhesion of the cured film made from the waterborne curing agent modified by silane were investigated. Finally the preparation process of waterborne curing agents and epoxy resin emulsion, and its ratio of solidified membrane was determined.
Key words: Two-component curing at room temperature; Waterborne curing agents; Epoxy resin emulsion
目录
1 绪论 1
1.1 研究背景 1
1.2 研究意义与目的 1
1.3 环氧树脂涂料的特点 1
1.4双组份水性环氧树脂的组成 2
1.4.1 环氧树脂 2
1.4.2 水性环氧固化剂 2
1.4.3环氧树脂乳化剂 3
1.5 双组份固化水性环氧树脂的优势，存在问题和前景 4
1.5.1双组份水性环氧树脂的优势 4
1.5.2 双组份水性环氧树脂存在的问题 4
1.5.3双组份水性环氧树脂的前景 4
1.6 双组份水性环氧树脂的研究进展，合成机理和分类 5
1.6.1 双组份水性环氧树脂的研究进展 5
1.6.2 双组份水性环氧树脂的合成机理 6
1.6.3 双组份水性环氧树脂的分类 7
1.7 本文主要内容 7
2 实验部分 8
2.1实验原料 8
2.2产品合成设备及型号信息 9
2.3合成工艺 9
2.3.1 水性环氧固化剂的合成 9
2.3.2 反应型环氧树脂乳化剂的合成 9
2.3.3 相反转法制备环氧树脂乳液的合成 10
2.3.4 有机硅改性水性环氧树脂固化剂 11
2.3.5 水性环氧树脂固化膜的制备 11
2.4表征方法 11
2.4.1 乳液外观 11
2.4.2 水性环氧树脂固含量的测定 11
2.4.3 粘度的测定 12