接要：传统的溶剂型涂料正在被水性涂料逐渐取代，这是由于溶剂型涂料高的VOC，对环境造成了相当严重的污染。在探究如何降低溶剂型涂料的VOC的同时，水性涂料凭借自身低VOC，用水做溶剂等优点，逐渐成为研究的热点。现今，水性涂料发展迅速，但是水性涂料的性能与传统的溶剂型涂料相比较还有一定的差距。水性涂料与传统溶剂型涂料相比，低的交联密度、耐水性差、耐化学性差、稳定性差等都严重的影响着水性涂料的推广和使用。如何提升改善水性涂料的性能，使其成为环保低廉的高性能涂料，主要还是在于制备出相应的水性涂料交联剂。水性涂料交联剂的加入能非常显著的提高改善涂料的成膜及涂膜的性能。当前研究的水性交联剂中，水性金属离子交联剂交联的漆膜具有高的交联密度，耐水性好而得到广泛的研究。

本实验主要工作为制备钛离子交联剂，使用钛酸丁酯与三乙醇胺螯合制得钛离子交联剂。然后，利用傅里叶FT-IR光谱仪和紫外近红外分光光度计来探究其制备时发生的反应及其反应机理；探究不同溶剂对交联剂的影响，将制得的交联剂与水性环氧制备涂料，得到涂膜，测试涂膜的电化学性能和接触角，来比较不同量交联剂的效果，确定交联剂的最佳使用量和制备交联剂时原料的配比。

关键词：水性涂料；水性交联剂；钛酸丁酯；螯合剂；三乙醇胺

Abstract：Traditional solvent based coatings are being gradually replaced by waterborne coatings, which are due to the high VOC of solvent based coatings, which cause considerable environmental pollution. While exploring how to reduce the VOC of solvent based coatings, waterborne coatings have become the focus of research by virtue of their low VOC and water use as solvents. Nowadays, waterborne coatings are developing rapidly, but there is still a gap between the properties of waterborne coatings and those of traditional solvent based coatings. Compared with the traditional water-based paint solvent based coatings, crosslink density, low water resistance, chemical resistance, stability has a serious impact on the promotion and use of water-based paint, how to enhance the performance of improved water paint, make it become a high performance and low environmental protection coating, crosslinking agent of water become the main research direction. In the present water crosslinking agent, water soluble metal ion crosslinking agent has been widely studied because of its high crosslinking density and water resistance, and it has its own stability.

The main work of this experiment is to prepare titanium ion crosslinking agent. The titanium ion crosslinker is prepared by chelation of butyl titanate with triethanolamine. Then, using Fourier FT-IR spectroscopy and UV Vis NIR spectrophotometer to explore the reaction and reaction mechanism of the preparation; explore the effects of  different solvents on the crosslinking agent, the crosslinking agent prepared with waterborne epoxy paint was prepared by coating, electrochemical performance and contact angle test film. To compare the different amount of crosslinking agent, crosslinking agent to determine the best use of the amount of crosslinking agent and preparation of raw materials.

Keywords: Waterborne coatings； Water binding agent； Tetra-n-butyl titanate； Chelating agent；Triethanolamine

目 录

第一章绪论 1

1.1涂料概述 1

1.2涂料的组成 1

1.3水性涂料 2

1.4常用的水性涂料 3

1.4.1水性环氧涂料 3