中文摘要：

采用溶胶-凝胶法制备了有机-无机杂化硅溶胶，将其作为改性剂来制备不同配比的改性环氧树脂涂层。利用红外光谱对合成的有机-无机杂化硅溶胶进行了表征。测试了改性涂层的物理化学性能和在模拟油田采出水中的电化学交流阻抗谱，并对涂层进行SEM和EDS分析。结果表明：红外光谱分析合成的有机-无机杂化硅溶胶得到了所需要的特征基团；当m（杂化硅溶胶）：m（环氧树脂）-5：4时，涂层的物理性能最佳，同时涂层的耐酸、耐碱效果也得到增强；EIS分析得到其在模拟油田采出水中的耐腐蚀性能有显著改善；从SEM和EDS分析得到m（杂化硅溶胶）：m（环氧树脂）-5：4时，涂层的表面形貌相对最好且没有团聚现象，而当m（杂化硅溶胶）：m（环氧树脂）-5：1时，涂层的表面团聚现象较为严重。

英文摘要：

Organic inorganic hybrid silica sol was prepared by sol-gel method, and the modified epoxy resin coating of different proportion was prepared with silica sol as modifier. The physical and chemical properties of the modified coating were tested, and the electrochemical impedance spectra （EIS） in the simulated oilfield produced water were measured, and the coating was also analyzed by scanning electron microscope （SEM） and energy dispersive spec- troscopy （EDS）. The results show that the organic-inorganic hybrid silica sol by the analysis and synthetize of infrared spectroscOPy obtained the required characteristics of groups. When the mass ratio of organic-inorganic silica sol hy- bridized and epoxy resin was 5 ： 4, coating got the best physical performance. At the same time, the effect of acid and alkali resistance of coating had also been enhanced; the corrosion resistance in the simulated oilfield produced water had improved observably via the analysis of EIS. From the analysis of SEM and EDS, the morphology of the coating surface was relatively best and it didn＇t have agglomeration phenomenon when the amount ratio of silica sols and epoxy resin was 5 ： 4. And when the mass ratio of silica sol and epoxy resin was 5 ： 1, the agglomeration phenomenon on the surface of coating was serious.