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摘要：本文以喹啉硫酸氢根离子和喹啉硫酸根液体为缓蚀剂，拟通过静态挂片实验研究此离子液体在HCl溶液中对钢片的缓释性能，探索离子液体的选择和离子液体浓度的选择对缓蚀效果的影响。实验结果表明，喹啉硫酸根对1mol/LHCl溶液中的钢缓蚀作用较为显著,且离子液体浓度为15mmol/L 时,缓蚀效果最好。离子液体浓度对铝箔的腐蚀效果有重要影响。离子液体浓度的增加，对金属缓蚀的速率存在的现象为先增强后降低，表面稀盐酸对该缓蚀剂有协同增强效应，离子液体浓度较小时，缓蚀效率变化显著。高温离子液体仍表现出良好的腐蚀缓蚀剂性质，离子液体在铝箔上吸附符合L.angmuir公式，分析结果与实验测量值基本一致。48127
毕业论文关键词： 离子液体；缓蚀剂；盐酸；钢片
Study on corrosion inhibition performance of ionic liquids
Abstract: In this paper, quinoline hydrogen sulfate and sulfate in liquid quinoline as a corrosion inhibitor, this quasi experimental study ionic liquids through the static coupon in HCl solution for sustained performance of steel, explore options and an ionic liquid concentration of ionic liquids selection on the inhibition effect. Experimental results show that the quinoline sulfate of 1mol / LHCl solution steel corrosion inhibition is more significant, and the ionic liquid concentration of 15mmol / L, the inhibition effect is best. Ionic liquid concentration has an important influence on the corrosion effects of aluminum foil. Increasing the ionic liquid concentration, the presence of metal corrosion rate of reinforcing phenomenon after the first decrease, the surface with dilute hydrochloric acid corrosion inhibitor synergistic enhancement effect is small ionic liquid concentration, the inhibition efficiency varies significantly. High-temperature ionic liquids still exhibit good corrosion inhibitor properties of ionic liquids adsorbed on aluminum foil in line with L.angmuir formula, the results with the experimental values are basically the same.
KeyWords: Ionic liquid；corrosion inhibitor；hydrochloric acid；steel sheet
目 录
1 文献综述 2
1.1 课题选择意义和研究背景 2
1.2 金属腐蚀 2
1.2.1 金属腐蚀的定义 2
1.2.2 金属腐蚀的类型 3
1.2.3 金属钝化成膜理论 3
1.3 缓蚀剂 4
1.3.1 缓蚀剂的定义 4
1.3.2 缓蚀剂的分类 4
1.3.3 缓蚀反应的作用机理 7
1.3.4 缓蚀反应的影响因素 8
1．4离子液体 8
1.4.1 离子液体概述 8
1.4.2 离子液体对金属的保护 9
1.4.3 离子液体作为缓蚀剂的研究意义 12
2 实验部分 12
2.1 实验试剂及物性常数 12
2.2 实验仪器 13
2.3 实验方法 13
2.3.1 实验预处理 13
2.3.2 喹啉硫酸氢根离子液体的制备 13
2.3.3 失重法