摘要
以胡麻籽油、羟乙基乙二胺为原料合成咪唑啉中间体,用苄基氯进行改性,得到阳离子咪唑啉衍生物。利用FT IR对合成产物进行了表征,用静态失重法、电化学极化曲线和FESEM对其缓蚀性能进行了评价,并考察了不同缓蚀剂浓度、腐蚀浸泡时间对缓蚀效果的影响,探讨了其在A30钢表面的吸附行为。结果表明,合成的缓蚀剂在盐酸体系中对A30钢有较好的缓蚀性能,在浓度为100mg/L时对低碳钢的缓蚀效率可达87%,并且其产物为阳离子型缓蚀剂,吸附满足Langmuir等温吸附方程。最后采用量子化学方法对其缓蚀剂的缓蚀机理进行了分析。
Imidazoline intermediate was synthesized by flax seed oil and hydroxyethylethylene diamine and modified with benzyl chloride to cationic imidazoline derivative.It was characterized by FT IR,and its property of corrosion inhibition was investigated by static weight loss,electrochemical polarization curve and FESEM.The effects of inhibitor's concentration and immersion time on inhibition behavior were investigated,and adsorption behavior of inhibitor on surface of A30 steel was also discussed.The results indicated that the efficiency of as-synthesized inhibitor at concentration of 100 mg /L for A30 steel in hydrochloric acid is 87%,and the product is cationic corrosion inhibitor,the adsorptions of the compounds on A30 steel can be described by Langmuir isotherm equation.Finally,the inhibition mechanism was analyzed by quantum chemical calculation.
出处
《化学通报》
CAS
CSCD
北大核心
2014年第11期1103-1108,共6页
Chemistry
基金
国家自然科学基金项目(20475077)资助
关键词
缓蚀剂
胡麻籽油
电化学测试
量子化学
Corrosion inhibitors,Flax seed oil,Electrochemical methods,Quantum chemical calculations
