以食物废油、对羟基二苯胺和三乙胺为原料得到咪唑啉中间体,用苯丙乳液、偶联剂和消泡剂等对其进行改性,得到稳定的咪唑啉衍生物缓蚀剂.采用红外光谱法对该咪唑啉缓蚀剂进行了分析,采用静态失重法、电化学法和扫描电子显微镜研究了其对J55钢的缓蚀行为,并探讨了其在J55钢表面的吸附行为.结果表明,该缓蚀剂为阳离子型缓蚀剂,当其质量浓度为500 mg/L时,在试验溶液中对J55钢的缓蚀率达到87.97％,且吸附满足Langmuir等温吸附方程.
An imidazoline intermediate was obtained using swill-cooked dirty oil,p-hydroxy diphenylamine and triethylamine as raw materials,and a stable imidazoline derivative corrosion inhibitor was obtained by modificaiton using styrene-acrylic emulsion,coupling agents and defoamers.FTIR was used to characterize the inhibitor,and corrosion inhibition for J55 steel was investigated by static weight loss method,electrochemical methods and SEM,and the adsorption behavior of the inhibitor on surface of J55 steel was also discussed.The results indicate that it is a cationic corrosion inhibitor,the inhibition efficiency of the inhibitor on J55 steel was up to 87.97％ when 500 mg/L was added in the test solution.The inhibitor can be described by Langmuir isotherm equation.
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