萃取土豆和香蕉皮中的有机成分复配制成缓蚀剂;采用失重法、极化曲线、电化学阻抗谱等方法研究了复配缓蚀剂在1mol?L-1盐酸体系中对A3碳钢的缓蚀性能;确定了缓蚀效率最高的提取物复配配方。结果表明,单一缓蚀剂和复配缓蚀剂都有一定的缓蚀性能;提取物对碳钢的缓蚀性能随浓度的增大而增大;当香蕉皮与土豆提取物复配缓蚀剂浓度为7.5mg?L-1(质量比为2)时,A3碳钢在1mol?L-1盐酸体系中的缓蚀效率达93.9%。

An inhibitor was prepared by compound organic ingredients extracted from potato and banana skin.Thecorrosion inhibition on A3steel in 1 mol?L-1 HCl solution was investigated using weight-loss test,polarizationcurves and electrochemical impedance spectroscopy(EIS).The extracted compound formula with the highestinhibition efficiency was determined.The results show that both single and compound extracts have corrosioninhibition effects.The inhibition efficiency increased with increasing the inhibitor concentration.The inhibitionefficiency in 1mol?L-1 HCl solution reached 93.9%,when the concentration of banana skin and potato extracts witha mass ratio of 2 was 7.5 mg·L-1.