【摘要】 用电化学方法研究了乳化剂ＯＰ在１．０ｍｏｌ／Ｌ盐酸中对２０＃碳钢的缓蚀作用．发现ＯＰ是一种混合控制型的缓蚀剂，对阴极反应产生表面覆盖效应，而对阳极反应产生负催化效应；微量的ＯＰ与有机胺（ＯＡ）具有良好的协同缓蚀效应更多还原

【Abstract】 The corrosion inhibition of OP on 20 # carbon steel in 1.0 mol/L HCl solution was investigated with electrochemical techniques.The result showed that OP is an inhibitor of mixed controlling type,which decreases the cathodic reaction by blocking effect but negative catalytic effect on anodic reaction.It was also found that there is excellent synergistic inhibition effect between OP and arganic amine.更多还原