表面活性剂在HCl中对钢的缓蚀协同效应  

Synergistic effect on inhibition by surfactants for steel in hydrochloric acid solution

作　　者：邓书端[1] 李向红[2] 白玮[3] 付惠[2] 木冠南[4] 

机构地区：[1]西南林学院木质科学与装饰工程学院,云南昆明650224 [2]西南林学院基础部,云南昆明650224 [3]云南民族大学化学与生物技术学院,云南昆明650031 [4]云南大学化学系,云南昆明650091

出　　处：《清洗世界》2007年第7期1-5,共5页Cleaning World

摘　　要：用失重法和电化学法研究了在1.0 mol/L HCl中阴离子表面活性剂油酸钠(SO)和非离子表面活性剂聚乙二醇辛基苯基醚(OP)对冷轧钢的缓蚀协同作用。研究结果表明,单独的SO和OP对冷轧钢具有一定的缓蚀作用,为混合型缓蚀剂,且在钢表面的吸附符合Temkin吸附模型。当两者复配后产生了明显的缓蚀协同效应,最大缓蚀率可达92%。The synergistic effect on inhibition anionic surfactant of sodium oleate （SO） and nonionic surfactant of polyethylene glycol mono - （p） octyl phenyl ether （OP） for cold rolled steel （CRS） in 1.0 mol/L HCl solution was investigated by weight- loss and polarization methods. The results showed that both SO and OP had moderate inhibitive effect on CRS corrosion, and acted as mixed -type inhibitor for cold rolled steel. The adsorption of SO （OP） on CRS surface accords with the Temkin adsorption isotherm. Incorporation of sodium SO and OP significantly improves the inhibi- tion performance, which is synergistic inhibition effect. Polarization studies show that the complex of SO with OP acts as a mixed - type inhibitor. The maximum inhibition efficiency was about 92%.

关 键 词：钢 盐酸 油酸钠 聚乙二醇辛基苯基醚 缓蚀协同效应 吸附 

分 类 号：TQ423[化学工程]