HCl溶液中N-十二烷基甘氨酸对低碳钢的缓蚀行为研究  

A Study on the Corrosion Inhibition Behavior of Mild Steel in HCl Solution by N-Dodecylglycines

作　　者：蒋馥华[1] 张萍[2] 

机构地区：[1]武汉冶金科技大学 [2]中南工业大学

出　　处：《表面技术》1996年第2期7-10,共4页Surface Technology

摘　　要：电化学方法和失重法的研究结果表明,在盐酸介质中,在临界胶束浓度(CMC)附近,N-十二烷甘氨酸对低碳钢是良好的缓蚀剂。由实验数据归纳出Frumkin吸附等温式,并认为有机物在电极上的吸附是置换吸附。在CMC附近,N-十二烷基甘氨酸在低碳钢表面形成双分子层吸附膜,从而对阳极行为和阴极行为产生较大影响。Using electrochemical and weight loss methods shows that N-Dodecylglycines are good inhibitors of mild steel in HCI solution at concentration around the critical micelle concentration (CMC). The typical experimental adsorption isotherms obtained from the efficience(η). which is equivalent to the degree of surface coverage (9). It was shown that the N-Dodecylglycines were adsorbed onto the mild steel electrode according to the Frumkin isotherm. The process was treated as a substitutional adsorption process.

关 键 词：酸性介质 低碳钢 甘氨酸 十二烷基甘氨酸 缓蚀剂 

分 类 号：TG174.42[金属学及工艺—金属表面处理]