摘要
采用失重法、极化曲线法研究了咪唑啉与KI的复配缓蚀剂在4%(质量浓度,下同)柠檬酸溶液中对碳钢的缓蚀协同作用。结果表明,复配缓蚀剂可有效抑制45#碳钢在柠檬酸溶液中的腐蚀,当缓蚀剂总浓度为0.4%时,咪唑啉和KI浓度比为3:1时缓蚀效果最好。极化曲线表明该复配缓蚀剂为混合型缓蚀剂。
The mixture of imidazoline and potassium iodide as a corrosion inhibitor for carbon steel in 4% （wt） citric acid solution was investigated by weight loss test and polarization curve methods. Results show that the combined inhibitor strongly inhibits the corrosion of 45 g carbon steel in citric acid solution and the mixture with the mass ratio undecyl-N-carboxymethyl-hydroxyethy imidzoline （UHCI） ：KI of 8：1 has the best corrosion inhibition at a total concentration of 0. 4%. The polarization curves indicate that the combined inhibitor behaves as a mixed type inhibitor.
出处
《腐蚀与防护》
CAS
北大核心
2012年第12期1055-1056,1086,共3页
Corrosion & Protection
基金
上海市科委项目(10DZ2252400)
2011年上海市联盟计划
上海热交换系统节能工程技术研究中心开放基金(09SERC03)
关键词
碳钢
咪唑啉
复配
缓蚀
carbon steel
imidazoline
combination
corrosion inhibition
作者简介
通信作者：廖强强，教授，博士，liaoqql971@yahoo．com．cn
