中国电机工程学报2011，Vol.31Issue(14)：84-89,6.
氨基磺酸溶液中烷基咪唑啉与碘化钾复配对碳钢的缓蚀作用
Corrosion Inhibition of Alkyl Imidazoline in Association With KI on Carbon Steel in Amidosulphuric Acid Solution
摘要
Abstract
The mixture of 2-undecyl-N-carboxymethyl-N-hydroxyethyl imidazoline (UHCI) to KJ as a corrosion inhibitor for carbon steel in 8 % amidosulphuric acid solution was investigated by weight loss test, electrochemical methods. Results show that the combined inhibitor strongly inhibits the corrosion of 45# carbon steel in amidosulphuric acid solution and the mixture with the mass ratio (UHCI:KI) of 9:1 has the best corrosion inhibition at a total concentration of 0.4 %. The impedance spectra of carbon steel electrodes change from one time constant into two time constants when the mixture inhibitor adds into the blank solution while the polarization curves indicate that the mixture behaves as a mixed type inhibitor. The absorption of the mixture is found to follow the Langmuir adsorption isotherm and the mechanism is chemisorption.关键词
碳钢/咪唑啉/复配/交流阻抗/缓蚀分类
矿业与冶金引用本文复制引用
廖强强,陈亚琼,闫爱军,董万田,葛红花..氨基磺酸溶液中烷基咪唑啉与碘化钾复配对碳钢的缓蚀作用[J].中国电机工程学报,2011,31(14):84-89,6.基金项目
上海市重点学科建设项目(P1304) （P1304）
上海高校电力腐蚀控制与应用电化学重点实验室开放基金(09KLSU01):上海热交换系统节能工程技术研究中心开放基金(09SERC03) （09KLSU01）
上海市科委项目基金(08DZ2210800). （08DZ2210800）
