表面技术Issue(6)：82-87,6.DOI:10.16490/j.cnki.issn.1001-3660.2015.06.016
增甘膦及复配液缓蚀性能研究
Corrosion Inhibition Performance of Glyphosine and Its Mixture
陈小非 1毛礼娜 2郭康 3殷超凡 1陈启明2
作者信息
- 1. 武汉工程大学 化工与制药学院，武汉430073
- 2. 绿色化工过程教育部重点实验室，武汉430073
- 3. 湖北省新型反应器与绿色工艺重点实验室，武汉430073
- 折叠
摘要
Abstract
ABSTRACT:Objective To synthesize glyphosine and study the corrosion inhibition performance of glyphosine and its mixture. Methods Glyphosize was synthesized with phosphate, formaldehyde and glycine in acidic solution. The corrosion inhibition per-formance of LY12 alloy in glyphosine solution under acidic condition was studied by Tafel curves and electrochemical impedance spectroscopy. And glyphosine was compared with the similar phosphonic acid, i. e. , amino trimethylene phosphonic acid ( AT-MP). Besides, the corrosion inhibition performance of LY12 alloy was studied in glyphosine solution. Results When the pH=1, the mass concentration of glyphosine was 0. 5%, the corrosion inhibition rate was up to 90%. And the corrosion inhibition effect of glyphosine solution was superior to ATMP under the same acidity and the same concentration of corrosion inhibitor. The corrosion inhibition effect of glyphosine was not ideal while used alone in alkaline condition. However, when it was mixed with trolamine, the corrosion inhibition effect was preferable. When the pH=8. 7 and the built-up concentration was 0. 5% trolamine with 0. 4%glyphosine, the corrosion inhibition rate of LY12 alloy was up to 65. 5%. Conclusion The corrosion inhibition effect of glyphosine was excellent when used alone under acidic condition. Its corrosion inhibition effect was preferable when it was mixed with trola-mine under alkaline condition.关键词
增甘膦/缓蚀剂/极化曲线/电化学阻抗谱/复配Key words
glyphosine/corrosion inhibitor/polar curves/electrochemical impedance spectroscopy/complex formulation分类
矿业与冶金引用本文复制引用
陈小非,毛礼娜,郭康,殷超凡,陈启明..增甘膦及复配液缓蚀性能研究[J].表面技术,2015,(6):82-87,6.
