应用化学2017，Vol.34Issue(8)：877-884,8.DOI:10.11944/j.issn.1000-0518.2017.08.160398
阳离子型可聚合咪唑类离子液体-丙烯酰胺共聚物的制备及其对盐酸腐蚀碳钢缓蚀行为
Preparation of Cationic Polymerizable Imdazolium Ionic Liquid-Acrylamide Copolymers and Their Inhibition Behaviors for Carbon Steel Corrosion in Hydrochloric Acid
丁红霞 1武英 2刘正平1
作者信息
- 1. 北京师范大学化学学院,环境友好与功能高分子材料北京师范大学重点实验室
- 2. 能量存储与转化北京市重点实验室 北京 100875
- 折叠
摘要
Abstract
Cationic polymerizable imdazolium ionic liquid-acrylamide copolymers as the corrosion inhibitors were successfully prepared by copolymerization of hydrophilic polymerizable ionic liquid, 1-methyl-3-[2-[(1-oxo-2-propenyl)oxy]ethyl]imdazoliumtetrafluoroborate(ACIMBF4), with acrylamide via inverse microemulsion polymerization.Various impact factors on the inhibition of carbon steel corrosion by hydrochloric acid including the cationic degree, the relative molecular mass of the copolymer, the concentration of copolymer solution and the absorption time were investigated simultaneously, and the corrosion mitigation mechanism was also discussed preliminary.The corrosion inhibition efficiency of cationic ionic liquid-acrylamide copolymers can reach higher than 90% by forming a protective adsorption film on the carbon steel.The corrosion inhibition ability of cationic copolymer depends on not only its cationic degree but also its relative molecular mass.Moreover, the corrosion inhibition efficiency increases with the increase of the concentration of cationic poly(ionic liquid) copolymer, and then decreases when the concentration of copolymer solution is too high.Furthermore, with the extension of the adsorption time, the corrosion rate of carbon steel is reduced gradually, and remains constant after approximately 40 h, namely the absorbing capacity of inhibitor on the carbon steel reaches the maximum.关键词
阳离子型可聚合咪唑类离子液体/离子液体-丙烯酰胺共聚物/阳离子度/缓蚀剂/缓蚀机理Key words
cationic polymerizable imdazolium ionic liquid/ionic liquid-acrylamide copolymer/cationic degree/corrosion inhibitor/corrosion mitigation mechanism分类
化学化工引用本文复制引用
丁红霞,武英,刘正平..阳离子型可聚合咪唑类离子液体-丙烯酰胺共聚物的制备及其对盐酸腐蚀碳钢缓蚀行为[J].应用化学,2017,34(8):877-884,8.
