2-氨基苯并咪唑缩对甲基苯甲醛席夫碱的合成及缓蚀性能  

Corrosion Inhibition Behavior and Synthetic of 2-aminobenzimidazole-p-tolualdehyde

作　　者：卢爽 刘琳[1] 谢锦印 武亚琪 邢锦娟[1] LU Shuang;LIU Lin;XIE Jinyin;WU Yaqi;XING Jinjuan(College of Chemical and Material Engineering,Bohai University,Jinzhou 121013,China)

机构地区：[1]渤海大学化学与材料工程学院,锦州121013

出　　处：《材料导报》2021年第20期20195-20199,共5页Materials Reports

基　　金：国家自然科学基金资助项目(21878024);辽宁省高等学校创新团队项目(2018479-14)。

摘　　要：采用静态失重、极化曲线、交流阻抗(EIS)方法测试席夫碱自组装膜在3.5%(质量分数)NaCl溶液中对铜的缓蚀作用,考察了浓度和时间两个因素。结果表明,当浓度为15 mmol/L,组装时间为14 h时,合成的缓蚀剂缓蚀性能较好,缓蚀率可达99.89%。表面形貌分析结果表明,席夫碱化合物在铜表面形成簇状物质。拉曼光谱分析结果表明,席夫碱通过咪唑环和C=N键垂直吸附于金属表面。光学接触角测量结果表明,缓蚀剂表面不易被浸润,疏水性较好。The corrosion inhibition performance of the Schiff self-assembled film(SAM)in 3.5%NaCl solution was examined by static weight loss,pola-rization curve and electrochemical impedance spectroscopy(EIS).Two factors of concentration and time were studied,respectively.The experiment result expresses when the concentration is 15 mmol/L,the assembly time is 14 h,the corrosion inhibition efficiency is up to 99.89%.Scanning electron microscope(SEM)and atomic force microscopy(AFM)analysis show that the areatus substance form on copper surface.Roman spectroscopy(Raman)analysis reveals that corrosion inhibitors adsorb vertically on the metal surface through the imidazole ring and C=N bond.Optical contact Angle(OCA)represent that corrosion inhibitor is not easily infiltrated.

关 键 词：席夫碱 自组装膜 拉曼光谱 原子力显微镜 

分 类 号：TG174.42[金属学及工艺—金属表面处理]