摘要
采用干湿循环试验,线性极化(LPR),电化学阻抗谱(EIS)以及扫描电子显微镜(SEM)方法研究有机羧酸胺(ZX)与Ca(NO_(2))_(2)在3.5%NaCl饱和Ca(OH)_(2)溶液中对碳钢的阻锈效果。试验结果表明,在溶液中加入阻锈剂0.2%~1.2%时,有机羧酸胺与Ca(NO_(2))_(2)均有抑制碳钢锈蚀的作用,但在干湿循环试验中Ca(NO_(2))_(2)的阻锈效果与其含量不成比例关系,而ZX与其含量有良好的相关性。此外,在电化学试验中,随着ZX与Ca(NO_(2))_(2)含量的增加,阻锈效果越明显,且在3.5%NaCl饱和Ca(OH)_(2)溶液中ZX的阻锈效果优于Ca(NO_(2))_(2)。
The inhibition effect of a composite organic compound(ZX)on the corrosion of carbon steel in 3.5%NaCl saturated with Ca(OH)_(2)solution was investigated by dry and wet cycle experiments,scanning electron microscopy(SEM)measurements,liner polariza tion resistance(LPR)measurements and electrochemical impedance spectroscopy(EIS)experiments,it is found that the rust resistance effect increases with the increase of concentration of inhibitors.ZX functions as more effective inhibitor than Ca(NO_(2))_(2)in the weight fraction range of 0.2%~1.2%and its stability were better than Ca(NO_(2))_(2).
作者
马麒
蔡景顺
穆松
周霄骋
刘加平
刘建忠
MA Qi;CAI Jingshun;MU Song;ZHOU Xiaocheng;LIU Jiaping;LIU Jianzhong(State Key Laboratory of High Performance Civil Engineering Matereials,Nanjing 211100,China;Jiangsu Sobute New Materials Co.,Ltd.,Nanjing 211103,China;College of Materials Science and Engineering,Southeast University,Nanjing 211189,China)
出处
《混凝土》
CAS
北大核心
2021年第3期66-70,共5页
Concrete
基金
国家重点研发计划项目(2017YFB0309904)
国家自然科学基金:NSFC-山东联合基金项目(U1706222)
国家自然科学基金青年基金项目(51908254)
江苏省自然科学基金资助项目(BK20171111,BK20181127)
江苏省重点研发计划课题(BE2017158)。
关键词
电化学
有机羧酸胺
阻锈剂
SEM
碳钢
electrochemical
composite organic compound
inhibitors
SEM
carbon steel
