硫酸介质中具表面活性噻唑衍生物的缓蚀性能研究  

Corrosion inhibition of benzothiazole derivative with surface-active in sulphuric acid solution

作　　者：陈肖杰 胡志勇 朱海林 马雪梅 王京宝 万祎 李军 曹端林 CHEN Xiao-jie;HU Zhi-yong;ZHU Hai-lin;MA Xue-mei;WANG Jing-bao;WAN Yi;LI Jun;CAO Duan-lin(School of Chemical Engineering and Technology,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学化学工程与技术学院

出　　处：《应用化工》2019年第11期2555-2558,2562,共5页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(51701188);山西省自然科学基金(201801D221088)

摘　　要：研究了一种具表面活性噻唑衍生物(BTC6T)在0.5 mol/L硫酸溶液中对45^#碳钢的缓蚀性能。通过表面张力法研究其在硫酸溶液中的表面活性;通过静态失重实验、动电位极化曲线、交流阻抗谱等方法考察了其在H2SO4中对45^#碳钢的缓蚀性能。结果表明,在0.5 mol/L H2SO4中,具表面活性噻唑衍生物(BTC6T)比2-巯基苯并噻唑(MBT)对45^#碳钢具有更好的缓蚀性能,在20℃下,当BTC6T添加量为0.50 mmol/L时,缓蚀率可达96.84%。Corrosion inhibition of the benzothiazole derivative with surface activity(BTC6T) for 45^# carbon steel in 0.5 mol/L sulphuric acid solution was studied.Surface activity of BTC6T was investigated through surface tension method,and the corrosion inhibition efficiency for 45^# carbon steel in sulphuric acid solution was measured using weight loss,potentiodynamic polarization and electrochemical impedance spectroscopy(EIS) methods.The result shows that the benzothiazole derivative(BTC6T) have better corrosion inhibition performance than 2-mercaptobenzothiazole(MBT) for 45^# carbon steel in 0.5 mol/L H2SO4.The corrosion inhibition rate is up to 96.84% at 20 ℃ while the amount of BTC6T is 0.50 mmol/L.

关 键 词：表面活性 苯并噻唑衍生物 缓蚀性能 碳钢 硫酸 

分 类 号：TQ254[化学工程—有机化工]