烟柴杆提取物与碘化钾的缓蚀协同效应  

Synergistic effect of corrosion inhibition of tobacco rob extract and potassium iodide

作　　者：郭勇[1,2] 高美丹 王艳[3] 王荷芳[1] 胡荣彬[1] 

机构地区：[1]河北工业大学化工学院,天津300130 [2]中海油天津化工研究设计院,天津300131 [3]天津市质量监督检验站第四十二站,天津300384

出　　处：《工业水处理》2015年第12期57-60,共4页Industrial Water Treatment

摘　　要：研究了烟柴杆提取物在盐酸介质中对N80钢的缓蚀性能及其与碘化钾复配的协同效应。结果表明,烟柴杆提取物具有良好的缓蚀性能,与碘化钾复配后缓蚀性能进一步提高。电化学极化曲线表明,复配前后烟柴杆提取物均为混合型缓蚀剂,其作用机理为几何覆盖效应。对失重数据进行拟合,结果表明烟柴杆提取物与碘化钾复配后在N80钢表面的吸附服从Langmuir吸附等温方程。The corrosion i nhibition capacity of tobacco rob extract for N80 steel in hydrochloride solutions and its synergistic effect with potassium iodide are investigated. The results show that tobacco rob extract has excellent corrosion inhibition efficiency,and the inhibition efficiency increases further when tobacco rob extract combines with potassium iodide. From the electrochemical polarization curve,before and after the combination,the tobacco rob extract are both a kind of mixed-type corrosion inhibitor and the inhibition mechanism is geometric covering effect.By fitting the weight loss data,the result shows that after the combination of tobacco rob extract with potassium iodide,the adsorption on the surface of N80 steel obeys the Langmuir＇s adsorption isotherm equation.

关 键 词：烟柴杆提取物 碘化钾 缓蚀性能 协同效应 

分 类 号：TQ085.4[化学工程]