| 2,4-二氨基嘧啶对冷轧钢在HCl溶液中的缓蚀作用 |
| |
| 引用本文： | 李向红,谢小光.2,4-二氨基嘧啶对冷轧钢在HCl溶液中的缓蚀作用[J].腐蚀与防护,2016(12):949-955. |
| |
| 作者姓名： | 李向红 谢小光 |
| |
| 作者单位： | 1. 西南林业大学理学院,昆明650224;云南大学化学科学与工程学院,昆明650091;2. 云南大学化学科学与工程学院,昆明,650091 |
| |
| 基金项目： | 国家自然科学基金项目(51361027)，西南林业大学科研启动基金项目(111435)，云南省中青年学术和技术带头人后备人才项目(2015HB049) |
| |
| 摘 要： | 通过浸泡试验、电化学试验和扫描电子显微镜(SEM)观察研究了2,4-二氨基嘧啶(DAP)在1.0mol/L HCl溶液中对冷轧钢的缓蚀作用。结果表明:DAP在HCl溶液中对冷轧钢具有良好的缓蚀作用;缓蚀率随缓蚀剂含量的增大而增大,DAP浓度为10.0mmol/L时缓蚀率最大,可达94.8%;DAP为混合型抑制型缓蚀剂,DAP在冷轧钢表面的吸附符合Langmuir吸附等温式,缓蚀率随温度的升高而下降。
|
| 关 键 词： | 冷轧钢 HCl溶液 2 4-二氨基嘧啶 缓蚀 吸附 |
Corrosion Inhibition of 2,4-Diaminopyrimidine to Cold Rolled Steel in HCl Solution |
| |
| Abstract: | The corrosion inhibition of 2,4-diaminopyrimidine (DAP) to cold rolled steel (CRS) in 1.0 mol/L HCl solution was studied through immersion test,electrochemical test and scanning electron microscopy (SEM).The results show that DAP was a good inhibitor for CRS in HCl solution.The inhibition efficiency increased with the increase of the concentration of DAP,and the maximum inhibition efficiency could reach as high as 94.8％ when the concentration of DAP was 10.0 rnmol/L.DAP acted as a mixed-type inhibitor and the adsorption of DAP on the surface of cold rolled steel obeyed Langmuir adsorption isotherm.As the temperature rose,the inhibition efficiency decreased. |
| |
| Keywords: | cold rolled steel HCl solution 2 4-diaminopyrimidine (DAP) corrosion inhibition adsorption |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
