期刊文献+

豆粕提取物在盐酸中对Q235钢的缓蚀性能

Inhibition Effect of Soybean Meal Extract on Corrosion of Q235 Steel in Hydrochloric Acid Medium
收藏 分享 导出
摘要 采用失重法、极化曲线、电化学阻抗谱、扫描电子显微镜等方法研究了豆粕提取物(SME)作为植物缓蚀剂对Q235钢的缓蚀性能。结果表明,缓蚀剂在25~90℃范围内,随着温度升高,缓蚀效率先升高后降低。在温度为40℃,缓蚀剂浓度为0.8 g/L时,缓蚀效率达到92%。缓蚀剂对阳极和阴极都有抑制作用,属于混合型缓蚀剂。缓蚀剂分子在Q235钢表面的吸附符合Langmuir等温吸附模型,既有化学吸附也有物理吸附。 The inhibition effect of soybean meal extract(SME) on the corrosion of Q235 carbon steel in 1 mol/L HCl solution was investigated by weight loss method, potentiodynamic polarization curve measurement, electrochemical impedance spectroscopy and scanning electron microscope. The inhibition efficiency increased and then decreased with the increasing temperature in the range of 25~90 ℃. With a dose of 0.8 g/L SME, the inhibition efficiency was 92% at 40 ℃, and the SME acted as a mixed-type inhibitor. The adsorption of SME on Q235 steel accorded with Langmuir isothermal equation, and including chemical and physical adsorption.
作者 王霞 任帅飞 张代雄 蒋欢 古月 WANG Xia;REN Shuaifei;ZHANG Daixiong;JIANG Huan;GU Yue(School of Material Science and Engineering, Southwest Petroleum University, Chengdu 610500, China)
出处 《中国腐蚀与防护学报》 CAS CSCD 北大核心 2019年第3期267-273,共7页 Journal of Chinese Society For Corrosion and Protection
基金 国家自然科学基金(51774242).
关键词 豆粕 植物缓蚀剂 Q235钢 动电位极化曲线 电化学阻抗谱 soybean meal plant corrosion inhibitor Q235 steel polarization curve electrochemical impedance spectroscopy
作者简介 通讯作者:王霞,女,1966年生,教授E-mail: swpi_wx@ 126.com,研究方向为油气田材料防腐与检测.
  • 相关文献

参考文献7

二级参考文献74

共引文献35

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈