文章摘要
刘晶,张光华,郭杜凯,张万斌,杨冬冬,罗杰,倪美乐.三嗪基聚醚双子咪唑啉缓蚀剂的合成及实验分析[J].精细化工,2021,38(2):
三嗪基聚醚双子咪唑啉缓蚀剂的合成及实验分析
Synthesis and experimental analysis of a new triazine polyether gemini imid-azoline inhibitor
投稿时间:2020-08-03  修订日期:2020-10-14
DOI:
中文关键词: 合成  腐蚀  电化学  吸附  咪唑啉  三嗪
英文关键词: synthesis  corrosion  electrochemistry  adsorption  imidazoline  triazine
基金项目:国家自然科学基金项目、陕西省重点研发计划项目、陕西省教育厅项目
作者单位E-mail
刘晶 陕西科技大学 lj1663757383qq@163.com 
张光华 陕西科技大学  
郭杜凯 中石油长庆油田分公司气田开发事业部  
张万斌 陕西科技大学  
杨冬冬 陕西科技大学  
罗杰 陕西科技大学  
倪美乐 陕西科技大学  
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中文摘要:
      以三聚氯氰为母体,分别引入一个长的聚醚链和两个油酸咪唑啉结构,既保证了良好的缓蚀性能,又增加了水溶性,设计合成了一种将多类有效缓蚀基团汇聚于一个结构中的新型缓蚀剂2,4-二油酸基咪唑啉-6-甲氧基聚乙二醇-1,3,5-三嗪(IPT)。通过失重、电化学技术、接触角、原子力显微镜(AFM)等手段测试了对Q235钢在1mol/L盐酸中的缓蚀性能,并分析了其作为缓蚀剂的缓蚀机理。所有结果均表明,IPT在1mol/L HCl中对Q235钢表现出优异的缓蚀效果,即使在70℃时,仍能保证在Q235钢表面稳定的吸附。除此之外,该缓蚀剂优化了传统咪唑啉类缓蚀剂的溶解度问题,缓蚀效果显著,具备良好的应用前景。
英文摘要:
      In this paper, cyanuric chloride is used as the matrix, and a long polyether chain and two imidazoline oleic acid structures are introduced, which not only ensure good corrosion inhibition performance, but also increase water solubility, then, a new inhibitor, 2, 4-dioleate imidazoline 6-methoxypeg-1,3, 5-triazine (IPT) was designed and synthesized that aggregate multiple effective corrosion inhibiting groups into a single structure. The corrosion inhibition performance of Q235 steel in 1mol/L hydrochloric acid was tested by means of weight loss, electrochemical technology, contact angle and AFM. All the results show that IPT has excellent corrosion inhibition effect on Q235 steel in 1mol/L HCl, and it can maintain a good corro-sion inhibition effect in the range of 30~70 ℃, and it is less affected by temperature, even can still ensure stable adsorption on the surface of Q235 steel at 70 ℃. The adsorption of IPT molecules on the surface of Q235 steel conforms to Langmuir isothermal adsorption. The adsorption process is a self-releasing heat process mainly based on chemical adsorption. The hydrophobic chains of the IPT inhibitor's gemini struc-ture are aligned to form a neat and dense hydrophobic barrier. The hydrophilic end helps increase the wa-ter solubility of IPT, optimizes the solubility of traditional imidazoline corrosion inhibitors, and can block H pairs in acidic solutions corrosion of metal surfaces has good application prospects.
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