[1]林富荣,崔存凤.微溶剂法合成咪唑啉缓蚀剂及性能评价[J].常州大学学报(自然科学版),2015,(02):11-15.[doi:10.3969/j.issn.2095-0411.2015.02.003]
　LIN Fu-rong,CUI Cun-feng.Synthesis of Imidazoline Corrosion Inhibitor with Few Solvent and Its Performance Test[J].Journal of Changzhou University(Natural Science Edition),2015,(02):11-15.[doi:10.3969/j.issn.2095-0411.2015.02.003]
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微溶剂法合成咪唑啉缓蚀剂及性能评价()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2015年02期
页码:
11-15
栏目:
化学化工
出版日期:
2015-04-25

文章信息/Info

Title:
Synthesis of Imidazoline Corrosion Inhibitor with Few Solvent and Its Performance Test
作者:
林富荣; 崔存凤
(江苏省精细石油化工重点实验室(常州大学)，江苏 常州 213164)
Author(s):
LIN Fu-rong; CUI Cun-feng
(Jiangsu Key Laboratory of Fine Petrochemical Engineering,Changzhou University,Changzhou 213164,China)
关键词:
咪唑啉; 缓蚀剂; Tafel极化曲线; 复配
Keywords:
imidazoline;  corrosion inhibitor;  Tafel polarization curve;  complex
分类号:
O 626
DOI:
10.3969/j.issn.2095-0411.2015.02.003
文献标志码:
A
摘要:
以油酸和羟乙基乙二胺为原料，甲苯作溶剂，采用微溶剂法经过酰胺化和成环反应合成咪唑啉缓蚀剂(1)，又通过与氯化苄进行季铵化反应得到咪唑啉季铵盐缓蚀剂(2)，改善了水溶性。使用挂片失重法和电化学Tafel极化曲线法对缓蚀剂产品进行评价。并研究了缓蚀剂与KI复配后的缓蚀效果。结果表明，缓蚀效果随缓蚀剂浓度增加而增强，咪唑啉季铵盐的缓蚀性优于未季铵化的咪唑啉，缓蚀剂与KI复配后的缓蚀效果明显增强。极化曲线法标明咪唑啉季铵盐质量浓度为250[KG3x]mg/L，参与复配KI质量浓度为150mg/L时，其在20℃的1mol/L H2SO4腐蚀环境中的缓蚀率可达到98.2%。
Abstract:
Oil soluble imidazoline corrosion inhibitor 2-(2-Heptadec-8-enyl-4,5-dihydro-imidazol-1-yl)-ethanol was synthesized via two steps of amidation and cyclization with oilic acid and β-hydroxyethyl- enediamine as raw materials, the methylbenzene as solvent, then the Imidazoline quaternary corrosion inhibitor，which is soluble in water, was prepared through quaternary ammonium process. The property of corrosion inhibitors was strengthened with the adding of complex regent KI. The inhibition of corrosion inhibitors and its complex products were tested through the method of weight loss and Tafel polarization curve. Results showed that the increasing of the concentration of inhibitors could promote the inhibition, and the inhibiting effect of the Imidazoline quaternary is better than the oil soluble product, and the complex is obviously effective. The inhibition rate measured by polarization method reached to 98.2% when 250mg/L quaternary salt inhibitor and 150mg/L KI were added in acid media.

参考文献/References:


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更新日期/Last Update: 2015-05-20