咪唑啉季铵盐对Q235钢在盐酸溶液中的缓蚀性能

中国腐蚀与防护学报

2008, Vol. 28

Issue (5): 291-295

论文

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咪唑啉季铵盐对Q235钢在盐酸溶液中的缓蚀性能

燕音;刘瑞泉;王献群;朱丽琴

新疆大学化学化工学院

Synthesis of two Quaternary Ammonium Imidazolines and Study on their Inhibition Action and Adsorption Behaviors on A3 Steel in Hydrochloric Solution

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摘要: 合成了苯乙酸咪唑啉季铵盐（PAIPI）和萘乙酸咪唑啉季铵盐（NAIPI），通过失重法、电化学方法研究了两者在1 mol/L HCl中对Q235钢的缓蚀性能，并探讨了其在Q235钢表面的吸附行为。结果表明，两者在1 mol/L HCl中对Q235钢均为阳极型缓蚀剂，其中NAIPI对Q235钢的缓蚀性能优于PAIPI；两者在Q235钢表面均是单层吸附，属于物理吸附.

关键词 ：咪唑啉季铵盐, 缓蚀剂, Q235钢铁

Abstract：Two imidazolinyl intermediates are prepared from phenylacetic acid, α-naphthylacetic acid and diethylenetriamine firstly, and then they react with the solution of sodium chloroacetate into two imidazolinyl quaternary ammonium salts(PAIPI and NAIPI). Their influence on the inhibition of corrosion of A3 steel in 1 mol/L HCl solution is studied by weight loss and electrochemical techniques. The obtained results show that the two compounds are good inhibitors for A3 steel in 1 mol/L HCl . But the inhibition efficiency of NAIPI is better than PAIPI and Two imidazolinyl quaternary ammonium salts are anode-type corrosion inhibitors. The adsorption of two imidazolinyl quaternary ammonium salts on A3 steel is studied from the results of the electrochemical technique, and the experimental results reveal that adsorption of two imidazolinyl quaternary ammonium salts on A3 steel surface is monolayer and belongs to physical absorption.

Key words： quaternary ammonium imidazoline inhibitor A3 steel 1 mol/L HCl

收稿日期: 2007-01-08

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引用本文:

燕音; 刘瑞泉; 王献群; 朱丽琴 . 咪唑啉季铵盐对Q235钢在盐酸溶液中的缓蚀性能[J]. 中国腐蚀与防护学报, 2008, 28(5): 291-295 .
. Synthesis of two Quaternary Ammonium Imidazolines and Study on their Inhibition Action and Adsorption Behaviors on A3 Steel in Hydrochloric Solution. J Chin Soc Corr Pro, 2008, 28(5): 291-295 .

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2008/V28/I5/291

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