| 3种双咪唑啉季铵盐对Q235钢在盐酸溶液中的缓蚀性能及吸附行为 |
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| 引用本文： | 董莹,刘瑞泉.3种双咪唑啉季铵盐对Q235钢在盐酸溶液中的缓蚀性能及吸附行为[J].材料保护,2010,43(6). |
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| 作者姓名： | 董莹 刘瑞泉 |
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| 作者单位： | 新疆大学化学化工学院,新疆,乌鲁木齐,830046;新疆大学化学化工学院,新疆,乌鲁木齐,830046 |
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| 摘 要： | 咪唑啉类缓蚀剂缓蚀性能优异,应用前景广阔。目前对双咪唑啉缓蚀剂在金属表面吸附行为的研究未见报道。合成了3种双咪唑啉季铵盐CABI,BABI,SABI,用红外光谱表征了其结构,并用失重法和电化学方法研究了其在1mol/LHCl溶液中对Q235钢的缓蚀性能和吸附行为。结果表明:3种双咪唑啉季铵盐在1mol/LHCl介质中对Q235钢都具有良好的缓蚀性能,且用量少;较高温度(50～80℃)下的缓蚀效率达90%以上,其缓蚀能力大小顺序为CABI>BABI>SABI,均属于阴极型缓蚀剂;在Q235钢表面的吸附过程为放热过程,吸附行为服从Langmuir吸附等温式,主要为化学吸附。
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| 关 键 词： | 缓蚀剂 双咪唑啉季铵盐 Q235钢 盐酸 缓蚀性能 吸附行为 |
Inhibition Performance and Adsorption Behavior of Three Kinds of Bis-Imidazoline Quaternary Ammonium Salts for Q235 Steel in Hydrochloric Solution |
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| DONG Ying,LIU Rui-quan.Inhibition Performance and Adsorption Behavior of Three Kinds of Bis-Imidazoline Quaternary Ammonium Salts for Q235 Steel in Hydrochloric Solution[J].Journal of Materials Protection,2010,43(6). |
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| Authors: | DONG Ying LIU Rui-quan |
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| Affiliation: | DONG Ying,LIU Rui-quan( College of Chemistry , Chemical Engineering,Xinjiang University,Urumqi 830046,China ) |
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| Abstract: | Three kinds of bis-imidazoline quaternary ammonium salts (CABI,BABI and SABI) were synthesized,and chemical structures were characterized by means of infrared spectrometry.Their corrosion inhibition action for Q235 steel in 1 mol/L HC1 solution and their adsorption be-havior on steel therein were studied by using weight loss methods and electrochemical measurements.Results show that three kinds of bis-imidazoline quaternary ammonium salts have good inhibi-tion performance for Q235 steel in 1 mol/L HC1 solut... |
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| Keywords: | inhibitor bis-imidazoline quaternary ammonium salts Q235 steel hydrochloride inhibition performance ad-sorption behavior |
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