C12-6-C12型Gemini阳离子表面活性剂缓蚀性能与行为的研究
Inhibition Behavior of C12-6-C12 Gemini Surfactant on Cr13 Steel in HCl Solution
摘 要
利用白金板法测定了C12-6-C12型Gemini表面活性剂在25 ℃水溶液中的表面张力, 结果表明, Gemini表面活性剂在水溶液中的临界胶束浓度为0.58×10-4 mol/L, 表面张力相对于水的表面张力有极大下降。采用失重腐蚀试验法和电化学测试技术, 研究了C12-6-C12型Gemini阳离子表面活性剂对Cr13钢在25 ℃, 1 mol/L HCl溶液中的缓蚀效果, 表明该种表面活性剂在Cr13钢表面形成了单分子吸附层, 抑制了Cr13钢的腐蚀活化反应过程, 其吸附符合Langmuir吸附模型。
Cr13钢
HCl溶液
缓蚀效率
吸附
Gemini cationic surfactant
inhibition efficiency
adsorption
Abstract
The critical micelle concentration(CMC) of C12-6-C12 Gemini cationic surfactant was studied, and the results showed that the CMC of C12-6-C12 Gemini cationic surfactant was 0.58×10-4 mol/L in water solution at 25 ℃. Gemini cationic inhibitors′ corrosion behaviors on the Cr13 steel surface in 1 mol/L HCl solution at 25 ℃ were also studied by weight loss and electrochemical polarization technology. The results showed that the C12-6-C12 Gemini cationic surfactant formed monomolecular adsorption layer on Cr13 steel to prevent corrosion, and it′s adsorption followed Langmuir adsorption model.
中图分类号 TG174.42
所属栏目 试验研究
基金项目
收稿日期 2010/5/5
修改稿日期 2010/5/19
网络出版日期
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备注王佳栋, 硕士研究生,
引用该论文: WANG Jia-dong,ZHAO Yong-feng,ZUO Yu,XIONG Jin-ping. Inhibition Behavior of C12-6-C12 Gemini Surfactant on Cr13 Steel in HCl Solution[J]. Corrosion & Protection, 2011, 32(4): 276
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参考文献
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【3】Qiu L G, Xie A J, Shen Y H. The adsorption and corrosion inhibition of some cationic gemini surfactants on carbon steel surface in hydrochloric acid[J]. Corros Sci, 2005, 47:273-278.
【4】Qiu L G, Xie A J, Shen Y H. Understanding the effect of the spacer length on adsorption of gemini surfactants onto steel surface in acid medium[J]. Appl Surf Sci, 2005, 246:1-5.
【5】Qiu L G, Xie A J, Shen Y H. A novel tfiazole-based cationic gemini surfaetant:Synthesis and effect on corrosion inhibition of carbon steel in hydrochloric acid[J]. Mater Chem Phys, 2005, 91:269-273.
【6】Qiu L G, Wu Y. Corrosion inhibition of steel in acidic medium by cationic gemini surfactants.in:E L Bettini(Ed.), Progress in Corrosion Research[M]. New York:Nova Science Publishers, Inc., 2007:159-185.
【7】姜霞, 吴云, 张旺, 等. Gemini表面活性剂与卤离子对钢在磷酸介质中缓蚀协同效应[J]. 安徽大学学报(自然科学版), 2009, 33(1):81-84.
【8】陈浩, 胡悦, 毛东琳, 等. 硫酸介质中Gemini表面活性剂对A3钢的吸附缓蚀性能[J]. 腐蚀科学与防护技术, 2009, 21(1):36-39.
【9】赵澎. 酞菁化合物、黄连提取物对碳钢的缓蚀作用及其量子化学研究[D]. 青岛:中国科学院海洋研究所硕士学位论文, 2005.
【10】Zhang R, Somasundaran P. Advances in adsorption of surfactants and their mixtures at solid/solution interfaces[J]. Advances in Colloid and Interface Science, 2006, 123-126:213-229.
【11】Achouri M El, Kertit S, Gouttaya H M, et al. Corrosion inhibition of iron in 1 mol/L HCl by some gemini surfactants in the series of alkanediyl-α, ω-bis-(dimethyl tetradecyl ammonium bromide)[J]. Progress in Organic Coatings, 2001, 43:267-273.
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