酸性溶液中双子表面活性剂对金属锌的缓蚀性能
Inhibition Performance of Gemini Surfactant for Znic in Acid Medium
摘 要
采用失重法和电化学方法研究了双子表面活性剂在1 mol/L HCl溶液中对锌的缓蚀性能，通过对吸附热力学和腐蚀动力学参数的计算，探讨了缓蚀机理。结果表明: \[C12-4-C12im\]Br2在盐酸溶液中对锌具有较好的缓蚀作用，是一种混合型缓蚀剂。缓蚀率随着缓蚀剂加入量的增加而增大，随着温度的升高而减小。该缓蚀剂在锌表面的吸附符合Langmuir吸附等温式，吸附过程是自发的，同时兼有物理和化学吸附。
缓蚀
吸附
gemini surfactant
corrosion inhibition
adsorption
Abstract
The adsorption and corrosion inhibition of gemini surfactant (\[C12-4-C12im\]Br2) on zinc surface in 1mol/L HCl was investigated using weight loss method and electrochemical methods. The inhibition mechanism was discussed through analysis of the adsorption thermodynamics and corrosion kinetics. The results showed that \[C12-4-C12im\]Br2 was a good inhibitor for zinc in 1 mol/L HCl, and the inhibition efficiency increased with increasing inhibitor concentration, while decreased with the increase in temperature of acid medium and \[C12-4-C12im\]Br2 acted as a mixed-type inhibitor. The adsorption mechanism of the gemini surfactant on zinc surface was found to be fitted with Langmuir adsorption model.
中图分类号 TG174.42 DOI 10.11973/fsyfh-201612008
所属栏目 试验研究
基金项目 国家自然科学基金项目（21106032）
收稿日期 2015/6/18
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备注赵地顺（1945-），教授，从事绿色催化过程、清洁化工研究
引用该论文: LIU Jing,ZHAO Di-shun,LI Jing-jing,HU Jing-jing,REN Pei-bing. Inhibition Performance of Gemini Surfactant for Znic in Acid Medium[J]. Corrosion & Protection, 2016, 37(12): 983
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参考文献
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【4】GAD A A G,HEFNY M M,SALIH S A,et al. Corrosion inhibition of zinc in HCl solution by several pyrazole derivatives[J]. Corrosion,1989,45(7):574-585.
【5】蒋金枝,孟凡桂,唐有根. 金属锌有机缓蚀剂研究进展[J]. 有色金属,2003,55(1):21-24.
【6】唐善法,刘忠运,胡小冬. 双子表面活性剂研究与应用[M]. 北京:化学工业出版社,2011:22.
【7】朱沛沛,侯韬,雷杰,等. 阳离子Gemini表面活性剂的合成及应用研究综述[J]. 中国洗涤用品工业,2013(5):60-65.
【8】孙玉海,董宏伟,冯玉军,等. 系列阳离子双子表面活性剂的合成及其表面活性的研究[J]. 化学学报,2006,64(18):1925-1928.
【9】李俊,赵景茂. Gemini表面活性剂作为金属缓蚀剂的研究进展[J]. 腐蚀与防护,2011,32(7):543-547.
【10】MEI Y,KATHRIN S,ANJA-VERENA M. Bis-cationic ionic liquid crystals[J]. Mater Chem C,2014(2):458.
【11】RONDLA R,CHING-KUAN L,JUNG-TANG L,et al. Symmetrical 1,3-dialkylimidazolium based ionic liquid crystals[J]. J Chin Chem Soc,2013,60:321-335.
【12】JASON E B,EVAN S H,CHRISTOPHER J G,et al. Synthesis and light gas separations in cross-linked gemini room temperature ionic liquid polymer membranes[J]. Membrane Science,2008,316:186-191.
【13】TU S,JIANG X H,ZHOU L M,et al. Synthesis of N-alkyl-4-(4-hydroxybut-2-ynyl) pyridinium bromides and their corrosion inhibition activities on X70 steel in 5M HCl[J]. Corrosion Science,2012,65(12):13-25.
【14】于婷婷. 咪唑类表面活性离子液体的合成及性能研究[D]. 齐齐哈尔:齐齐哈尔大学,2013.
【15】AO M Q,XU G Y,ZHU Y Y,et al. Synthesis and properties of ionic liquid-type gemini imidazolium surfactants[J]. Colloid and Interface Science,2008(326):490-495.
【16】LOTO R T,LOTO C A,FEDOTOVA T. Electrochemical studies of mild steel corrosion inhibition in sulfuric acid chloride by aniline[J]. Res Chem Intermed,2014,40(4):1501-1516.
【17】曹楚南. 腐蚀电化学原理[M]. 北京:化学工业出版社,2008.
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【19】左秀丽,舒建华,王志民,等. 高氯油田水溶液中咪唑类缓蚀剂的性能[J]. 腐蚀与防护,2015,36(2):148-176.
【20】丁其晨,陈上. 聚N-乙烯基咪唑对盐酸介质中Q235钢的缓蚀性能[J]. 中国腐蚀与防护学报,2015,35(1):55-60.
【21】OBOT I B,OBI-EGBEDI N O. Anti-corrosive properties of xanthone on mild steel corrosion in sulphuric acid:experimental and theoretical investigations[J]. Curr Appl Phys,2011,11(3):382-392.
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