采用电化学方法研究了一种绿色缓蚀剂(2-巯基-5-邻取代苯基-1,3,4噻二唑)对2024铝合金的缓蚀作用.并采用量子化学半经验算法对该缓蚀剂进行了几何全优化.结果表明,该缓蚀剂能有效抑制铝合金点蚀,缓蚀效率达92％,是混合型缓蚀剂；该缓蚀剂是以活性中心优先吸附的方式与铝合金作用.
The corrosion inhibition of an environment-friendly inhibitor (2-thiol-5-o-tolyl-1,3,4-thiadiazole) on 2024aluminum alloy was studied by electrochemical method.The structure and orbital energy of the thiadiazole molecule was evaluated by quantum chemical semi-empirical method.The results show that the inhibitor can effectively decrease the rate of corrosion.The inhibition efficiency of the thiadiazole is up to 92％ and the thiadiazole is a mixed type inhibitor.The inhibition mechanism is that the inhibitor reacts with aluminum alloy by adsorbing on the active centers.
参考文献
| [1] | 王成,江峰,林海潮,余刚,丁晖.无机成膜型缓蚀剂对铝合金缓蚀作用的研究[J].腐蚀与防护,2000(12):539-541. |
| [2] | 张云霞,闫永贵,苏策,马力.缓蚀剂对2024铝合金在海水中缝隙腐蚀行为的影响[J].腐蚀科学与防护技术,2010(01):57-60. |
| [3] | 梅平,施汉荣,张引,艾俊哲.噻唑类缓蚀剂QADT的合成及缓蚀性能研究[J].油气田环境保护,2011(04):14-16. |
| [4] | 梁平,张云霞.铝合金海水缓蚀剂研究进展[J].腐蚀与防护,2010(09):737-740. |
| [5] | Carla Gouveia-Caridade;M. Isabel S. Pereira;Christopher M. A. Brett .Electrochemical noise and impedance study of aluminium in weakly acid chloride solution[J].Electrochimica Acta,2004(5):785-793. |
| [6] | E.M. Sherif;Su-Moon Park .2-Amino-5-ethyl-1,3,4-thiadiazole as a corrosion inhibitor for copper in 3.0% NaCl solutions[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2006(12):4065-4079. |
| [7] | 朱芳坤,范迎宾,曲黎,范文秀.2-十二烷基二硫代-4-苯基-1,3,4-噻二唑-5-硫酮的合成及抗腐蚀研究[J].河南科技学院学报（自然科学版）,2009(01):63-65,76. |
| [8] | 于萍,罗运柏.改性噻二唑有机铜缓蚀剂性能的研究[J].材料保护,1997(10):6. |
| [9] | 高立新,张大全,陆柱,庞学良.含苯并三唑和噻二唑单元的铜缓蚀剂制备和缓蚀作用[J].华东理工大学学报(自然科学版),2001(01):84-88. |
| [10] | 朱丽琴,刘瑞泉,王吉德.噻二唑衍生物在3%NaHCO3溶液中对Cu的缓蚀作用[J].中国腐蚀与防护学报,2006(02):125-128. |
| [11] | M. Behpour;S.M. Ghoreishi;N. Mohammadi;N. Soltani;M. Salavati-Niasari .Investigation of some Schiff base compounds containing disulfide bond as HCl corrosion inhibitors for mild steel[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2010(12):4046-4057. |
| [12] | El-Sayed M. Sherif;R.M. Erasmus;J.D. Comins .Inhibition Of Copper Corrosion In Acidic Chloride Pickling Solutions By 5-(3-aminophenyl)-tetrazole As A Corrosion Inhibitor[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2008(12):3439-3445. |
| [13] | Weihua Li;Qiao He;Changling Pei;Baorong Hou .Experimental and theoretical investigation of the adsorption behaviour of new triazole derivatives as inhibitors for mild steel corrosion in acid media[J].Electrochimica Acta,2007(22):6386-6394. |
| [14] | Weihua Li;Lichao Hu;Shengtao Zhang;Baorong Hou .Effects of two fungicides on the corrosion resistance of copper in 3.5% NaCl solution under various conditions[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2011(2):735-745. |
| [15] | 王成.钼酸铵对LY12铝合金的缓蚀作用[J].腐蚀与防护,2001(03):115-117,121. |
| [16] | 王成,江峰,林海潮,余刚,丁晖.无机成膜型缓蚀剂对铝合金缓蚀作用的研究[J].腐蚀与防护,2000(12):539-541. |
| [17] | 曾涵,赵淑娴.几种咪唑类缓蚀剂对铜的缓蚀作用机理初步分析[J].新疆师范大学学报（自然科学版）,2007(01):62-65. |
| [18] | Sherif ESM;El Shamy AM;Ramla MM;El Nazhawy AOH .5-(phenyl)-4H-1,2,4-triazole-3-thiol as a corrosion inhibitor for copper in 3.5% NaCl solutions[J].Materials Chemistry and Physics,2007(2/3):231-239. |
| [19] | M. Mahdavian;S. Ashhari .Corrosion inhibition performance of 2-mercaptobenzimidazole and 2-mercaptobenzoxazole compounds for protection of mild steel in hydrochloric acid solution[J].Electrochimica Acta,2010(5):1720-1724. |
| [20] | Ying Yan;Weihua Li;Lankun Cai;Baorong Hou .Electrochemical and quantum chemical study of purines as corrosion inhibitors for mild steel in 1 M HCl solution[J].Electrochimica Acta,2008(20):5953-5960. |
| [21] | Amalanathan, M.;Rastogi, V.K.;Hubert Joe, I.;Palafox, M.A.;Tomar, R. .Density functional theory calculations and vibrational spectral analysis of 3,5-(dinitrobenzoic acid)[J].Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy,2011(5):1437-1444. |
| [22] | Gobinath, E.;Xavier, R.J..Quantum chemical calculations, vibrational studies, HOMO-LUMO and NBO/NLMO analysis of 2-bromo-5-nitrothiazole[J].Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy,2013:394-402. |
| [23] | Karpagavalli Ramji;Darran R. Cairns;S. Rajeswari .Synergistic Inhibition Effect Of 2-mercaptobenzothiazole And Tween-80 On The Corrosion Of Brass In Nacl Solution[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2008(15):4483-4493. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%