采用开路电位（OCP）、交流阻抗（EIS）和动电位极化法对热镀锌钢表面乙烯基三乙氧基硅烷膜腐蚀电化学行为进行了研究。结果表明,在3.5%NaCl溶液中,涂覆硅烷膜层的热镀锌钢与空白热镀锌钢相比,其低频阻抗值提高至少2个数量级,同时腐蚀电流密度减小1个数量级以上,乙烯基三乙氧基硅烷膜防腐蚀效果良好。
Electrochemical behavior of hot dip galvanised（HDG） steel surfaces coated with vinyltriethoxysilane（VTES） film was studied by means of open circuit potential,electrochemical impedance spectroscopy and potentiodynamic polarization.The results show that the impedance values of steel sheets coated with the VTES film increases by more than two orders of magnitude and the corrosion current density decreases by more than one order of magnitude when compared with the blank HDG steel sheets during immersion in 3.5% NaCl solution.The VTES film provides good corrosion protection for hot dip galvanised steel.
参考文献
| [1] | Trabelsi W;Triki E;Dhouibi L;Ferreira MGS;Zheludkevich ML;Montemor MF .The use of pre-treatments based on doped silane solutions for improved corrosion resistance of galvanised steel substrates[J].Surface & Coatings Technology,2006(14/15):4240-4250. |
| [2] | Montemor MF;Rosqvist A;Fagerholm H;Ferreira MGS .The early corrosion behaviour of hot dip galvanised steel pre-treated with bis-1,2-(triethoxysilyl)ethane[J].Progress in Organic Coatings: An International Review Journal,2004(3):188-194. |
| [3] | M. G. S. Ferreira;R. G. Duarte;M. R. Montemor;A. M. R. Simoes .Silanes and rare earth salts as chromate replacers for pre-treatments on galvanised steel[J].Electrochimica Acta,2004(17/18):2927-2935. |
| [4] | 邓迟,姚宁,杨晓兵,王秀红,翁杰.KH570硅烷偶联剂提高聚己内酯复合材料力学性能[J].材料热处理学报,2010(05):53-56. |
| [5] | ZHANG Xu-ming;WANG Jian-jun;LIU Chun-ming et al.Effects of cure temperature on corrosion property of vinyltriethoxysilane films on carbon steel surfaces[J].Applied Mechanics and Materials,2011,52 - $4:1947-1952. |
| [6] | Yuri Dubitsky;Antonio Zaopo;Giulio Zannoni et al.1H NMR study of the hydrolysis of vinyltrialkoxysilanes[J].Materials Chemistry and Physics,2000,64:45-53. |
| [7] | Brochier Salon, M.-C.;Belgacem, M.N. .Competition between hydrolysis and condensation reactions of trialkoxysilanes, as a function of the amount of water and the nature of the organic group[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2010(1/3):147-154. |
| [8] | Van Ooij W J;Zhu D .Electrochemical impedance spectroscopy of bis-triethoxysilypropyl tetrasulfide on AI 2024 -T3 substrates[J].Corrosion,2001,57(05):413-427. |
| [9] | Montemor MF;Trabelsi W;Zheludevich M;Ferreira MGS .Modification of bis-silane solutions with rare-earth cations for improved corrosion protection of galvanized steel substrates[J].Progress in Organic Coatings: An International Review Journal,2006(1):67-77. |
| [10] | Danqing Zhu;Wim J. van Ooij .Enhanced corrosion resistance of AA 2024-T3 and hot-dip galvanized steel using a mixture of bis-[triethoxysilylpropyl]tetrasulfide and bis-[trimethoxysilylpropyl]amine[J].Electrochimica Acta,2004(7):1113-1125. |
| [11] | M. F. Montemor;R. Pinto;M. G. S. Ferreira .Chemical composition and corrosion protection of silane films modified with CeO{sub}2 nanoparticles[J].Electrochimica Acta,2009(22):5179-5189. |
| [12] | Y.K. Song;F. Mansfeld .Development of a Molybdate-Phosphate- Silane-Silicate (MPSS) coating process for electrogalvanized steel[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2006(1):154-164. |
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