采用共沉淀法一步合成了[V10O28]6-插层的Zn-Al水滑石前驱体,研究了其作为颜料对镁合金抗腐蚀保护性能的影响.同时考察了其焙烧产物对镁合金抗腐蚀保护性能的影响.采用电化学阻抗谱测试技术(EIS)跟踪分析了电解质溶液在涂层中扩散特征.研究结果表明:添加了[V10O28]6-插层的Zn-Al水滑石及其焙烧产物的环氧涂层对镁合金均较好的腐蚀??水滑石的环氧涂层的防腐效果好于焙烧产物的环氧涂层.这可能是由于水滑石焙烧后,产物吸水率增加,腐蚀介质扩散加快,从而导致涂层失效变快.
参考文献
| [1] | 王芬,康志新,李元元.镁合金表面防腐蚀处理研究[J].钛工业进展,2007(01):20-24. |
| [2] | 涂运骅,高谨.镁合金涂装体系的应用现状及研究进展[J].材料保护,2003(12):1-3,13. |
| [3] | Sinko J .[J].Progress in Organic Coatings,2001,42(3-4):267-282. |
| [4] | Jiang YF.;Guo XW.;Wei YH.;Zhai CQ.;Ding WJ. .Corrosion protection of polypyrrole electrodeposited on AZ91 magnesium alloys in alkaline solutions[J].Synthetic Metals,2003(2):335-339. |
| [5] | Sathiyanarayanan S;Azim SS;Venkatachari G .Corrosion protection of magnesium ZM 21 alloy with polyaniline-TiO2 composite containing coatings[J].Progress in Organic Coatings: An International Review Journal,2007(4):291-296. |
| [6] | Carriazo, D;Martin, C;Rives, V;Popescu, A;Cojocaru, B;Mandache, I;Parvulescu, VI .Hydrotalcites composition as catalysts: Preparation and their behavior on epoxidation of two bicycloalkenes[J].Microporous and Mesoporous Materials,2006(1/3):39-47. |
| [7] | J.K. Lin;C.L. Hsia;J.Y. Uan .Characterization of Mg,Al-hydrotalcite conversion film on Mg alloy and Cl and CO_3~(2-) anion-exchangeability of the film in a corrosive environment[J].Scripta materialia,2007(11):927-930. |
| [8] | Terry P A .[J].Chemosphere,2004,57(07):541-546. |
| [9] | Malherbe F;Forano C;Sharma B et al.[J].Applied Clay Science,1998,13(5-6):381-399. |
| [10] | 魏修宇,谭澄宇,郑子樵,李劲风,李海,李艳芬.时效对2195铝锂合金腐蚀行为的影响[J].中国有色金属学报,2004(07):1195-1200. |
| [11] | 张鉴清;曹楚南 .[J].腐蚀与防护,1998,9(03):99-105. |
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