Corresponding Author

Ning LI(lininghit@263.net)


A passivation film was prepared on tinplate surface with a composite passivating agent made of titanate and phosphate. The surface morphologies, chemical compositions and corrosion resistances of the passivation films were characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), salt spray test, Tafel polarization measurement and electrochemical impedance spectroscopy (EIS). The results were compared with those films untreated and treated with titanate or phosphate passivation. It was shown that the titanate and phosphate passivation film was mainly composed of Ti3(PO4)4·nH2O and TiO2. The finely crystallized surface could seal holes, therefore, a good passivation performance on tinplates could be achieved.

Graphical Abstract


tin plating, titanium salt, phosphate, Cr free passivation, corrosion resistance

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[1] Zhai Y F(翟运飞), Li N(李宁), Zheng Z(郑振), et al. Status and prospect of passivation for tin-plated sheet[J]. Electroplating & Pollution Control(电镀与环保), 2010, 30(5): 1-4.
[2] Xie L, Chen H X, Xie Y X. Influence of reflow processing conditions on the uniformity of the chromium passivation film on tinplate[J]. Baosteel Technical Research, 2014, 8(2): 41-45.
[3] Guo R G(郭瑞光), Geng Z L(耿志良). Some suggestions on the research of non-chromium conversion coating technology[J]. Electroplating & Finishing(电镀与涂饰), 2008, 27(5): 38-40.
[4] Guan Y(管勇), Liu J G(刘建国), Yan C W(严川伟). Study on preparing technology and corrosion resistance of Ti/Zr based chromium-free chemical conversion coating on zinc electroplating layer[J]. Journal of Electrochemistry(电化学), 2010, 16(4): 373-377.
[5] Tsai C Y, Liu J R, Chen P L, et al. A two-step roll coating phosphate/molybdate passivation treatment for hot-dip galvanized steel sheet[J]. Corrosion Science, 2010, 52(10): 3385-3393.
[6] da Silva C G, Correia A N, de Lima-Neto P, et al. Study of conversion coatings obtained from tungstate phosphoric acid solutions[J]. Corrosion Science, 2005, 47(3): 709-722.
[7] Sundermeier U, Wolpers M, Roth M, et al. Multistage pretreatment of tinplate prior to the coating thereof with lacquer: U S, 201313943111[P]. 2013-7-16.
[8] Sauer R, Marmann A, Oberhoffer H, et al. Method for passivating tinplate: US, 20150010773A1[P]. 2015-01-08.
[9] 上海丰野表面处理剂有限公司. 一种用于处理镀锡钢板的无铬钝化液:CN, 201210445665.4[P]. 2014-05-21.
[10] Yu Y C(于元春), Li N(李宁), Hu H L(胡会利), et al. Research development of non-chromate and tri-chromium passivation[J]. Surface Technology(表面技术), 2005, 34(5): 6-9.
[11] Huang X Q, Li N, Cao L X, et al. Electrodeposited lanthanum film as chromate replacement for tinplate[J]. Materials Letters, 2008, 62(3): 466-469.
[12] Liang H Y(梁红野),Chen Y Z(陈彦泽). Experimental study of passivation treatment of metal surface by phytic acid[J]. Corrosion & Protection in Petrochemical Industry(石油化工腐蚀与防护), 2004, 21(6): 5-8.
[13] Fedel M, Druart M E, Olivier M, et al. Compatibility between cataphoretic electro-coating and silane surface layer for the corrosion protection of galvanized steel[J]. Progress in Organic Coatings, 2010, 69(2): 118-125.
[14] Liu C F(柳长福), Guo Y H(郭玉华),Tu Y Q(涂元强),et al. 一种镀锡板无铬钝化液以及钝化方法: CN, 101358340A[P]. 2009-02-04.
[15] Cheng X G(成信刚), Li N(李宁), Li D Y(黎德育). Status and prospect of Cr-free passivation for tin-plated sheet[J]. Electroplating &Pollution Control(电镀与环保), 2006, 26(3): 5-9.



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