| 热镀锌钢表面硅烷/硅酸盐复合膜的耐蚀性能研究 |
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| 引用本文： | 吴海江,卢锦堂. 热镀锌钢表面硅烷/硅酸盐复合膜的耐蚀性能研究[J]. 功能材料, 2009, 40(11) |
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| 作者姓名： | 吴海江 卢锦堂 |
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| 作者单位： | 湖南科技大学,先进材料制备与应用技术研究所,湖南,湘潭,411201;华南理工大学,材料科学与工程学院,广东,广州,510641 |
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| 摘 要： | 为了改善硅烷膜的耐蚀性,将硅烷化热镀锌钢板用硅酸钠溶液封闭后处理,获得了硅烷/硅酸盐复合膜.采用中性盐雾试验(NSS)、湿热试验、盐水全浸试验和电化学交流阻抗谱(EIS)评价了膜层的耐蚀性能.结果表明,与单一硅烷膜相比,复合膜的耐蚀性能明显提高,超过了常规铬酸盐钝化膜.尤其是在5%NaCl溶液中,复合膜的低频阻抗数值随浸泡时间的增加先增大后减小,表明其具有一定的"自修复"能力.
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| 关 键 词： | 热镀锌钢 复合膜 硅烷膜 硅酸钠 耐蚀性 |
Corrosion resistance of silane/silicate composite films on hot-dip galvanized steel |
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| WU Hai-jiang,LU Jin-tang. Corrosion resistance of silane/silicate composite films on hot-dip galvanized steel[J]. Journal of Functional Materials, 2009, 40(11) |
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| Authors: | WU Hai-jiang LU Jin-tang |
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| Affiliation: | WU Hai-jiang1,LU Jin-tang2(1. Advanced Materials Synthesis and Application Technology Laboratory,Hunan University of Science and Technology,Xiangtan 411201,China,2. School of Materials Science and Engineering,South China University of Technology,Guangzhou 510641,China) |
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| Abstract: | To improve the corrosion resistance of silane films further,the silane/silicate composite films were prepared by immersion hot-dip galvanized (HDG) steel samples in silane solution firstly and then in sodium silicate solution. The corrosion resistance of the composite films were investigated by neutral salt spray (NSS) test,humid thermic test,salt water test and electrochemical impedance spectroscopy (EIS). The results revealed that the corrosion resistance of the composite films was significantly enhanced,... |
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| Keywords: | hot-dip galvanized steel composite films silane film sodium silicate corrosion resistance |
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