热镀锌钢表面硅烷膜耐蚀性能的初步研究
CORROSION RESISTANCE OF SILANE FILMS FORMED ON HOT-DIP GALVANZIED STEELS
摘 要
将热镀锌(HDG)钢板经不同的表面处理后涂覆硅烷,研究成膜后的耐蚀性能.中性盐雾腐蚀试验和5%NaCl溶液中的电化学极化曲线测试表明:涂覆硅烷膜后,能够抑制热镀锌钢板产生白锈,涂覆前的碱处理和Ce3+盐处理能进一步提高膜层耐蚀性；硅烷膜能降低腐蚀速度,尤其是在镀锌层上经Ce3+盐处理后再涂覆硅烷成膜能够明显地抑制腐蚀过程中的阴极和阳极反应,耐蚀效果最好.
镀锌钢
表面处理
耐蚀性能
Silane film
Galvanized steel
Surface pretreatment
Corrosion resistance
Abstract
The corrosion resistance of silane films on galvanized steel sheets pretreated by defferent processes was investigated.Salt spray test and polarization curve test results showed that a silane treatment containing 5.0 vol.% vinyltrimethoxysilane could prevent hot-dip galvanized(HDG) steel sheets from white rusting and decrease corrosion rate sharply.The corrosion resistance of the silane films on HDG steel sheets pretreated in NaOH and Ce(NO3)3 solutions was further improved.The films pretreated in Ce(NO3)3 solution could remarkably restrain cathodic and anodic reactions in the corrosion process simultaneously and result in the best corrosion resistance.
中图分类号 TG178
所属栏目 试验研究
基金项目
收稿日期 2005/3/24
修改稿日期 2005/4/22
网络出版日期
作者单位点击查看
引用该论文: WU Hai-jiang,LU Jin-tang,CHEN Jin-hong. CORROSION RESISTANCE OF SILANE FILMS FORMED ON HOT-DIP GALVANZIED STEELS[J]. Corrosion & Protection, 2006, 27(1): 14～17
被引情况:
【1】李文超,张明明,乔静飞,张圣麟, "冷轧钢表面磷化膜和硅烷膜的制备与性能",腐蚀与防护 36, 334-337(2015)
【2】雷越,汤宏伟,张圣麟, "6061铝合金上硅烷膜的制备与性能",腐蚀与防护 35, 64-68(2014)
【3】李文超,张明明,雷 越,乔静飞,张圣麟, "氯化铈掺杂对6061铝合金表面硅烷膜性能的影响",腐蚀与防护 36, 832-835(2015)
【4】张圣麟,张小麟, "氧化钇掺杂对铝合金表面硅烷膜耐蚀性的影响",腐蚀与防护 32, 965-968(2011)
【5】吴海江,卢锦堂,孔纲, "热镀锌钢表面铈盐与硅烷处理后的耐蚀性能",腐蚀与防护 28, 353-355(2007)
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参考文献
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【2】Almeida E,Diamantino T C,Figueiredo M O,et al.Oxidising alternative species to chromi-um in zinc galvanized steel surface treatment.Part Ⅰ-A morphological and chemical study[J].Surface and Coatings Technology,1998,106:8-17.
【3】刘小虹,颜肖慈.镀锌层钼酸盐转化膜及其耐蚀机理[J].电镀与环保,2002,22(6):17-19.
【4】韩克平,叶向荣,方景礼.镀锌层表面硅酸盐防腐膜的研究[J].腐蚀科学与防护技术,1997,9(2):167-170.
【5】Ping H K,Kui W J.Decorative and protective coatings on zinc using rare earths[J].Trans Meta1 Fin［Ass India］,1996,5(2):83.
【6】Manov S,Lamazouere A M,Aries L.Electrochemical study of the corrosion behaviour of zinc treated with a new organic chelating inhibitor[J].Corrosion Science,2000,42:1235-1248.
【7】Aramaki K.Effects of organic inhibitors on corrosion of zinc in an aerated 0.5M NaCl solution[J].Corrosion Science,2001,43:1985-2000.
【8】Aramaki K.Preparation of chromate-free,self-healing polymer films containing sodium silicate on zinc pretreated in a cerium(Ⅲ) nitrate solution for preventing zinc corrosion at scratches in 0.5M NaCl[J].Corrosion Science,2002,44:1375-1389.
【9】D Q Zhu,W J Van Ooij.Enhanced corrosion resistance of AA 2024-T3 and hot-dip galvanized steel using a mixture of bis-［triethoxysilylpropyl］tetrasulfide and bis-［trimethoxy-silylpropyl］amine[J].Electrochimica Acta,2004,49:1113-1125.
【10】吴森纪.有机硅及其应用[M].北京:科学技术文献出版社,1990.282-285.
【11】王雪明,李爱菊,李国丽,等.硅烷偶联剂在防腐涂层金属预处理中的应用研究[J].材料科学与工程学报,2005,23(1):146-150.
【12】龙晋明,韩夏云,杨宁,等.锌和镀锌钢的稀土表面改性[J].稀土,2003,24(5):52-56.
【13】张明宗,管从胜,王威强.有机硅烷偶联剂在金属表面预处理中的应用[J].腐蚀科学与防护技术,2001,13(2):96-100.
【14】杨宁,龙晋明.稀土钝化——金属防腐蚀表面处理新技术[J].稀土,2002,23(2):60.
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