表面技术2013，Vol.42Issue(3)：33-37,5.
氟钛酸改性复合有机硅烷钝化膜及膜层性能研究
The Fluorine Titanate Modified Organic Silanes Passivation Film and It's Properties for Galvanized Steel Surface Coating
摘要
Abstract
The chrome-free passivation film was made from mixed silane KH858 and KH580 modified by fluorine titanate,which was coated on the surface of hot dip galvanized steel following drying and curing.The thickness,adhesion,hardness of film were tested; The neutral salt spray testing was done to research the resistance to chemical corrosion of the passive film.The anti-electrochemical resistance of the surface film was characterized by using Tafel polarization curves and electrochemical impedance spectrum techniques.The results showed that the average film thickness was 5.2 μm,the film stripped area was 3％ and the film hardness was 3H,which may meet with the national standard and industrial production requirements.Furthermore,the film's anti-corrosion to chemistry and electrochemistry was excellent.The performance of organic silane composite passivation film modified by fluorine titanate was obviously better than the film without any modification.关键词
镀锌钢板/氟钛酸/有机硅烷/钝化膜/耐腐蚀性能Key words
hot dip galvanized steel/ fluorine titanate/ organic silane/ passivation film/ anti-corrosion resistance分类
矿业与冶金引用本文复制引用
田飘飘,张振海,徐丽萍,杨兴亮,张千峰..氟钛酸改性复合有机硅烷钝化膜及膜层性能研究[J].表面技术,2013,42(3):33-37,5.基金项目
科技部863计划新材料研究专题(2009AA032529) （2009AA032529）
