Organic-inorganic composite films were prepared by adding different amount of nano-SiO2into water soluble acrylic resin (AC) on hot-dip galvanized steel sheet. The electrochemical behavior of nano SiO2 modified acrylic resin films in 5 % NaCl solution were studied by electrochemical measurement techniques. Results indicate when there are 8% ～ 12% SiO2 in organic film, it can shows an analogous passivation propertyin anodic polarization curves, increase anodic polarization function of galvanized coating, retarde lectrode reaction more efficiently. The reason is that either SiO2 in organic film occur chemical reaction with Zn, produce stable zinc silicate compound; or as aresult of dissolve-redeposit of SiO2 in the film.
参考文献
| [1] | Xia Z B;Tu W P .Progress in waterborne coatings for metal protection(inhinese)[J].Materials Protection,2003,36:5-8. |
| [2] | Wang X Y;Wang T E.Study and apply of Silica sol building paint (inhinese)[J].Materials and Engineering,1994(04):21-23. |
| [3] | Dong S.Development of silica sol-acrylate exterior construction paint (inhinese)[J].Modern Paint and Finishing,2001(05):15-16. |
| [4] | Wang H Z;Xiong Y;Long G D .A study on the anticorrosion properties of coatings conlaining zinc by electrochemical methods(inhinese)[J].Journal of Central China Normal University(Natural Sciences),1994,28(04):520-524. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%