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| 多道富锌基涂层在NaCl溶液中的电化学行为研究 | |
| 引用本文： | 谢德明,童少平,胡吉明,郑奕,王建明,张鉴清.多道富锌基涂层在NaCl溶液中的电化学行为研究[J].金属学报,2004,40(7):749-753. |
| 作者姓名： | 谢德明 童少平 胡吉明 郑奕 王建明 张鉴清 |
| 作者单位： | 1. 浙江大学热能工程研究所,杭州,310027 2. 浙江大学环境科学研究所,杭州,310029 3. 浙江大学化学系,杭州,310027 4. 浙江大学化学系,杭州,310027;中国科学院金属研究所金属腐蚀与防护国家重点实验室,沈阳,110016 |
| 基金项目： | 国家重点基础研究发展规划项目G19990650，国家自然科学基金项目50201015资助 |
| 摘 要： | 多道富锌基涂层的电化学行为研究表明,涂层中的Zn粉未表现出明显的阴极保护作用,即使在富锌涂层上覆盖几个微米厚的环氧清漆涂层, Zn的阴极保护作用也会变得非常微弱. Zn粉对钢铁的保护作用在于Zn粉腐蚀产物对涂层的“自修复能力”.在环氧清漆覆盖条件下,无机富锌涂层中Zn粉的反应活性比有机富锌涂层中Zn粉的高,即Zn粉的反应速度更快. |
| 关 键 词： | 富锌漆 环氧涂层 多道涂层 电化学阻抗谱 阴极保护 |
| 文章编号： | 0412-1961(2004)07-0749-05 |
| 收稿时间： | 2003-07-10 |
| 修稿时间： | 2003-10-13 |
STUDY OF THE ELECTROCHEMICAL BEHAVIORS OF THE ZINC--RICH PAINTS BASED MULTILAYER ORGANIC COATINGS IN NaCl SOLUTION |
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| XIE Deming,TONG Shaoping,HU Jiming,ZHENG Yi,WANG Jianming,ZHANG Jianqing.STUDY OF THE ELECTROCHEMICAL BEHAVIORS OF THE ZINC--RICH PAINTS BASED MULTILAYER ORGANIC COATINGS IN NaCl SOLUTION[J].Acta Metallurgica Sinica,2004,40(7):749-753. | |
| Authors: | XIE Deming TONG Shaoping HU Jiming ZHENG Yi WANG Jianming ZHANG Jianqing |
| Affiliation: | Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310029 |
| Abstract: | The electrochemical behaviors of the zinc-rich paints based multilayer organic coatings in 3.5% NaCl solution were studied. The results show that the zinc powder has a minor cathodic protection effect. The protection effect is due to the repair of holes by the corrosion product of zinc powder. Under the epoxy topcoat, the corrosion rate of the zinc powder in inorganic zinc-rich coatings is faster than that in organic type. |
| Keywords: | zinc-rich paint epoxy coating multi-layer coating electrochemical impedance spectroscopy cathodic protection |
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