电镀锌涂装性能的影响因素及改善

Influencing Factors and Improvement of Electroplating Zinc Coating Paintability

从涂装过程的润湿、吸附、扩散及化学反应等涂装界面作用机理分析了导致电镀锌涂装性能差的原因,并针对电镀锌层和有机涂料的特点,从电镀锌层结构及其表面处理两个方面介绍了目前能够有效改善电镀锌层涂装性能的一些方法,其中磷化处理是目前最成熟、应用最多的处理方式,不仅能提高涂层结合力,还能进一步提高对基体的防护性能。

This paper analyzed the reasons leading to poor performance of coating adhesive from the mechanism of coating interface, including wetting, adsorption, diffusion and chemical reactions. And aiming at the characteristics of coating and organic coatings, some methods for improving the paintability of galvanized coatings were introduced from aspects of coating structure and coating surface treatment. Phosphating treatment is the most mature and most applied method, which could not only improve the adhesion of coatings, but also improve the protective performance of the substrate.