植酸在镁合金防护中的应用现状

Applied Stats of Phytic Acid in Protection of Magnesium Alloys

植酸是从谷类作物中提取的无毒有机磷酸化合物,由于它可迅速与Ca2+,Mg2+,Fe2+和Zn2+等金属离子结合形成螯合物,因此可用于金属的防护。本文综述了植酸在镁合金化学转化膜和阳极氧化上的应用。由于植酸环保而且效果好,在镁合金防护上具有较大应用前景。

Phytic acid, an innoxious and organic phosphate, is separated from cereal crops. Owing to fast reaction with many metal ions such as Ca^2＋ , Mg^2＋ , Fe^2＋ and Zn^2＋ to form chelate compounds, phytic acid can be used in protection of metals. This paper reviews the applications of phytic acid in conversion coating and anodizing on magnesium alloys. As an environmentally friendly and effective treating agent, phytic acid has a good application prospect in protection magnesium from corrosion.