本发明公开了一种锌基生物医学材料表面的生物相容性Mg-P涂层及其制备方法和用途。该方法首先对锌和锌合金进行表面预处理，然后在恒定温度下浸泡在磷酸盐溶液中，通过化学液相沉积(CLD)形成Mg-P涂层。采用CLD方法实现了对涂层成分、厚度和表面形貌的控制。该生物相容性Mg-P涂层厚度为0.5 μm ~ 50 μm，致密均匀，主要成分为锌-磷酸镁-磷酸和少量磷酸锌。

A biocompatible Mg—P coating on the surface of a zinc-based biomedical material, and a preparation method and use thereof are disclosed. In the method, zinc and a zinc alloy are first subjected to surface pretreatment and then soaked in a phosphate solution at a constant temperature to form the Mg—P coating through chemical liquid deposition (CLD). The control on the composition, thickness and surface morphology of the coating is realized by using the CLD method. The biocompatible Mg—P coating has a thickness of 0.5 μm to 50 μm, is dense and uniform, and comprises a main component of zinc-magnesium-phosphate and a small amount of zinc phosphate.