针对钛及钛合金用于生物医用材料所表现的生物活性不够高的问题,选用多孔钛为基体利用仿生矿化法在其表面制备HA钙磷涂层,得到Ti/HA钙磷涂层复合材料,分析不同表面前处理对涂层形貌的影响,并对涂层的表面形貌、组成和微观结构进行系统分析和表征.再通过模拟体液(SBF)体外浸泡实验对Ti/HA复合材料和多孔钛的生物活性进行研究.结果表明,经前处理后的多孔钛在模拟体液中能诱导羟基磷灰石生成,表现出良好的生物活性.且经沉积液浸泡后的多孔钛的生物活性更高.%In order to solve the problem that the biological activity is not high enough w hen ti-tanium and titanium alloy used in biomedical materials ,The hydroxyapatite calcium phos-phate coating was prepared by using biomimetic mineralization on the surface of porous tita-nium .And analyze the effects of different surface pretreatments on the morphology of the coating and the surface morphology ,composition and microstructure of the coating were sys-tematically analyzed and characterized .The bioactivity of Ti /HA composites and porous ti-tanium was investigated by simulating body fluid(SBF)immersion experiments .The results showed that the pre-treated porous titanium could induce the formation of hydroxyapatite in simulated body fluids and showed good biological activity .And the biological activity of the porous titanium after immersion in the sediment is higher .
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