在纯钛基体表面通过电泳沉积的方法制得壳聚糖/羟基磷灰石(CS/HA)复合涂层,然后将复合涂层烧结形成多孔HA涂层.采用SEM对多孔 HA涂层的形貌进行观察,XRD分析涂层的物相组成,粘结-拉伸实验测定涂层与基体的结合强度,1.5倍人体模拟体液(1.5SBF)浸泡测定涂层的生物活性.结果表明:当悬浮液中CS与HA质量比为1:1时,制得的CS/HA复合涂层经过700℃烧结处理,涂层中CS热分解致孔形成多孔HA涂层,孔径在10～25μm,涂层与基体的结合强度可达19.5 MPa;在1.5SBF中浸泡5天后,多孔HA涂层表面完全碳磷灰石化,呈现较好的生物活性.
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