将纳米羟基磷灰石/聚酰胺66复合材料(n-HA/PA66)和纯PA66分别浸泡于去离子水、生理盐水、小牛血清和人血清中,于37℃恒温,1~12周取样,测试材料的吸水率、重量变化以及浸泡液中Ca、P含量变化,并对材料表面作扫描电镜(SEM)观察.结果显示不同浸泡环境中材料的行为有所不同.n-HA/PA66复合材料较纯PA66吸水率低,稳定性好,活性提高.扫描电镜显示在血清中复合材料表面形成大量颗粒状沉积物.n-HA/PA66复合材料在几种浸泡介质中均表现出良好的稳定性和生物活性.
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