用TEM、XRD、FT-IR、TG-DTA等测试手段对成熟的人股骨皮质骨、纳米羟基磷灰石n-HA及n-HA/聚酰胺66(PA66)复合材料的形貌、相组成、晶胞参数、微晶尺寸分布、微观应变、特征基团和离子以及组成等进行了定性和定量表征.提出了一种简单易行的制样方法以获得较为清晰的人骨磷灰石照片.定量比较了人骨与两种材料中磷灰石晶体的结构差异.结果表明,n-HA和n-HA/PA66均具有较高的仿生性能.n-HA和n-HA/PA66中磷灰石的结晶度高于人骨磷灰石,晶格较人骨磷灰石完善,晶格畸变程度较人骨磷灰石小,并且两者中水分含量和CO2-3含量均低于人骨.本文的研究对于进一步优化现有的骨修复替代材料和进一步开发更接近于人骨的骨修复替代材料具有重要意义.
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