采用液相共沉淀法分别制备了不同比例的纳米羟基磷灰石(HAP)/壳聚糖(CS)-海藻酸钠(Alg)复合材料,在利用XRD、SEM及EDS对制备的复合材料进行分析研究的基础上,考察了复合材料的力学性能.研究结果表明,复合材料内部结合致密,有机相与无机相融为一体,羟基磷灰石颗粒结晶较好,形状为类球状,平均粒径为20nm左右,颗粒分布相对均匀；HAP与CS-Alg质量比的变化直接影响复合材料内HAP颗粒的结晶、粒径及分散性.当HAP与CS-Alg的质量比为50∶50时,复合材料的均一性、致密性最佳,抗压强度最大可达46.5 MPa.EDS分析发现复合材料中仅含微量的钠和钾元素,钙、磷原子比约为1.75,属于富钙型的HAP.
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