用挤出法制备石英纤维(quartz fibre,QF)/纳米羟基磷灰石(nano-hydroxyapatite,n-HA)/聚酰胺66(polyamide 66,PA66)复合材料(QF/n-HA/PA66),表征了其结构、形貌、力学性能和细胞毒性.结果表明:QF均匀地分散在n-HA/PA66中,且与PA66基体存在氢键结合；复合材料的力学性能随着石英纤维含量的增加而增大,当石英纤维含量为38％时复合材料的抗拉强度为81 MPa,抗压强度为190 MPa,抗弯强度为195 MPa(比人体皮质骨的高)；n-HA/PA66基体所承受的载荷传递给QF纤维,纤维轴向传递使应力迅速扩散,这种传递作用在一定程度上起到了力的分散作用,从而增强了材料承受外力作用的能力,导致材料的弯曲强度、拉伸强度等力学性能的显著提高.QF/n-HA/PA66复合材料无细胞毒性,满足承重骨修复材料的要求.
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