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为了进一步提高磷灰石/硅灰石(apatite-wollastonite,AW)生物玻璃骨水泥的性能,采用不同组成的柠檬酸/磷酸盐溶液作为固化液,与溶胶-凝胶法制备的AW生物玻璃调合制备了AW-玻璃骨水泥(AW-glassbone cement,AW-GBC)。利用X射线衍射和扫描电镜对骨水泥的晶相组成和显微结构进行了研究,探讨了固化液组成对骨水泥固化时间、生物活性及力学性能的影响。结果表明:采用柠檬酸/K2HPO4/KH2PO4复合固化液制备的骨水泥固化后,浸泡于模拟体液7d,即生成较多的羟基磷灰石,且抗压强度较高,说明复合固化液更有利于获得较高生物活性和力学性能的AW生物玻璃骨水泥。
In order to further improve the performance of apatite-wollastonite (AW) bio-glass bone cement, citric acid / phosphate solution with different composition was used as the curing solution, Co-fabricated AW-glassbone cement (AW-GBC). The crystal phase composition and microstructure of bone cement were studied by X-ray diffraction and scanning electron microscopy. The effects of the composition of curing fluid on the curing time, bioactivity and mechanical properties of bone cement were discussed. The results showed that the bone cement prepared with citric acid / K2HPO4 / KH2PO4 composite solidified liquid was solidified and soaked in simulated body fluid for 7 days to produce more hydroxyapatite and higher compressive strength, indicating that the composite solidified liquid is more conducive to Obtain higher biological activity and mechanical properties of AW bio-glass bone cement.