采用超声共聚法制备了含硅羟基磷灰石Si-HA纳米粉体,并用柠檬酸与丙烯酸制成的固化液与之按一定比例调制成含硅羟基磷灰石骨水泥Si-HAC.采用XRD和FESEM对Si-HA纳米粉体的晶相、粒度、结构和表面形貌进行了分析表征,并用万能材料试验机测定了所得Si-HAC骨水泥的力学性能.研究结果表明,将硅源TEOS加入到具有较强碱性的Ca(OH)2氨水前驱液中能有效避免TEOS的水解漂浮,使钙硅均匀混合;将超声空化作用施加于Ca(OH)2和H3PO4外加硅源的反应体系,进行超声共聚.能有效防止次生相的形成,合成的纳米粉体纯度高,结晶细腻而均匀;将硅掺杂的Si-HA纳米粉体与柠檬酸/丙烯酸固化液调制成Si-HAC骨水泥能有效提高其力学性能,尤以4%Si最佳.
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