以生物活性SiO2-CaO-P2O5-CaF2系统玻璃粉末为基体,以磷酸铵溶液为固化液,添加明胶微球,制得了明胶微球多孔玻璃基骨水泥.将骨水泥于置37℃的生理模拟液(SBF)中浸泡后,利用pH计、XRD、SEM和力学试验机等对浸泡液的pH值和钙离子浓度,以及浸泡产物的晶相、显微结构和力学性能等进行了观测和分析.结果表明,明胶微球的加入使玻璃基骨水泥从高pH值降至略大于7.0的弱碱性,并加快了骨水泥对钙离子的吸收和羟基磷灰石(HAP)的生长,使玻璃基骨水泥体现出更好的生物活性.在明胶微球含量为5％(质量分数)时,浸泡后形成的骨水泥的孔隙率接近80％,而其抗压强度仍可达5 MPa以上.
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