B_2O_3对磷酸盐生物玻璃水解性的影响  

Effects of B_2O_3 on the Hydrolization of the Phosphate Bioglasses

作　　者：刘秋霞[1] 闫玉华[1] 

机构地区：[1]武汉工业大学

出　　处：《武汉工业大学学报》1998年第3期34-36,共3页

摘　　要：采用化学分析、热膨胀测试及红外光谱分析．研究了适量引入B2O3对磷酸盐玻璃水解性的影响．并从组成-结构-性质的关系上进行了分析．结果表明，B2O3的适量引入．使玻璃水解率和热膨胀系数都出现反常现象．B2O3主要以[BO4]四面体进入以[PO4]四面体为主体的偏磷酸盐玻璃网络结构中，使玻璃既具有一定的生物活性，又具有一定的化学稳定性。The hydrolization of the phosphate glasses containing B2O3 was studied by means of chemical analysis and thermal expansion and IR. The constituent-structure-property relationship of the glasses was discussed.When B2O3 was added to the Na2O-CaO-P2O5 system. B3+ ions exist mainly in the form of [BO4] tetrahedra which feint with[PO4] tetrahedra. The main structure of the glasses is the metaphosphate group. The anomalies were observed in the thermal expansioncoefficient and hydrolization. The glasses have not only certain biological activity but also certain chemical stability.

关 键 词：水解性 生物玻璃 三氧化二硼 磷酸盐玻璃 

分 类 号：R318.08[医药卫生—生物医学工程] TQ171.717[医药卫生—基础医学]