在利用熔融法制备生物玻璃过程中,由于熔融条件及原料纯度的改变而使玻璃显示不同颜色,如淡红色、淡蓝色与无色.为了探讨生物玻璃的显色机理,进而控制制备工艺,本研究采用紫外-可见分光光度计测定了显色生物玻璃在可见光范围内的透光曲线.采用X射线荧光光谱(XRF)确定造成生物玻璃显色的杂质元素为镍、铁和硫,并探讨了生物玻璃的显色机理.通过体外实验和红外光谱分析技术以及比较了不同显色生物玻璃的矿化性能,来反映其生物活性的水平.研究结果显示呈淡红色和无色生物玻璃的体外矿化性能略高于淡蓝色生物玻璃.本文研究结果可用于生物玻璃的标准化制备工艺控制.
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