含氟CaO-P_2O_5-SiO_2-Na_2O-B_2O_3玻璃陶瓷的制备及性能表征  

Preparation and Properties of Fluorine Containing CaO-P_2O_5-SiO_2-Na_2O-B_2O_3 Glass-ceramics

作　　者：江莉梅 邹翔宇[1] 韦钦磊 宋琼[1,2] 邓爽[1] 张洪波[1] 苏春辉[1,3] 

机构地区：[1]长春理工大学化学与环境工程学院,长春130022 [2]吉林工程技术师范学院,长春130052 [3]长春师范大学化学学院,长春130032

出　　处：《应用化学》2015年第4期442-446,共5页Chinese Journal of Applied Chemistry

基　　金：国家"863"项目(2011AA030204);吉林省科技厅重点研究项目(20120341)~~

摘　　要：采用溶胶-凝胶法制备Ca O-P2O5-Si O2-Na2O-B2O3体系前驱体粉末,用Ca F2替代部分Ca O再次制备前驱体粉末。通过TG-DSC分析确定结晶温度为865℃,经过热处理获得主晶相为Na6Ca3Si6O18的玻璃陶瓷。通过X射线衍射(XRD)、傅里叶红外光谱(FTIR)、扫描电子显微镜(SEM)等技术手段及体外生物活性实验分析玻璃陶瓷的显微结构及性能。结果表明,Ca F2的加入能提高玻璃陶瓷的体积密度、抗折强度和弹性模量,并且不会破坏玻璃陶瓷的生物活性。By partially substituting of CaO with CaF2, in CaO-P2O5-SiO2-Na2O-B2O3 glass-ceramic system a new precursor powder was prepared by the sol-gel method. Its crystallization temperature was determined by TG-DSC at 865 ℃. The main crystal phase of the glass-ceramics is Na6Ca3Si6O18. The microstructures and properties of this glass-ceramics were characterized by X-ray diffractometry （ XRD）, Fourier transform infrared spectroscopy（FTIR）, scanning electron microscopy （SEM） and in vitro assays. By addition of CaF2, the volume density, bending strength and mierohardness of the glass-ceramics are significantly improved, but the bioiogical activity of the glass-ceramics is maintained.

关 键 词：溶胶-凝胶法 CAF2 玻璃陶瓷 生物活性 

分 类 号：O611.4[理学—无机化学]