CAJ | 학술논문

为了检测硅酸盐水泥（PC）在模拟体液（SBF）中降解和生物矿化性能，将硅酸盐水泥样品分别浸泡于模拟体液3，7及14 d后，采用X射线衍射仪（XRD）、傅里叶红外光谱（FTIR）及扫描电镜（SEM）等方法研究其生物矿化性能；并同时检测其失重率及模拟体液浸泡液的pH值变化情况．研究结果发现：随着浸泡时间的增长，硅酸盐水泥的质量增加；模拟体液在浸泡前3d碱性较强，随后其pH值逐渐降低．X射线衍射、红外光谱图谱及扫描电镜图像表明：硅酸盐水泥浸泡3d后，在其表面有碳酸钙生成；浸泡7d后，其表面有碳酸羟基磷灰石生成．因此，硅酸盐水泥具有良好的生物矿化能力．
위료검측규산염수니（PC）재모의체액（SBF）중강해화생물광화성능，장규산염수니양품분별침포우모의체액3，7급14 d후，채용X사선연사의（XRD）、부리협홍외광보（FTIR）급소묘전경（SEM）등방법연구기생물광화성능；병동시검측기실중솔급모의체액침포액적pH치변화정황．연구결과발현：수착침포시간적증장，규산염수니적질량증가；모의체액재침포전3d감성교강，수후기pH치축점강저．X사선연사、홍외광보도보급소묘전경도상표명：규산염수니침포3d후，재기표면유탄산개생성；침포7d후，기표면유탄산간기린회석생성．인차，규산염수니구유량호적생물광화능력．
To investigate the degradability and biomineralization ability of Portland cement (PC ), samples of PC were immersed in simulated body fluid (SBF)for 3,7 and 14 d respectively.X-ray diffraction (XRD),a Fourier transform infrared spectrophotometer (FTIR)and a scanning electron microscope (SEM)were used to investigate the biomineralization ability of PC;meanwhile,the weight loss of the samples and the pH value changes of their immersion media were monitored.The results show that with the soaking time prolonged,the weight of PC increases.The immersion media has a high alkalinity in the first three days,and then,the pH value declines.The XRD and FTIR patterns and the SEM images show that in SBF for 3 days,calcium carbonate is formed on the sur-face of PC and for 7 days carbonated hydroxyapatite is formed.Therefore,PC displays good biomin-eralization ability in SBF.