钛合金表面梯度掺锶透钙磷石涂层研究

发布时间：2018-04-11 05:25

本文选题：医用钛合金 + 电化学沉积　；参考：《河北大学学报(自然科学版)》2016年02期

【摘要】：通过2步电化学沉积工艺,以医用钛合金(Ti-6Al-4V)作为基板,制备梯度掺锶透钙磷石涂层,为涂层钛(合金)的临床应用与进一步实验研究提供有价值的理论参考.实验采用X线衍射仪(XRD)以及X线荧光光谱仪(XRF)检测试件涂层成分和掺锶量,场发射扫描电镜(SEM)观测微观形貌,溶血实验检测溶血率,初步判断其体外生物相容性.根据检测结果,按照n(Sr)/n(Sr+Ga)计算涂层掺锶量,结果显示成功在钛合金基板上制备锶的物质的量分数为10%、15%、20%的透钙磷石涂层,SEM观察涂层形态规则致密,检测溶血率均小于5%,符合医用材料相应要求(5%).
[Abstract]:Gradient strontium doped calcium phosphate coating was prepared by two-step electrochemical deposition with Ti-6Al-4V medical titanium alloy as substrate, which provides a valuable theoretical reference for the clinical application and further experimental study of the coating titanium (alloy).X-ray diffractometer (XRD) and X-ray fluorescence spectrometer (XRF) were used to detect the coating composition and strontium content. The microscopic morphology was observed by field emission scanning electron microscope (SEM). The hemolysis rate was detected by hemolysis test, and the biocompatibility in vitro was preliminarily judged.According to the test results, the strontium content of the coating was calculated according to n(Sr)/n(Sr Ga. The results showed that the content fraction of strontium successfully prepared on the titanium alloy substrate was 10 ~ 1520% of the permeable calcium phosphate coating, and the morphology of the coating was observed to be regular and compact.The hemolysis rate was less than 5%, which met the requirement of medical materials.
【作者单位】：华北理工大学口腔医学院;
【基金】：河北省教育厅重点项目(ZD2015016)
【分类号】：R318.08

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