牙种植体纳米含氟羟基磷灰石涂层材料制备实验研究 - 中国实用医学 .pdf

102 ChineseJournalofPracticalStomatology Feb.2013Vol.6No.2 论 著 牙种植体纳米含氟羟基磷灰石涂层材料 制备实验研究 游滢滢 ，黄生高1 2 文章编号：1674-1595（2013）02-0102-03 中图分类号：Ｒ78 文献标志码：Ａ 摘要：目的 探讨用溶胶-凝胶法制备出的纳米含氟羟基磷灰石（nFHA ）材料用于纯钛表面涂覆的理论依据。方 法 本实验于2010 年1-5 月在中南大学粉末冶金研究院完成。采用溶胶-凝胶法制备nFHA 和羟基磷灰石（HA） 材料，通过X 线衍射（XRD ）、透射电镜（TEM ）表征其物相组成及颗粒大小，扫描电镜（SEM）观察涂层在纯钛表面 形貌。结果 XRD 检测结果显示，运用溶胶-凝胶法可制备出nFHA 材料，氟离子进入HA 晶体中，以nFHA 固溶 体形式存在。TEM 显示，nFHA 晶体呈短棒状，粒径大部分在100 nm 以下，符合纳米级别。SEM 显示，热处理后的 nFHA 涂层，为多孔形貌，相互形成穿通结构，颗粒均匀分布，无明显裂纹。结论 （1）采用溶胶-凝胶法可制备 出nFHA 涂层材料；（2 ）nFHA 较HA 在钛基表面涂层可形成更佳的孔隙结构。 关键词：含氟羟基磷灰石；溶胶-凝胶法；涂层；纳米材料 Preparation of nano fluoridated hydroxyapitite for dental implant coatings YOU Ying-ying*，HUANG Sheng-gao.*DepartmentofStomatology，theFifthAffiliatedHospitalofSunYat-senUniversity，Zhuhai519000 ，China Abstact：Objective To investigate the surface properties of nano fluoridated hydroxyapatite （nFHA ）modified for tita⁃ nium coating ；to provide further experimental work with foundation. Methods Sol-gel method was used to prepare nFHA and hydroxyapatite （HA）；XRD and TEM were used to obtain the surface formation of nFHA ；pure Ti substrates were observed by SEM. Results The XRD test showed that nFHA coatings were deposited onto pure Ti substrates by sol-gel method. F- was incorporated into the HA lattice structure and nFHA existed in the state of solid solution. The TEM micrograph of nFHA showed that most nano-sized powders in short rod-like shape were synthesized below 100nm. The SEM observation showed that nFHA coatings deposited on pure Ti substrates after heat treatment showed porosity in⁃ teracted to each other and particles were distributed evenly without crack. Conclusion （1）nFHA coatings can be pre⁃ pared by sol-gel method ；（2 ）nFHA deposited on pure Ti substrates has better porosity structure than HA. Keywords：fluoridated hydroxya