固相离子交换法制备碳酸羟基磷灰石涂层的研究  

The Investigation on the Preparation of Carbonated Hydroxyapatite Coating by Solid-Ion-Exchange Method

作　　者：梁华银[1] 朱庆霞[1] 李家科[1] 罗民华[1] 

机构地区：[1]景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,江西景德镇333001

出　　处：《陶瓷学报》2011年第2期207-211,共5页Journal of Ceramics

基　　金：江西省青年自然科学基金项目(编号:2009GQC0074)

摘　　要：通过涂覆-烧结法在氧化铝(Al2O3)基体上制备羟基磷灰石(HA)/氟羟基磷灰石(FHA)双层涂层,然后采用固相离子交换法在湿CO2气氛中对HA表层进行碳酸化处理。XRD、FTIR和SEM测试结果表明:FHA中间层能有效地抑制HA与Al2O3的反应,湿CO2气氛中的湿气有利于分解相的恢复,而碳酸根能进入到表面涂层结构内部,形成A型替代为主的碳酸羟基磷灰石(CHA)。所获得的双层涂层具有多孔粗糙的表面,但与Al2O3基体结合紧密。A hydroxyapatite/hydroxyfluorapatite （HA/FHA） double layer was coated on Al2O3 by a coating-sintering method. Carbonation of HA surface coating was carried out in wet CO2 atmosphere by solid-ion-exchange method. XRD, FTIR and SEM results showed that FHA intermediate layer was effective in suppressing the reaction between HA and Al2O3, the moisture in wet CO2 atmosphere was beneficial to the recovery of decomposition phases and carbonate ions could enter the surface structure to form the carbonated hydroxyapatite with prevailing A-type substitution. The obtained double-layered coating was porous and relatively rough, but was firmly adhered to the Al2O3 substrate.

关 键 词：固相离子交换法 碳酸羟基磷灰石 氟羟基磷灰石 涂层 替代 

分 类 号：TQ174.75[化学工程—陶瓷工业]