MAP-乙醇-水三元相图的绘制及其在纳米羟基磷灰石制备中的应用  

Study on the Drawing of the Phase Diagram of MAP-Ethanol-Water System and It s Application to the Syntheses of Nano Hydroxyapatite

作　　者：刘小健[1] 王迎军[1] 魏坤[1] 张淑花[1] 赵娜如[1] 王旭东[1] 

机构地区：[1]华南理工大学材料学院,广州510640

出　　处：《硅酸盐通报》2007年第1期1-4,24,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家973项目(2005CB623902);国家自然科学基金项目(50572029);广东省自然科学基金团队项目(04205786)

摘　　要：绘制了单烷基磷酸酯(MAP)-乙醇-水三元体系在30℃的相图,用电导法结合偏光显微镜等测试仪器将相图分为W/O微乳区、O/W微乳区、MAP过量区、微乳液与液晶共存区和液晶单相区。选取相图中W/O微乳区内的一个液相组分点,制备了纳米羟基磷灰石。小角X射线衍射、透射电子显微镜分析结果显示:纳米羟基磷灰石具有规则排列的层状微观结构。The phase diagram of the ternary-component of MAP-ethanol-water system was studied by dilution method. The microstructure of microemulsions were determined through conductance technique and polarization microscope, and the graph was delimited as W/O, O/W microemulsion domains, microemulsion and liquid crystal coexistence domain, MAP excess domain and liquid crystal domain. Nano hydroxyapatite was prepared with the liquid component that is located in the W/O domain. The analysis being carried out by using small angle X-ray diffraction （XRD） and transmission electron microscope （TEM） methods revealed that there is ordered layer microstructure in the nano hydroxyapatite particles.

关 键 词：相图 电导率 单烷基磷酸酯 纳米 羟基磷灰石 

分 类 号：TQ174.75[化学工程—陶瓷工业]