氟羟基磷灰石在明胶凝胶中的制备与表征  

Preparation and Characterization of Fluorapatite in Gelatin Gel

作　　者：岳雪涛[1] 孙康宁[2] 冯立明[1] 田清波[1] 张丰庆[1] 

机构地区：[1]山东建筑大学材料科学与工程学院,济南250101 [2]山东大学材料液态结构及其遗传性教育部重点实验室,济南250061

出　　处：《人工晶体学报》2015年第7期1957-1960,共4页Journal of Synthetic Crystals

基　　金：山东建筑大学博士科研基金(XNBS1435)

摘　　要：以明胶形成的凝胶为媒介物，通过为含有P04^3-、F^-的明胶凝胶提供钙源，调节氟羟基磷灰石生成的环境pH值，生成条带状氟羟基磷灰石晶体，并利用XRD、EDX、SEM及FT-IR对生成的粉体进行分析测试。研究表明，在pH值为7．0-5．0环境下生成的氟羟基磷灰石具有相同的微观形貌，均为条带状晶体。能谱分析结果表明生成的为Ca／P比小于其化学计量比的缺钙羟基磷灰石，其XRD图谱与FAP一致性较好，在pH值较低时有杂质导致的弱峰产生。Banded-like fluorapatite was obtained by the diffusion of calcium ions from calcium chloride solution to the gelatin-gel that contains phosphate and fluoride ions. The obtained powder was analyzed by XRD, SEM and FT-IR. The results show that the powder has similar banded structure under the condition of pH value ranged from 7. 0 to 5. 0. EDX analysis indicate that the powder can be characterized as calcium-deficient FAP due to its lower Ca/P atomic ratio than that based on chemical formula. The XRD patterns of the powders are in good agreement with that of FAP while there are different weak peaks appeared for the powder prepared at low pH value, which belongs to the impurities.

关 键 词：氟羟基磷灰石 明胶凝胶 条带状晶体 

分 类 号：TB321[一般工业技术—材料科学与工程]