共沉淀法制备羟基磷灰石工艺优化条件的研究-医学期刊.PDFVIP

( ) 武警医学院学报 　 Acta Academiae Medicinae CPAPF Vol 12 　No 2 ·97 · 论著 共沉淀法制备羟基磷灰石工艺优化条件的研究 1 2 1 1 1 张 　力 , 汪 　超 , 苑庆兰 , 韩 　香 , 郝 　鹤 (武警医学院 : 1 化学教研室 ; 2 解剖学教研室 ; 天津 300162) 【摘 　要】　目的: 通过研究不同的反应溶剂、温度和分散剂的加入对羟基磷灰石烧结产物性质的影响 , 探讨羟 基磷灰石合成工艺的优化条件。方法 : 选择不同的反应条件制备羟基磷灰石。通过 X 射线衍射、红外光谱对目 标产物羟基磷灰石作定性分析。结果 : 乙醇作反应溶剂 , 同时降低沉淀反应温度可改善产物的分散度 , 降低粒 径 ; 分散剂的存在可提高烧结产物的气孔率。结论 : 该合成工艺可制备晶型结构完整、小粒径、高气孔率的羟 基磷灰石。 【关键词】　羟基磷灰石 ; 沉淀 ; 烧结 【文章编号】(2003)　 【中图分类号】　R614 23 　 【文献标识码】　A Studying on processing of preparing hydroxya patite by deposition ZHANGLi , WANG Chao , YUAN Qinglan , HAN Xiang , HAO He ( Department of Chemistry , Medical College of Chinese People ’s Armed Police Forces , Tianjin 　300162 , China) 【Abstract 】Objective : To select the best conditions of reaction by studying the effect of solvent , temperature and dis perser on the sintering hydroxyapatite during its preparation. Methods : The hydroxyapatite was prepared by the deposi tion method. The powder was identified by X - ray diffraction and infrared spectrum. Results : Reacting in alcohol and lowering temperature could improve dispersity of the samples and reduce the aspect ratio of the grains. Mixing disperser during sinter could increase the pore ratio in the samples. Conclusion : The hydroxyapatite prepared by the deposition method was porous , small - grains and integrity microstructure. 【Key Words】　Hydroxyapatite ; Deposition ; Sintering 　　羟基磷灰石 ( Hydroxyapatite , HAP) [ 化学分 热法、三元焙烘法等