十二烷基硫酸钠在化学沉淀法合成羟基磷灰石粉体中的防团聚作用  

Role of sodium dodecyl sulfate in de-agglomeration of hydroxyapatite powder synthesized by chemical precipitation method

作　　者：叶建东[1] 肖锋[2] 王秀鹏[2] 王迎军[1] 

机构地区：[1]华南理工大学特种功能材料及其制备新技术教育部重点实验室,广东广州510641 [2]华南理工大学材料学院,广东广州510641

出　　处：《功能材料》2005年第10期1594-1596,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50172015);广东省自然科学基金资助项目(011561;04205786)

摘　　要：化学沉淀法合成羟基磷灰石工艺简单,但所合成的羟基磷灰石粉体团聚严重。本文研究了通过在合成过程中加入表面活性剂十二烷基硫酸钠来减少羟基磷灰石粉体的团聚。结果表明,在合成过程中添加适量的十二烷基硫酸钠能有效减少粉体的团聚程度,所得到的粉体比表面积较高。同时,本文还讨论了合成过程中表面活性剂的作用机理。Chemical precipitation method was a simpler technology for synthesizing hydroxyapatite （HA）, but HA powder synthesized via this method was seriously agglomerated. Sodium dodecyl sulfate （SDS） was added into the reaction system as a surfactant during the synthesis of HA by chemical precipitation method and the role of SDS in de-agglomeration of HA powder was investigated in this work. The results indicated that the addition of SDS reduced the degree of agglomeration of HA powder with an increase in the specific surface area of the powder. The de-agglomeration mechanism of the surfactant during the synthesis of HA was also discussed.

关 键 词：羟基磷灰石 防团聚 十二烷基硫酸钠 表面活性剂 化学沉淀法 

分 类 号：R318.08[医药卫生—生物医学工程] TQ174.75[医药卫生—基础医学]