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The dispersant effect on HA powder prepared by chemical

SHEN Xiang,LI Musen,CAO Ning,WANG Chengxiang,L Yupeng,BAI Yunqiang   

  1. School of Materials Science and Engineering,Shandong University,Jinan 250061,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-06-24 Published:2006-06-24
  • Contact: SHEN Xiang

Abstract: HA particles were synthesized by the chemical precipitation method and dispersed by the solutions of PEG 2000, (NaPO3)6 and LoponR 885 in water. The effect of different dispersants in the process on prepared HA powder was analyzed. This paper analyzes the dispersed HA by the means of XRD, TEM and particle size analyzer. The results indicate that a majority of constitution of the powders is mainly HA, and the HA particles dispersed by (NaPO3)6 and Lonpon885 become smaller, and the particles take approximately spherical shape. So, the proper selection of dispersant is an effective method to prepare highly dispersed HA powders.

Key words: dispersant, chemical precipitation method, the particle size analyses , hydroxyapatite

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