主要研究了pH值对HA粉体Zeta电位的影响,分析了分散剂含量和浆料固相含量对HA浆料粘度的影响,研究了HA浆料的流变性和稳定性,并测量了不同工艺条件下所制备的HA生坯的密度.研究结果表明,在pH=9时,HA粉体表面的Zeta电位值达到最大,HA浆料具有良好的分散性.在分散剂含量为5％(质量分数),浆料固相含量为60％(质量分数)时,HA浆料的粘度达到最低值476.1 mPa·s,HA浆料具有较好的充型能力.HA浆料具有剪切变稀特性,室温静置12 h时浆料具有较好的稳定性.与干压成型相比,60％HA(质量分数)浆料离心成型所得到的生坯密度更高,更有利于HA生物陶瓷的烧结.
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