The Effects of Surfactants on the Topography of HA

Abstract:

Nano-hydroxyapatite colloid was prepared by the method of precipitation. when the colloid was dried and sintered,it always agglomerated.The CTAB and SDS were added to disperse it . The effects of surfactants on the size and phase of HA crystals were studied by TEM and XRD .The results showed that Nanometer columnar HA powders of 40nm long and 20nm wide with narrow distribution of particle size and dispersion performance can be prepared when we added CTAB aqueous solution into HA colloid,CTAB concentration is 0.3%, mol ratio between CTAB and HA is 3:10. As SDS aqueous solution was added into HA colloid, the best process is that SDS concentration is 0.6%, mol ratio between SDS and HA is 1:1. The prepared powder with wide distribution of particle size is 30-60nm long and 10-30nm wide.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 466-469
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.466
• Online since: May 2013
• Authors: Qing Zhu Sun, Hai Bo Wang
• Keywords: Cetyl Trimethyl Ammonium Bromide (CTAB), HA, SDS

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