A Method for Simultaneously Precipitating and Dispersing Nano-Sized Calcium Phosphate Suspensions

Abstract:

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Stable and relatively concentrated aqueous suspensions of nano-sized stoichiometric hydroxyapatite could be prepared by a precipitation method in the presence of suitable surface active agent (SAA). The method includes the precipitation, vacuum filtration and washing of the precipitated powders, followed by re-dispersion. It could be concluded that the added amount of the SAA should be enough to cover the primary particles surface, and that washing should be better carried out using a SAA solution. The method developed enables the precipitation of the powders and the preparation of suspensions, while significantly shortening the overall time required for colloidal processing consuming.

Info:

Periodical:

Key Engineering Materials (Volumes 284-286)

Main Theme:

Edited by:

Panjian Li, Kai Zhang and Clifford W. Colwell, Jr.

Pages:

67-70

DOI:

10.4028/www.scientific.net/KEM.284-286.67

Citation:

A.F. Lemos et al., "A Method for Simultaneously Precipitating and Dispersing Nano-Sized Calcium Phosphate Suspensions ", Key Engineering Materials, Vols. 284-286, pp. 67-70, 2005

Online since:

April 2005

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Price:

$35.00

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