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Stearate Salts as Brushite Bone Cement Setting Retardants

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Abstract:

This study sought to examine the efficiency of coating cement powder reactants in order to reduce the solubility rate of reactants and thereby increase setting times of cement systems. In this investigation magnesium and sodium stearate salts were used to coat the highly soluble monocalcium phosphate monohydrate (MCPM) powder component of a hydraulic brushite forming calcium phosphate cement system with b-tricalcium phosphate (b-TCP) as other component. The results showed that stearate coating of the MCPM reactant could lead to a 100% increase in setting and working times without affecting compressive strength of the set cement when applied with the appropriate P/L-ratio.

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Bioceramics 17 View Preview

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Periodical:

Key Engineering Materials (Volumes 284-286)

Pages:

19-22

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.284-286.19

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Online since:

April 2005

Authors:

M.P. Hofmann, Uwe Gbureck, Liam M. Grover, J.E. Barralet

Keywords:

Bone Cement, Brushite, Coating, Setting Time

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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