Preparation of Calcium Phosphate Cement Utilizing Dicalcium Phosphate Dihydrate and Calcium Carbonate

Nudthakarn Kosachan; Angkhana Jaroenworaluck; Sirithan Jiemsirilers; Supatra Jinawath; Ron Stevens

doi:10.4028/www.scientific.net/KEM.608.280

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 608Preparation of Calcium Phosphate Cement Utilizing...

Preparation of Calcium Phosphate Cement Utilizing Dicalcium Phosphate Dihydrate and Calcium Carbonate

Abstract:

Calcium phosphate cement has been widely used as a bone substitute because of its chemical similarity to natural bone. In this study, calcium phosphate cement was prepared using dicalcium phosphate dihydrate (CaHPO₄.2H₂O) and calcium carbonate (CaCO₃) as starting raw materials. The cement pastes were mixed and the chemistry adjusted with two different aqueous solutions of sodium hydroxide (NaOH) and disodium hydrogen phosphate (Na₂HPO₄). Concentrations of the solution were varied in the range 0.5 to 5.0 mol/L with the ratio of solid/liquid = 2 g/ml. The cement paste was then poured into a silicone mold having a diameter of 10 mm and a height 15 mm. Setting times for the cement were measured using a Vicat apparatus. XRD, FT-IR, and SEM techniques were used to characterize properties and microstructure of the cement. From the experimental results, it is clear that different concentrations of Na₂HPO₄ and NaOH have affected the setting times of the cement. The relationship between concentration of NaOH and Na₂HPO₄ and setting time, including final properties of the cement, is discussed.

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Periodical:

Key Engineering Materials (Volume 608)

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280-286

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.608.280

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Online since:

April 2014

Authors:

Nudthakarn Kosachan, Angkhana Jaroenworaluck*, Sirithan Jiemsirilers, Supatra Jinawath, Ron Stevens

Keywords:

Calcium Carbonate, Calcium Phosphate Cement, Dicalcium Phosphate Dihydrate, Setting Time

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