Effect of type of calcium phosphate on microstructure and properties of glass reinforced biocomposites

Abstract

In the present study two different types of calcium phosphates (synthetic calcium phosphates (SCP) and biogenic hydroxyapatite (BHA)) were used to produce porous biocomposites with addition of 35.5–41.0 wt% SiO2-Na2O-B2O3 glass. It has been shown that morphology, density, porosity, mechanical properties and solubility in vitro of prepared composites depend on the amount of glass and type of introduced phosphates. The obtained results reveal that the prepared composites combine good mechanical properties (up to 141 MPa) with sufficient solubility. The porous composites based on SCP have a significant higher dissolution in physiological solution in comparison with composites based on BHA.

Keywords

• Hydroxyapatite
• Glass
• Morphology
• Porosity
• Solubility