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Towards optimization of the silanization process of hydroxyapatite for its use in bone cement formulations
JOSE MANUEL CERVANTES UC
Acceso Abierto
Atribución-NoComercial-SinDerivadas
The aim of this work was to provide some fundamental information for optimization of silanization of hydroxyapatite intended for bone cement formulations. The effect of 3-(trimethoxysilyl) propyl methacrylate (MPS) concentration and solvent system(acetone/water ormethanol/water mixtures) during HAsilanization wasmonitored by X-ray diffraction (XRD), FTIR spectroscopy and EDX analysis. The effect of silanized HA on the mechanical properties of acrylic bone cements is also reported. It was found that the silanization process rendered hydroxyapatitewith lower crystallinity compared to untreated HA. Through EDX, itwas observed that the silicon concentration in the HA particles was higher for acetone–water than that obtained for methanol–water system, although the mechanical performance of cements preparedwith these particles exhibited the opposite behavior. Taking all these results together, it is concluded that methanol–water system containing MPS at 3 wt.% provides the better results during silanization process of HA.
31-03-2014
Artículo
INGENIERÍA Y TECNOLOGÍA
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