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Materials Research

Print version ISSN 1516-1439On-line version ISSN 1980-5373


BRAGA, Francisco José Correa et al. Characterization of PVDF/HAP composites for medical applications. Mat. Res. [online]. 2007, vol.10, n.3, pp.247-251. ISSN 1516-1439.

Biomaterials (composites and blends) play a major role in the health of modern society. This paper reports on the preparation and characterization of polyvinylidene fluoride (PVDF) and hydroxyapatite (HAP) composites, analyzing the incorporation of HAP in PVDF and investigating their mechanical properties and cytotoxicity (biocompatibility) for use in bone restoration and filling. The material was prepared in film form by the casting method. PVDF pellets were dissolved in dimethylacetamide (DMA), a HAP/DMA emulsion was prepared. The materials were mixed in proportions of 100/00, 90/10, 80/20, 70/30, 60/40, 50/50, 40/60, 30/70 in weight and left to dry in an oven, resulting in homogeneous, flexible films which were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X ray diffractometry (XRD), contact angle measurement, and by mechanical and cytotoxicity tests.

Keywords : polyvinylidene fluoride; polymer composites; biomaterials; hydroxyapatite.

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