Production of Hydroxyapatite/Polyhydroxibutirate Based Composites for Biomaterials Applications

Geciane A. Santos; Alan Christie Silva Dantas; Leticia M. Oliveira; Andrea de Vasconcelos Ferraz; Wilson Acchar; Nelson C. Olivier

doi:10.4028/www.scientific.net/MSF.820.309

Paper Titles

Effect of Sonochemical Technique on the Morphology and Crystallinity of Hydroxyapatite Nanoparticles
p.287

Electrochemical Impedance Spectroscopy: Evaluation of Drug Delivery System of Alpha-Tricalcium Phosphate Cement
p.293

Aging Behavior of Commercial and Synthesized Dental Y-TZP Ceramics
p.297

Evaluation of the Cytotoxicity of NiFe₂O₄/SiO₂ Hybrid Nanoparticles Aiming its Application as Drug Carriers
p.303

Production of Hydroxyapatite/Polyhydroxibutirate Based Composites for Biomaterials Applications
p.309

Evaluation of Morphology and Roughness of the Surface of a Ceramic Based on Lithium Disilicate, after Conditioning with Acid Hydrofluoric the 5% and 10%
p.315

Evaluation of Mechanical Properties of Composite Materials Used in Dentistry Varying the Inorganic Composition
p.320

Analysis of Flexural Strength of Ceramics Based on Zirconia Stabilized by Yttria with Ceramic Cover
p.325

Phase Stability of 3Y-TSZ Ceramics after Different Surface Treatments
p.330

HomeMaterials Science ForumMaterials Science Forum Vol. 820Production of Hydroxyapatite/Polyhydroxibutirate...

Production of Hydroxyapatite/Polyhydroxibutirate Based Composites for Biomaterials Applications

Abstract:

Hydroxyapatite (HA) is a ceramic material broadly studied due to its great similarity with the human bone. However, this material presents high stiffness and young modulus in comparison with the bone tissue. The polyhydroxybutyrate (PHB) is a themoplatic and biodegradable polymer that presents bone like young modulus and gradative degradation that results in a permanence of the mechanical properties after implantation. The aim of this study is to evaluate the effect of the infiltration of melted PHB on the mechanical properties of porose HA bodies. The composite samples were characterized by SEM, EDS and compressive strength. The samples produced with 10% paraffin and sintered at 1200 °C showed the best mechanical properties and reached an increase of the compressive strength from 29,00 ± 4,70 MPa before infiltration to 83,00 MPa ± 4,41 after infiltration with PHB for a final porosity of 5%.

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Periodical:

Materials Science Forum (Volume 820)

Pages:

309-314

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.820.309

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Online since:

June 2015

Authors:

Geciane A. Santos, Alan Christie Silva Dantas, Leticia M. Oliveira, Andrea de Vasconcelos Ferraz, Wilson Acchar, Nelson C. Olivier

Keywords:

Hydroxyapatite, Infiltration, Mechanical Properties, PHB

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