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Carbon and polymeric composites modified by nano-hydroxyapatite
|Barbara Szaraniec 2, Patrycja Rosół 1, Jan Chłopek 1|
1. AGH University of Science and Technology (AGH), al. Mickiewicza 30, Kraków 30-059, Poland
The attempts to develop a bioactive material with physical and chemical properties similar to a natural bone remains still an unsolved problem. Current research work concentrates mainly on composite materials. The first possibility is to improve the mechanical properties of bioactive material like e. g. hydroxyapatite, especially its strength and fracture toughness. Unnecessary the results of the investigations deal with reinforcements in the form of plates, dispersions, whiskers or fibres are not quite satisfactory. It is much better to introduce bioactive phase in volume or onto the surface of material with appropriate mechanical properties in which it will play a role of active centres favouring the formation of natural HAP, i.e. the bone tissue. Such materials with good mechanical and chemical properties, successfully applied in medicine are polysulphone and carbon-carbon composites. Addition of hydroxyapatite to these materials has beneficial effects on their biological behavior and assimilates them to natural bone. The present work analyzes the effects on the mechanical and biological properties of carbon and polymeric composites modified by hydroxyapatite, both natural (of nano-particles) and synthetic (of mikro-particles).
Presentation: poster at E-MRS Fall Meeting 2004, Symposium B, by Barbara Szaraniec
See On-line Journal of E-MRS Fall Meeting 2004
Submitted: 2004-05-19 21:06 Revised: 2009-06-08 12:55