Influence of Carbon Nanotubes in Nano-carboapatite

One of the characteristics to be achieved by biomaterials is to have similarity to the host material. Carbonated hydroxyapatite (HAC) has both considerable composition and order of magnitude in relation to human bone. For the application in cases of bone substitution, HAC would be a good candidate, but it is shown with low mechanical resistance, which would make it difficult to apply it in areas that perform high mechanical stress. However, carbon nanotubes (CNTs) have low density and strong covalent bonding between their atoms, which confers high mechanical resistance to the material. For this reason, the influence of CNTs on the structure and properties of HAC was studied. Pure CNTs (pristines) and functionalized with CNT-COOH carboxyl were inserted for the study.  XRD, TG / DTA and IR where used to study the influence of CNTs on the structure of HAC.