Synthesis and investigation of functional characteristics of composite materials based on nanoscale hydroxyapatite and synthetic zeolites

Abstract

The article discusses the possibility of obtaining composite materials based on nanostructured hydroxyapatite synthesized by precipitation from solution and synthetic zeolites by mechanochemical synthesis. The synthesized samples are certified using modern physico-chemical methods of analysis. The influence of the qualitative and quantitative composition of the composite and the temperature treatment modes on the sintering processes and the strength characteristics of the studied samples is showed. It has been experimentally established that the maximum strength characteristics and constant composition are possessed by a sample based on hydroxyapatite, the content of the reinforcing additive in which is 15 wt.%. It was also found that the hydroxyapatite-zeolite composite exhibits sorption properties against heavy metal ions and fluorine ions. The studies carried out allow us to recommend the samples obtained for further research in order to introduce it into medical practice, but also as a sorption material for the extraction of ions from aqueous solutions.

Keywords

• hydroxyapatite
• synthetic zeolites
• composite materials
• microhardness
• sorption