Study of the effects of heat-treatment of hydroxyapatite synthesized in gelatin matrix

[摘要] In the study, the isothermal thermogravimetric analysis (TGA) of hydroxyapatite synthesized in gelatin matrix (HAG) has been performed. 3 wt.% HAG samples were synthesized from the solution simulating the human extracellular fluid (SBF). X-ray diffraction and IR spectroscopy were used to determine the composition. During the experiment, increase in the calcination temperature up to 200°C-800°C was found to cause weight loss. The study of phase composition revealed that heat treatment does not affect the phase composition of the solid phase, which is composed of hydroxylapatite (HA). The prepared HAG (3 wt.% gelatin) samples are shown to have low thermal stability; the degradation of the samples occurs at 400°C.

[发布机构] Department of Inorganic Chemistry Omsk, F. M. Dostoevsky State University, Russia^1;National Research Tomsk Polytechnic University, Tomsk, Russia^2

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Calcination temperature;Effects of heat treatment;Extracellular fluid;Gelatin matrix;Hydroxylapatite;Isothermal thermo-gravimetric analysis;Solid-phase;Weight loss