The article presents the results of synthesis and studies of the physico-chemical properties of biomaterials based on oxide system SiOr-P20r-CaO-MgO. Solution with different contents of calcium and magnesium were prepared by the sol-gel method. Tetraethyl orthosilicate (TEOS), phosphoric acid (H3PO4), calcium nitrate (Ca(N0s)2'4H20) and magnesium nitrate (Mg(N03)2'6H20) in ethanol (C2H5OH) were used for preparation of solution. Viscosity of the solutions was 1,72-1,82 mm^/s on the first day. Powder X-ray diffraction showed at 800°C in the samples fixed phases quartz Si02, whitlockite (Ca2_5g9Mgo_4n) (PO f 2^ f-cristobalite high Si02, stanfieldite MgsCas(P04)4. Chemical bonds in the powders were identified by IR spectroscopy. The surface of the powders and chemical composition was investigated by SEM and EPMA.
Перспективы развития фундаментальных наук : сборник научных трудов XV Международной конференции студентов, аспирантов и молодых ученых, 24–27 апреля 2018 г.. Томск, 2018. Т. 2 : Химия. С. 126-128
Language
rus
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Химический факультет
Синтез и свойства биоактивных материалов на основе системы SiO2-P2O5-CaO-MgO