Method for preparing tetragonal BaTiO3/HA composite nanoparticles by liquid-phase rotary evaporation method

A composite nanoparticle and tetragonal technology, applied in medical science, prosthesis, etc., can solve the problems of high brittleness and poor strength, and achieve the effect of low cost, high performance and good stability

Inactive Publication Date: 2021-04-20
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, a single HA has the disadvantages of poor mechanical properties such as poor strength and high brittleness. Combining HA with tetragonal BaTiO 3 Composite can combine the advantages of both properties to obtain materials with good mechanical properties, piezoelectric properties and osteoinductivity

Method used

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  • Method for preparing tetragonal BaTiO3/HA composite nanoparticles by liquid-phase rotary evaporation method
  • Method for preparing tetragonal BaTiO3/HA composite nanoparticles by liquid-phase rotary evaporation method
  • Method for preparing tetragonal BaTiO3/HA composite nanoparticles by liquid-phase rotary evaporation method

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Experimental program
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Effect test

Embodiment 1

[0032] Step 1, preparation of BaTiO 3 Precursor solution: first weigh 1.8g BaCl 2 2H 2 Add 10mL of deionized water to O and stir until completely dissolved, then add 0.6g of ethanolamine into it, and stir evenly to obtain a barium salt solution; then weigh 3.5g of C 16 h 36 o 4 Dissolve Ti in 5mL of absolute ethanol, stir evenly to obtain a titanium salt solution; finally weigh 2.5g NaOH, slowly dissolve in 10mL deionized water one by one to obtain a strong alkali solution; mix the barium salt solution, titanium salt solution and strong alkali solution and stir evenly , to obtain a white turbid liquid, which is BaTiO3 precursor solution;

[0033]Step 2, preparing HA solution: Weigh 10g of commercial HA nanopowder and dissolve it in 50mL of absolute ethanol, stir evenly to obtain HA solution;

[0034] Step 3, preparation of BaTiO 3 / HA precursor solution: the BaTiO obtained in step 1 3 The precursor solution was mixed with the HA solution obtained in step 2, and stirred ...

Embodiment 2

[0038] Step 1, preparation of BaTiO 3 Precursor solution: first weigh 7.5g BaCl 2 2H 2 O was added with 30mL deionized water and stirred until it was completely dissolved, and another 1.8g ethanolamine was weighed into it, and stirred evenly to obtain a barium salt solution; then 10.5g C 16 h 36 o 4 Dissolve Ti in 15mL of absolute ethanol, stir evenly to obtain a titanium salt solution; finally weigh 7.5g NaOH, slowly dissolve in 30mL deionized water one by one to obtain a strong alkali solution; mix the barium salt solution, titanium salt solution and strong alkali solution and stir evenly , to obtain a white turbid liquid, which is BaTiO3 precursor solution;

[0039] Step 2, preparing HA solution: Weigh 10g of commercial HA nanopowder and dissolve it in 50mL of absolute ethanol, stir evenly to obtain HA solution;

[0040] Step 3, preparation of BaTiO 3 / HA precursor solution: the BaTiO obtained in step 1 3 The precursor solution is mixed with the HA solution obtained ...

Embodiment 3

[0044] Step 1, preparation of BaTiO 3 Precursor solution: first weigh 10.5g BaCl 2 2H 2 O was added with 60mL deionized water and stirred until completely dissolved, and another 3.6g ethanolamine was weighed into it, and stirred evenly to obtain a barium salt solution; then weighed 21g C 16 h 36 o 4 Dissolve Ti in 30mL of absolute ethanol, stir evenly to obtain a titanium salt solution; finally weigh 15g NaOH, slowly dissolve in 60mL deionized water one by one to obtain a strong alkali solution; mix the barium salt solution, titanium salt solution and strong alkali solution and stir evenly , to obtain a white turbid liquid, which is BaTiO3 precursor solution;

[0045] Step 2, preparation of HA solution: Weigh 10g of commercial HA nanopowder and dissolve it in 50mL of absolute ethanol, stir evenly to obtain HA solution;

[0046] Step 3, preparation of BaTiO 3 / HA precursor solution: the BaTiO obtained in step 1 3 The precursor solution was mixed with the HA solution obta...

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Abstract

The invention discloses a method for preparing tetragonal BaTiO3 / HA composite nanoparticles by a liquid-phase rotary evaporation method, wherein the method comprises the steps: step 1, preparing a BaTiO3 precursor solution by using BaCl2.2H2O and C16H36O4Ti as raw materials and ethanolamine as a reaction chelating agent; step 2, dispersing the HA nano powder into absolute ethyl alcohol to obtain an HA solution; step 3, mixing the BaTiO3 precursor solution with the HA solution to obtain a BaTiO3 / HA precursor solution; step 4, carrying out rotary evaporation on the BaTiO3 / HA precursor solution, carrying out centrifugal washing, and drying to obtain BaTiO3 / HA precursor powder; and step 5, calcining the BaTiO3 / HA precursor powder at a high temperature to obtain the tetragonal phase BaTiO3 / HA composite nanoparticles. The preparation method is low in cost, simple and easy to implement, and the synthesized tetragonal BaTiO3 / HA composite nanoparticles are high in performance, good in stability and suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of bioceramic materials, in particular to a liquid-phase rotary steaming method for preparing tetragonal BaTiO 3 / HA composite nanoparticles. Background technique [0002] Hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 , HA) is the main inorganic component of human bone tissue, has good biocompatibility, bioactivity and osteoconductivity, and is widely used in the field of biomaterials such as differentiation and mineralization of bone cells and bone tissue regeneration engineering. It is one of the most potential replacement materials for human hard tissues. HA in natural bone minerals mainly exists in the form of nanometer size. The ordered arrangement of these nano-HA constitutes the mechanical properties of bone tissue. Compared with conventional HA, it has better biocompatibility and osteoconductivity. The remarkable piezoelectric effect of human bone can prompt it to generate electrical signals under str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/626C04B35/468C04B35/447A61L27/54A61L27/12A61L27/10
Inventor 焦华靳洁晨赵康张鑫媛汤玉斐周雪蕊
Owner XIAN UNIV OF TECH
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