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A Method for Quickly Introducing Functional Ions on Titanium Alloy Surface

A titanium alloy and functional technology, applied in the surface functional modification treatment of titanium alloy medical implant materials, in the field of biomedicine, can solve the problem of low bonding strength between the coating and the substrate, the inability to prepare a uniform coating, and the poor bonding force of the coating and other problems, to achieve the effect of simple and rapid introduction method, low cost and good biological activity

Active Publication Date: 2021-06-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods all have obvious defects, such as the low preparation temperature of the sol-gel method, resulting in too many amorphous phases and weak coating adhesion; plasma spraying due to high cooling rate at high temperatures leads to thermal stress residues, coating and substrate The bonding strength is low, the price is expensive, and it is impossible to prepare a uniform coating on the surface of products with complex shapes such as dental implants

Method used

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  • A Method for Quickly Introducing Functional Ions on Titanium Alloy Surface
  • A Method for Quickly Introducing Functional Ions on Titanium Alloy Surface
  • A Method for Quickly Introducing Functional Ions on Titanium Alloy Surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The TC4 sample (diameter 12mm, thickness 2mm) is punched (hole diameter 2mm), and then polished with 400, 1200, 2000 mesh silicon carbide sandpaper in order to ensure that the surface is free of scale and smooth. Then, they were ultrasonically cleaned with ethanol and deionized water for 10 minutes respectively, and the pretreatment was completed after drying. The pretreated TC4 sample was used as the electrolytic anode and immersed in the micro-arc oxidation electrolyte, and the electrolytic cell was used as the electrolytic cathode. The electrolyte was 6.12g of β-glycerophosphate sodium, 35.2g of calcium acetate and 1.0L of deionized water. The temperature of the electrolyte is controlled at 12°C, and a square pulse is applied to the TC4 sample to make the electrolytic anode interact with the electrolyte solution to form a ceramic film. The positive pulse voltage of the square pulse is 350V, and the negative pulse voltage of the square pulse is 50V. Both the positive ...

Embodiment 2

[0044] The TC4 sample (diameter 12mm, thickness 2mm) is punched (hole diameter 2mm), and then polished with 400, 1200, 2000 mesh silicon carbide sandpaper in order to ensure that the surface is free of scale and smooth. Then, they were ultrasonically cleaned with ethanol and deionized water for 10 minutes respectively, and the pretreatment was completed after drying. The pretreated TC4 sample was used as the electrolytic anode and immersed in the micro-arc oxidation electrolyte, and the electrolytic cell was used as the electrolytic cathode. The electrolyte was 4.5g of β-glycerophosphate sodium, 40g of calcium gluconate and 1.0L of deionized water. Control the electrolyte temperature to 12°C, apply a square pulse on the TC4 sample to make the electrolytic anode interact with the electrolyte solution to form a ceramic film, the positive pulse voltage of the square pulse is 250V, and the negative pulse voltage of the square pulse is 30V; the positive pulse voltage and The freque...

Embodiment 3

[0047] 10 g of copper gluconate and 5 g of boric acid were added to 100 mL of water, and the pH of the solution was adjusted to 7 with ammonia water (mass fraction 28%). The prepared solution was transferred to a reactor, and TC4 after micro-arc oxidation in Example 1 was immersed in the solution, and the reactor was heated at 130° C. for 10 h. When the reaction system was naturally cooled to room temperature, TC4 was taken out, and TC4 was ultrasonicated in deionized water for 20 minutes, rinsed with deionized water, and finally dried in a vacuum oven at 50°C for 3 hours to prepare a calcium phosphate ceramic coating containing copper ions on the surface of TC4.

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Abstract

The invention discloses a method for quickly introducing functional ions on the surface of a titanium alloy, which belongs to the technical field of surface functional modification treatment of titanium alloy medical implant materials. First, TC4 is used as the electrolytic anode, and the electrolytic cell is used as the electrolytic cathode, and a volcanic porous coating is formed on the surface of the TC4 sample through the instant sintering of high temperature and high pressure plasma; then functional ions are introduced into the coating by using the hydrothermal reaction method, and at the same time Improve the hydrophilicity of the surface. A variety of functional ions are evenly distributed on the surface of the titanium alloy, which is conducive to increasing the adhesion and proliferation of osteoblasts. This method can not only prepare coatings on the surface of titanium alloys conveniently and quickly, but also introduce functional ions Cu, Zn, Mg, Ce, Sr, etc. to the coating surface by adjusting the composition of the solution in the subsequent hydrothermal process to improve the The antibacterial or osteogenic properties of biomedical metal materials have good application prospects in the fields of surface modification of medical implant materials.

Description

technical field [0001] The invention belongs to the technical field of surface functional modification treatment of titanium alloy medical implant materials, and specifically relates to a method for simply and quickly introducing one or more functional ions on the surface of titanium alloy by using micro-arc oxidation and hydrothermal reaction method, thereby improving The biological activity of titanium alloy has important application prospects in biomedicine and other fields. Background technique [0002] Human hard tissue replacement materials, such as artificial bone joints and dental implants, are an important part of biomaterials and have become one of the hotspots in biomaterials research. At present, among the artificial implant materials, titanium and its alloy materials are most widely used. Compared with other materials, titanium alloy has the advantages of non-magnetic, light weight, good toughness, good mechanical properties and biocompatibility. However, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/06A61L27/32A61L27/56A61L27/30A61L27/50A61L27/54C25D11/26
CPCA61L27/06A61L27/306A61L27/32A61L27/50A61L27/54A61L27/56A61L2300/102A61L2300/404A61L2300/412A61L2430/02A61L2430/12A61L2430/24C25D11/024C25D11/026C25D11/26
Inventor 李元元李冬冬魏永杰于吉红
Owner JILIN UNIV
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