Method for preparing bioactive coating on surface of 3D printed titanium or titanium alloy

A bioactive, 3D printing technology, used in surface reaction electrolytic coatings, coatings, electrolytic coatings, etc., can solve problems such as inability to prepare ideal nanoscale structures and roughness, achieve excellent biological activity, enhance adhesion, and improve quality. Effect

Active Publication Date: 2020-12-08
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the roughness and anisotropy of the surface of the material prepared by 3D printing, the ideal nanoscale structure cannot be prepared on the surface of the material prepared by 3D printing. Therefore, a bioactive coating is needed on the surface of the material prepared by 3D printing Methods

Method used

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  • Method for preparing bioactive coating on surface of 3D printed titanium or titanium alloy
  • Method for preparing bioactive coating on surface of 3D printed titanium or titanium alloy
  • Method for preparing bioactive coating on surface of 3D printed titanium or titanium alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0025] This embodiment includes the following steps:

[0026] Step 1. Surface-treating the titanium alloy material to obtain the surface-treated titanium alloy material; the titanium alloy material is TC4 titanium alloy prepared by 3D printing; the surface treatment process is: cleaning the titanium alloy material with high-pressure water , and then perform etching treatment in an etching solution, then use running water to clean, and then dry in deionized water after ultrasonic; the pressure of the high-pressure water is 2MPa, and the time for high-pressure water cleaning is 10min, and the etching solution is made of HF solution, HNO with a mass ratio of 1:3:10 3 solution and deionized water, the mass concentration of the HF solution is 40%, the HNO 3 The mass concentration of the solution is 68%, the temperature of the etching treatment is 25° C., the time is 2 minutes, and the time of the ultrasonic treatment is 15 minutes;

[0027] Step 2. Perform anodic oxidation treatm...

Embodiment 2

[0051] This embodiment includes the following steps:

[0052] Step 1. Surface treatment is carried out on the titanium material to obtain the titanium material after surface treatment; the titanium material is TA2 titanium material prepared by 3D printing; the process of the surface treatment is: the titanium material is cleaned with high-pressure water, and then the Carry out etching treatment in the etching solution, then use running water to clean, and then dry after ultrasonic in deionized water; The pressure of the high-pressure water is 3MPa, and the time of high-pressure water cleaning is 5min, and the mass ratio of the etching solution is 1 : 5:12 HF solution, HNO 3 solution and deionized water, the mass concentration of the HF solution is 40%, the HNO 3 The mass concentration of the solution is 68%, the temperature of the etching treatment is 24° C., the time is 1 min, and the time of the ultrasonic treatment is 20 min;

[0053]Step 2. Anodizing the surface-treated ...

Embodiment 3

[0056] This embodiment includes the following steps:

[0057] Step 1. The titanium alloy material is subjected to surface treatment to obtain the titanium alloy material after surface treatment; the titanium alloy material is a TB2 titanium alloy material prepared by 3D printing; the surface treatment process is: the titanium alloy material is treated with high-pressure water After cleaning, etch in an etching solution, then wash with running water, and then dry in deionized water after ultrasonic; the pressure of the high-pressure water is 2.5MPa, and the time for high-pressure water cleaning is 8min. The solution consists of HF solution, HNO with a mass ratio of 1:4:11 3 solution and deionized water, the mass concentration of the HF solution is 40%, the HNO 3 The mass concentration of the solution is 68%, the temperature of the etching treatment is 26° C., the time is 1 min, and the time of the ultrasonic treatment is 30 min;

[0058] Step 2. Perform anodic oxidation treat...

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Abstract

The invention discloses a method for preparing a bioactive coating on the surface of 3D printed titanium or titanium alloy. The method comprises the following steps: 1. surface treatment is conductedon titanium or titanium alloy to obtain surface-treated titanium or titanium alloy; and 2, anodic oxidation treatment is conducted on the surface-treated titanium or titanium alloy to obtain the titanium or titanium alloy with the bioactive coating on the surface. According to the method, through surface treatment, spherical powder particles in bad combination are removed, the film forming rate and stability of subsequent anodic oxidation are improved, the quality of the bioactive coating is improved, ]through anodic oxidation treatment, construction of a nanoscale structure on the surface oftitanium or titanium alloy is completed, so that the biological activity of the titanium or titanium alloy is improved, and the prepared bioactive coating is a TiO2 periosteum-like layer with nanoscale holes, is firmly combined with a substrate, is beneficial to better adhesion, differentiation and proliferation of cells on the surface of the bioactive coating, and is an ideal medical implant material.

Description

technical field [0001] The invention belongs to the technical field of medical titanium alloy surface treatment, and in particular relates to a method for preparing a bioactive coating on the surface of 3D printed titanium or titanium alloy. Background technique [0002] Titanium or titanium alloy, due to its excellent mechanical properties and excellent biocompatibility, is currently the mainstream medical material in clinical practice. However, there are still problems such as excessive elastic modulus and mismatch between biomechanical properties and human bone tissue, and the porous structure can just solve this problem. The porous structure can not only reduce the elastic modulus of titanium or titanium alloy, but also provide a place for the proliferation of bone cells, and the holes can allow nutrients to enter the interior of the implant, promote the recombination of the implant and human bone, and reduce inflammation happened. The emergence of 3D printing technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/26B33Y40/20A61L27/06A61L27/30A61L27/50A61L27/56
CPCA61L27/06A61L27/306A61L27/50A61L27/56A61L2400/18A61L2420/02A61L2430/02B33Y40/20C25D11/26
Inventor 王培李争显李宏战王彦峰李少龙张长伟罗倩
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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