Medical titanium implant micro-arc oxidation film layer and preparation method

A technology of micro-arc oxidation and oxide film, which is applied in coatings, surface reaction electrolytic coatings, electrolytic coatings, etc., can solve the problems of uncontrollable surface morphology of the film, poor hydrophilicity of the film, and low bonding strength, etc. Achieve the effect of improving biological locking strength, promoting adsorption, and improving migration

Active Publication Date: 2016-05-04
百齿泰(厦门)医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a micro-arc oxidation film layer for medical titanium implants, which can solve the problems of uncontrollable surface morphology, low bonding strength, and relatively hydrophilic film layer. Problems such as poor and relatively single color

Method used

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  • Medical titanium implant micro-arc oxidation film layer and preparation method
  • Medical titanium implant micro-arc oxidation film layer and preparation method
  • Medical titanium implant micro-arc oxidation film layer and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0052] S1. Sample pretreatment:

[0053] (1) Mechanical polishing: Provide a 10mm×10mm×2mm TA4 titanium sheet sample, which is polished with 320#, 1000#, 1500#, 2000# metallographic sandpaper in sequence until the surface is even and bright.

[0054] (2) Degreasing and degreasing: Put the polished TA4 titanium sheet into a beaker filled with distilled water, after ultrasonic cleaning for 5 minutes, put it into ethanol, acetone, and deionized water for ultrasonic treatment for 10 minutes, take it out and place it at 60°C Dry in the oven for later use.

[0055] (3) Pickling treatment: use a certain concentration of hydrofluoric acid and nitric acid pickling solution to pickle at a temperature of 25°C for 20s, take it out and ultrasonically clean it with deionized water for 1min, and dry it before use.

[0056] S2. Preparation of Microarc Oxidation Electrolyte

[0057] Use deionized water to prepare 2L of micro-arc oxidation electrolyte, add 2g of calcium formate, 4mL of compou...

Embodiment 2

[0069] S1. Sample pretreatment:

[0070] (1) Mechanical polishing: 10mm × 10mm × 2mm TA4 titanium sheet sample is polished with 320#, 1000#, 1500#, 2000# metallographic sandpaper in sequence until the surface is even and bright.

[0071] (2) Degreasing and degreasing: Put the polished TA4 titanium sheet into a beaker filled with distilled water, after ultrasonic cleaning for 5 minutes, put it into ethanol, acetone, and deionized water for ultrasonic treatment for 10 minutes, take it out and place it at 60°C Dry in the oven for later use.

[0072] (3) Pickling treatment: use a certain concentration of hydrofluoric acid and nitric acid pickling solution to pickle at a temperature of 25°C for 20s, take it out and ultrasonically clean it with deionized water for 1min, and dry it before use.

[0073] S2. Preparation of Microarc Oxidation Electrolyte

[0074] Use deionized water to prepare 2L of micro-arc oxidation electrolyte, add 12g of calcium formate, 12mL of compound sulfuric...

Embodiment 3

[0083] S1. Sample pretreatment:

[0084] (1) Mechanical polishing: 10mm × 10mm × 2mm TA4 titanium sheet sample is polished with 320#, 1000#, 1500#, 2000# metallographic sandpaper in sequence until the surface is even and bright.

[0085] (2) Degreasing and degreasing: Put the polished TA4 titanium sheet into a beaker filled with distilled water, after ultrasonic cleaning for 5 minutes, put it into ethanol, acetone, and deionized water for ultrasonic treatment for 10 minutes, take it out and place it at 60°C Dry in the oven for later use.

[0086] (3) Pickling treatment: use a certain concentration of hydrofluoric acid and nitric acid pickling solution to pickle at a temperature of 25°C for 20s, take it out and ultrasonically clean it with deionized water for 1min, and dry it before use.

[0087] S2. Preparation of Microarc Oxidation Electrolyte

[0088] Use deionized water to prepare 2L of micro-arc oxidation electrolyte, add 16g of calcium acetate, 6mL of sulfuric acid, 8mL...

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Abstract

The invention provides a medical titanium implant micro-arc oxidation film layer and a preparation method. The medical titanium implant micro-arc oxidation film layer comprises a matrix and an oxidization film layer formed on the surface of the matrix, wherein a plurality of micro holes are distributed in the surface of the oxidization film layer; the micro holes consist of a plurality of micro bosses and grooves; the bosses are inwards sunken to form concave holes; the grooves are distributed in the peripheries of the bosses; the bosses are protruded relative to the grooves; the grooves are in an irregular state; the adjacent grooves are communicated with each other; and the oxidation film layer has color. The film layer provided by the invention has hydrophilicity, high-strength binding force and color. The medical titanium implant micro-arc oxidation film layer is simple in operation and preparation process, is relatively low in cost, and the obtained film layer is excellent in performance, and is suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of surface treatment of titanium and its alloys, in particular to a micro-arc oxidation film layer with micron-scale porous biological activity and hydrophilic color and a preparation method. Background technique [0002] As one of the important metallic medical materials, titanium-based materials currently play an irreplaceable role in the field of medical implants. Its elastic modulus close to bone, non-magnetic and low density, strong specific strength, excellent chemical stability and good biocompatibility are the important characteristics that titanium-based materials can be widely used in the field of medical implants. However, after titanium-based materials are implanted into the human body, there are generally problems such as low biological activity and long healing period. After conventional surface modification, the surface film layer has problems such as low bonding strength and easy failure. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/26
CPCC25D11/26
Inventor 陈艳文王世强林志雄
Owner 百齿泰(厦门)医疗科技有限公司
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