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A kind of micro-arc oxidation film layer of medical titanium implant and its preparation method

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

Active Publication Date: 2018-07-10
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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  • A kind of micro-arc oxidation film layer of medical titanium implant and its preparation method
  • A kind of micro-arc oxidation film layer of medical titanium implant and its preparation method
  • A kind of micro-arc oxidation film layer of medical titanium implant and its preparation method

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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 turn until the surface is uniform and bright.

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

[0055] (3) Pickling treatment: pickling with a certain concentration of hydrofluoric acid and nitric acid for 20 s at a temperature of 25 °C, ultrasonic cleaning with deionized water for 1 min after removal, and drying for later use.

[0056] S2, preparation of micro-arc oxidation electrolyte

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

Embodiment 2

[0069] S1. Sample pretreatment:

[0070] (1) Mechanical polishing: 10mm x 10mm x 2mm TA4 titanium sheet sample, polished to a uniform and bright surface with 320#, 1000#, 1500#, 2000# metallographic sandpaper in turn.

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

[0072] (3) Pickling treatment: pickling with a certain concentration of hydrofluoric acid and nitric acid for 20 s at a temperature of 25 °C, ultrasonic cleaning with deionized water for 1 min after removal, and drying for later use.

[0073] S2, preparation of micro-arc oxidation electrolyte

[0074]Use deionized water to prepare 2 L micro-arc oxidation electrolyte, add 12 g calcium formate, 12 mL compound sulfuric acid, 4 mL hydrochloric acid...

Embodiment 3

[0083] S1. Sample pretreatment:

[0084] (1) Mechanical polishing: 10mm x 10mm x 2mm TA4 titanium sheet sample, polished to a uniform and bright surface with 320#, 1000#, 1500#, 2000# metallographic sandpaper in turn.

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

[0086] (3) Pickling treatment: pickling with a certain concentration of hydrofluoric acid and nitric acid for 20 s at a temperature of 25 °C, ultrasonic cleaning with deionized water for 1 min after removal, and drying for later use.

[0087] S2, preparation of micro-arc oxidation electrolyte

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

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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 colored micro-arc oxidation film layer with micron-scale porous biological activity and hydrophilicity and a preparation method thereof. Background technique [0002] As one of the important metal medical materials, titanium-based materials currently play an irreplaceable role in the field of medical implantation. Its elastic modulus close to bone, non-magnetic and low density, strong specific gravity, excellent chemical stability and good biocompatibility are important characteristics of titanium-based materials that can be widely used in the field of medical implants. However, titanium-based materials generally have problems such as low biological activity and long healing period after implantation into the human body. 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 Patents(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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