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A kind of preparation method of titanium alloy surface medical coating

A titanium alloy and coating technology, which is applied in the field of preparation of medical coatings on the surface of titanium alloys, can solve the problems of induced inflammation, patient injury, and easy peeling off of the coating on the surface of titanium alloys, to prevent bacterial infection, excellent antibacterial properties, The effect of improving the bonding strength

Active Publication Date: 2022-02-15
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the long-term implantation process, due to the limited bonding strength between the coating and the substrate, the coating on the surface of the titanium alloy is easy to peel off, inducing inflammation and causing harm to the patient

Method used

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  • A kind of preparation method of titanium alloy surface medical coating
  • A kind of preparation method of titanium alloy surface medical coating
  • A kind of preparation method of titanium alloy surface medical coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a titanium alloy surface Cu-Ta 2 o 5 / Ta 2 o 5 / Ta 2 o 5 -TiO 2 / TiO 2 The preparation method of / Ti multilayer coating specifically comprises the following steps:

[0043] S1. Pretreatment: for titanium alloy, Ta 2 o 5 The target, Ti target and Cu target are pretreated respectively. Specifically, use 240#, 400#, 800#, 1200# and 2000# SiC sandpaper to polish the titanium alloy in sequence, and then use W5 diamond grinding paste and W1. 5 Finely polish the aluminum oxide polishing solution separately until the surface of the titanium alloy reaches a mirror effect, then ultrasonically clean it in acetone and absolute ethanol for 15 minutes, and then put it into a vacuum desiccator to dry, and put the dried titanium alloy and target Put it into a magnetron sputtering coating machine, the distance between the titanium alloy and the target is 75mm, and use plasma to clean the titanium alloy and the target in sequence;

[0044] S2. Using tita...

Embodiment 2

[0050] This embodiment provides a titanium alloy surface Cu-Ta 2 o 5 / Ta 2 o 5 / Ta 2 o 5 -TiO 2 / TiO 2 The preparation method of / Ti multilayer coating specifically comprises the following steps:

[0051] S1. Pretreatment: for titanium alloy, Ta 2 o 5 The target, Ti target and Cu target are pretreated respectively. Specifically, use 240#, 400#, 800#, 1200# and 2000# SiC sandpaper to polish the titanium alloy in sequence, and then use W5 diamond grinding paste and W1. 5 Finely polish the aluminum oxide polishing solution separately until the surface of the titanium alloy reaches a mirror effect, then ultrasonically clean it in acetone and absolute ethanol for 15 minutes, and then put it into a vacuum desiccator to dry, and put the dried titanium alloy and target Put it into a magnetron sputtering coating machine, the distance between the titanium alloy and the target is 75mm, and use plasma to clean the titanium alloy and the target in sequence;

[0052] S2. Using tita...

Embodiment 3

[0058] This embodiment provides a titanium alloy surface Cu-Ta 2 o 5 / Ta 2 o 5 / Ta 2 o 5 -TiO 2 / TiO 2 The preparation method of / Ti multilayer coating specifically comprises the following steps:

[0059] S1. Pretreatment: for titanium alloy, Ta 2 o 5 The target, Ti target and Cu target are pretreated respectively. Specifically, use 240#, 400#, 800#, 1200# and 2000# SiC sandpaper to polish the titanium alloy in sequence, and then use W5 diamond grinding paste and W1. 5 Finely polish the aluminum oxide polishing solution separately until the surface of the titanium alloy reaches a mirror effect, then ultrasonically clean it in acetone and absolute ethanol for 15 minutes, and then put it into a vacuum desiccator to dry, and put the dried titanium alloy and target Put it into a magnetron sputtering coating machine, the distance between the titanium alloy and the target is 75mm, and use plasma to clean the titanium alloy and the target in sequence;

[0060] S2. Using tita...

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Abstract

The invention discloses a method for preparing a medical coating on the surface of a titanium alloy. The Ti6Al4V titanium alloy is used as a substrate, and Ta 2 o 5 The target material, Ti target material and Cu target material are prepared by magnetron sputtering. Cu-Ta prepared by the present invention 2 o 5 / Ta 2 o 5 / Ta 2 o 5 -TiO 2 / TiO 2 The interfacial stress of the Ti / Ti multilayer coating is small, the bonding strength of the film base is high, and it has good corrosion resistance and antibacterial performance.

Description

technical field [0001] The invention relates to the technical field of medical coatings on titanium alloy surfaces, and more particularly, to a method for preparing medical coatings on titanium alloy surfaces. Background technique [0002] Ti6Al4V titanium alloy has good comprehensive properties in terms of corrosion resistance, mechanics, and machining. It is widely used in aerospace, chemical and biomedical engineering and other fields, and has become the material of choice for medical implants. However, clinical studies have found that Ti6Al4V titanium alloys during service will be corroded by body fluids and release toxic and side effects of aluminum, vanadium and other metal ions, which induce inflammation, allergies and poisoning reactions in the human body, and in severe cases lead to implant surgery failure. In addition, during the operation, bacteria will adhere to the surface of the implant to multiply and form a biofilm, causing postoperative infection. Therefore...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/16C23C14/08C23C14/02C22C14/00
CPCC23C14/35C23C14/165C23C14/0036C23C14/083C23C14/022C22C14/00
Inventor 丁泽良王易周泉丁子彧张海波
Owner HUNAN UNIV OF TECH