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Preparing method for in-site growth of titanium dioxide nanometer array film on surface of metal

A titanium dioxide, nano-array technology, applied in metal material coating process, solid-state chemical plating, coating and other directions, can solve the problems of reliability, narrow selection of matrix materials, etc., achieve good biological activity, simple preparation method, Good reproducibility of response

Inactive Publication Date: 2016-06-15
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problem of the reliability of the bone-implant interface, Kokubo proposed a biomimetic method, first pretreating the titanium surface, and then heating it to obtain titanium dioxide on the surface, and the titanium hydroxyl (Ti-OH) on the surface can be used under biomimetic conditions. However, the crystalline titanium dioxide layer is obtained by oxidation of the titanium matrix itself, and at the same time, it is limited by high temperature heating conditions, so that the selection range of the matrix material is very narrow, and the shape of the titanium matrix material is also very strict. requirements

Method used

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  • Preparing method for in-site growth of titanium dioxide nanometer array film on surface of metal
  • Preparing method for in-site growth of titanium dioxide nanometer array film on surface of metal
  • Preparing method for in-site growth of titanium dioxide nanometer array film on surface of metal

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Embodiment 1

[0033] refer to figure 1 with figure 2 , a method for preparing a titanium dioxide nano-array film grown in situ on a metal surface, the method comprising the steps of:

[0034] 1. Preparatory work: Clean the pure titanium of 10×10×0.1mm with acetone and deionized water in turn for 3 to 4 times, and place it in H 2 o 2 Soak in (30%wt) at 80°C for 1 hour, take it out and wash it for later use.

[0035] 2. Solution preparation: Add 61.54g of hydrochloric acid into 200ml of deionized water and mix thoroughly, take 0.78g of H 2 o 2 (30%wt) was added acidic aqueous solution, and 0.90g of titanium oxysulfate TiOSO 4 Powder added H 2 o2 For an acidic solution, take 16.35g of dehydrated ethanol and add the mixed solution, and make the volume 300ml with deionized water to obtain 0.02mol / LTiOSO 4 Handling solution.

[0036] 3. Reaction steps: put pure titanium and treatment solution in a container at the same time, react at 170°C for 2 hours, take out the substrate after the re...

Embodiment 2

[0039] refer to image 3 with Figure 4 , a method for preparing a titanium dioxide nano-array film grown in situ on a metal surface, the method comprising the steps of:

[0040] 1, preparatory work: with embodiment 1;

[0041] 2. Solution preparation: Add 61.54g of hydrochloric acid into 200ml of deionized water and mix thoroughly, take 5.4g of TiCl 3 Add an acidic aqueous solution, take 16.35g of absolute ethanol and add to the mixed solution, and set the volume to 300ml with deionized water to obtain 0.02mol / LTiCl 3 Handling solution.

[0042] 3. Reaction steps: put pure titanium and treatment solution in a container at the same time, react at 170°C for 2 hours, take out the substrate after the reaction, and wash with deionized water to obtain a titanium dioxide nano-array film on the surface of the substrate.

Embodiment 3

[0044] refer to Figure 5 , a method for preparing a titanium dioxide nano-array film grown in situ on a metal surface, the method comprising the steps of:

[0045] 1. Preparation: Clean 10×10×0.1mm Ti-6Al-4V with acetone and deionized water in turn for 3 to 4 times, and place in H 2 o 2 Soak in (30%wt) at 80°C for 1 hour, take it out and wash it for later use.

[0046] 2. Solution preparation: Add 61.54g of hydrochloric acid into 200ml of deionized water and mix thoroughly, take 0.78g of H 2 o 2 (30%wt) was added acidic aqueous solution, and 0.90g of TiOSO 4 Powder added H 2 o 2 For acidic solution, take 16.35g of dehydrated ethanol and add the mixed solution, make 300ml of deionized water to obtain 0.02mol / LTiOSO 4 Handling solution.

[0047] 3. Reaction steps: put Ti-6Al-4V and the treatment solution in the container at the same time, react at 170°C for 2 hours, take out the substrate after the reaction is completed, and after cleaning with deionized water, titanium...

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Abstract

The invention relates to a method for preparing a titanium dioxide nano-array film grown in situ on a metal surface, comprising the following steps: (1) preparing a treatment solution: mixing hydrochloric acid and an inorganic titanium salt to obtain a precursor solution, and then adding alcohol to the precursor solution, Mix well and evenly to make a treatment solution, the molar concentration of titanium ions in the treatment solution is 0.01-0.08mol / L; (2) deposition treatment of titanium dioxide nano-array film: the metal substrate and the treatment solution are placed in the container at the same time, React at 150-200° C. for 1-6 hours, take out the substrate after the reaction, and wash with deionized water to obtain a titanium dioxide nano-array film on the surface of the substrate. The preparation method of the invention is simple, the reaction repeatability is good, and the film can be directly prepared on the surface of the irregular metal substrate, and the film has good biological activity.

Description

technical field [0001] The invention relates to a method for preparing a titanium dioxide nano-array thin film grown in situ on a metal surface, which improves the biological activity of the surface by generating a specific thin film. Background technique [0002] Titanium and its alloys are biologically inert materials in nature, and there is only a mechanical fit with bone, rather than a strong chemical osseointegration. Therefore, the formation of a good titanium implant-bone tissue interface is important to ensure the success of implant repair. Factors, but also a key issue faced by this type of transplant surgery. Studies in recent years have shown that changing the structure and chemical composition of titanium surface oxide film through physical, chemical and electrochemical surface modification methods can endow titanium metal with biological activity, thereby realizing the bioactive combination between materials and hard tissues in vivo. [0003] In 1992, Cotell et...

Claims

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Application Information

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IPC IPC(8): C23C20/08
CPCC23C20/08
Inventor 肖帆江光强柳星竹陈劲宇姜珍兰
Owner ZHEJIANG UNIV OF TECH
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