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Preparation method of titanium oxide nanotube array-silver composite coating material

A technology of titanium oxide nanotubes and composite coatings, applied in coatings, electrolytic coatings, nanotechnology, etc., can solve problems such as uneven antibacterial properties, achieve uniform biological activity, stabilize antibacterial properties, and reduce preparation costs

Inactive Publication Date: 2017-01-25
CHINA WEAPON SCI ACADEMY NINGBO BRANCH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this method, ultraviolet light is used to induce uniform distribution of silver particles. For isomers, due to the shielding of the structure, ultraviolet light cannot be directly irradiated or irradiated to certain areas, which will easily lead to silver particles in some areas. Agglomeration, resulting in uneven antimicrobial properties

Method used

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  • Preparation method of titanium oxide nanotube array-silver composite coating material
  • Preparation method of titanium oxide nanotube array-silver composite coating material
  • Preparation method of titanium oxide nanotube array-silver composite coating material

Examples

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Embodiment 1

[0027] The preparation method of the titanium oxide nanotube array-silver composite coating material of the present embodiment comprises the following steps:

[0028] (1) Preparation of titanium oxide nanotube arrays: using pure titanium as the substrate, the surface is polished by metallographic sandpaper, cleaned and dried as the anode, the spectrally pure graphite sheet is used as the cathode, and 0.5wt% HF solution is used as the electrolyte. After anodizing at 10V for 20 minutes, take it out, wash it with distilled water, and dry it at 100°C for later use;

[0029] (2)AgNO 3 Preparation of soaking solution: Weigh 2.2g of silver nitrate and dissolve it in 10mL of distilled water to obtain AgNO 3 Soaking solution;

[0030] (3) Soaking: Under the condition of avoiding light, soak the titanium oxide nanotube array dried in step (1) in AgNO 3 5 minutes in the soaking solution;

[0031] (4) Heat treatment: wash the surface of the titanium oxide nanotube array soaked in step...

Embodiment 2

[0034] The preparation method of the titanium oxide nanotube array-silver composite coating material of the present embodiment comprises the following steps:

[0035] (1) Preparation of titanium oxide nanotube arrays: using pure titanium as the substrate, the surface is polished with metallographic sandpaper, cleaned and dried as the anode, the spectrally pure graphite sheet is used as the cathode, and 0.4wt% HF solution is used as the electrolyte. After anodizing at 20V for 20 minutes, take it out, wash it with distilled water, and dry it at 80°C for later use;

[0036] (2)AgNO 3 Preparation of soaking solution: Weigh 22g of silver nitrate and dissolve in 10mL of distilled water to obtain AgNO 3 Soaking solution;

[0037] (3) Soaking: Under the condition of avoiding light, soak the titanium oxide nanotube array dried in step (1) in AgNO 3 8 minutes in the soaking solution;

[0038] (4) Heat treatment: Clean the surface of the titanium oxide nanotube array soaked in step (...

Embodiment 3

[0041] The preparation method of the titanium oxide nanotube array-silver composite coating material of the present embodiment comprises the following steps:

[0042] (1) Preparation of titanium oxide nanotube arrays: using pure titanium as a substrate, the surface is polished with metallographic sandpaper, cleaned, and dried as an anode, with a spectrally pure graphite sheet as a cathode, and 0.1wt% HF solution as an electrolyte. After anodizing at 30V for 40 minutes, take it out, wash it with distilled water, and dry it at 100°C for later use;

[0043] (2)AgNO 3 Preparation of soaking solution: Weigh 10g of silver nitrate and dissolve in 10mL of distilled water to obtain AgNO 3 Soaking solution;

[0044] (3) Soaking: Under the condition of avoiding light, soak the titanium oxide nanotube array dried in step (1) in AgNO 3 10min in soaking solution;

[0045] (4) Heat treatment: wash the surface of the titanium oxide nanotube array soaked in step (3) with distilled water an...

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Abstract

The invention relates to a preparation method of a titanium oxide nano-tube array-silver composite coating material. The preparation method comprises the following steps of preparing a titanium oxide nano-tube array having no bioactivity and no antibacterial property, immersing the titanium oxide nano-tube array so that tubal cavities of the titanium oxide nano-tube array are filled with silver nitrate, and carrying out heat treatment so that silver nitrate in the tubal cavities is transformed into silver particles, wherein the silver particles go deep into the titanium-based coating so that dissociation of the silver particles from the base is avoided and long-term biological activity is obtained. Through the heat treatment process, agglomeration of the silver particles in the local zone is avoided, the silver particles are uniformly distributed and uniform and stable antibacterial activity of the material is guaranteed. Through heat treatment, the titanium oxide nano-tubes are transformed into anatase-type titanium oxide nano-tubes having biological activity. Compared with the prior art, the preparation method realizes more stable and uniform biological activity by heat treatment. Through use of a pure AgNO3 solution as an immersion liquid, a cost is reduced. The heat treatment process is conducive to industrial production.

Description

technical field [0001] The invention relates to the technical field of preparation of biological materials for bone repair, especially in the field of preparation of composite coating materials with antibacterial properties and biological activity on the surface of medical titanium alloys, and specifically refers to the preparation of a titanium oxide nanotube array-silver composite coating material method. Background technique [0002] Titanium and titanium alloys are widely used in bone repair due to their good biocompatibility and strong mechanical properties. However, as biologically inert materials, they cannot form chemical bonds with bone tissue. The heterogeneity of the host exists, which is prone to deformation and loosening, resulting in failure of the implant. After the surface modification technology is used to endow it with biological activity, new bone can be directly deposited on the surface of titanium alloy to form osseointegration, avoiding the formation o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/26C23C18/08C23F17/00B82Y40/00B82Y30/00
Inventor 田甜刘子瑜王凡马兰董海成孙远东田小亭金英郝丽萍
Owner CHINA WEAPON SCI ACADEMY NINGBO BRANCH
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