Antifouling titanium alloy material based on bionic super-smooth surface and preparation method and application thereof

A titanium alloy, substrate surface technology, applied in surface reaction electrolytic coatings, devices for coating liquids on surfaces, electrolytic coatings, etc., can solve problems such as biocide marine environmental hazards, genetic variation of marine organisms, and threats to human health, etc. Achieve significant anti-bacterial adhesion, reduce the amount of adhesion, and prevent a large amount of loss.

Inactive Publication Date: 2020-04-03
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, biocides can cause harm to the marine environment, cause genetic mutation and death of marine organisms, and ultimately threaten human health

Method used

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  • Antifouling titanium alloy material based on bionic super-smooth surface and preparation method and application thereof
  • Antifouling titanium alloy material based on bionic super-smooth surface and preparation method and application thereof
  • Antifouling titanium alloy material based on bionic super-smooth surface and preparation method and application thereof

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preparation example Construction

[0030] As an aspect of the technical solution of the present invention, it relates to a method for preparing an antifouling titanium alloy material based on a bionic super-slip surface, such as figure 1 Shown, described preparation method comprises:

[0031] Provide titanium alloy substrate;

[0032] The titanium alloy substrate is treated with an anodic oxidation method, and a nanostructure layer arranged in an array is formed on the surface of the titanium alloy substrate, and the nanostructure layer includes nanopores or nanotubes, wherein the diameter of the nanopores is 10- 30nm, the depth is 50-200nm, the diameter of the nanotube is 30-200nm, and the depth is 200-600nm;

[0033] Chemical modification of titanium alloy substrate with nanostructure layer with fluorosilane modifier;

[0034] And, a lubricant is applied to the surface of the chemically modified titanium alloy substrate to obtain an antifouling titanium alloy material based on a bionic super-slip surface. ...

Embodiment 1

[0071] The process of the bionic super-slippery surface prepared on the titanium alloy surface in this embodiment is as follows: figure 1 As shown, including anodic oxidation, chemical modification, and lubricant injection, the specific preparation steps are:

[0072] Pretreatment of titanium sheet: use 30 × 20 × 3mm Ti-6Al-4V titanium alloy as the substrate, use 400 mesh, 800 mesh, 1200 mesh, 2000 mesh, 3000 mesh SiC sandpaper to polish it, and then in absolute ethanol and deionized water for 20 minutes to remove oil stains.

[0073] Preparation of TiO by Anodic Oxidation 2 Nanostructure: Pretreated Ti-6Al-4V titanium alloy as anode, platinum sheet as cathode, 0.5M H 3 PO 4 The mixed solution with 0.14M NaF is used as the electrolyte, and a voltage of 10V is applied at 25°C for anodic oxidation, taken out after 30min, and dried at 80°C for use.

[0074] Chemical modification: prepare ethanol solution of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane as the modification solu...

Embodiment 2

[0078] The process of the bionic super-slippery surface prepared on the titanium alloy surface in this embodiment is as follows: figure 1 As shown, including anodic oxidation, chemical modification, and lubricant injection, the specific preparation steps are:

[0079] Pretreatment of titanium sheet: use 30 × 20 × 3mm Ti-6Al-4V titanium alloy as the substrate, use 400 mesh, 800 mesh, 1200 mesh, 2000 mesh, 3000 mesh SiC sandpaper to polish it, and then in absolute ethanol and deionized water for 20 minutes to remove oil stains.

[0080] Preparation of TiO by Anodic Oxidation 2 Nanostructure: Pretreated Ti-6Al-4V titanium alloy as anode, platinum sheet as cathode, 0.5M H 3 PO 4 The mixed solution with 0.14M NaF is used as the electrolyte, and a voltage of 15V is applied at 25°C for anodic oxidation, taken out after 30min, and dried at 80°C for use.

[0081] Chemical modification: prepare ethanol solution of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane as the modification solu...

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Abstract

The invention discloses an antifouling titanium alloy material based on a bionic super-smooth surface and a preparation method and application thereof. The preparation method comprises the steps: a titanium alloy substrate is treated through an anodic oxidation method, a nanostructure layer arranged in an array mode is formed on the surface of the titanium alloy substrate, and the nanostructure layer comprises nanopores or nanotubes with different morphologies and / or sizes; chemical modification is carried out on the titanium alloy substrate with the nanostructure layer by using a fluorosilanemodifier; and a lubricant is applied to the surface of the titanium alloy substrate subjected to chemical modification, and the antifouling titanium alloy material based on the bionic super-smooth surface is obtained. The bionic super-smooth surface can obviously reduce the attachment amount of bacteria on the surface of the titanium alloy, has a remarkable antibacterial attachment effect and anexcellent slow release effect, and meanwhile, the preparation method of the bionic super-smooth surface is a green, environment-friendly and efficient antifouling method and has a wider application prospect in the marine antifouling field.

Description

technical field [0001] The invention relates to an antifouling titanium alloy material, in particular to an antifouling titanium alloy material based on a bionic super-slip surface and a preparation method thereof, and an antifouling method for preparing a bionic super-slip surface on a titanium alloy, which belongs to marine Antifouling coating technology field. Background technique [0002] Adhesion and deposition of marine organisms on marine equipment can lead to serious biofouling problems, such as pipeline blockage, increased gravity and frictional resistance of ships, and corrosion of marine devices, which cause huge losses to the marine economy. Titanium alloys are widely used in marine environments due to their excellent mechanical properties and corrosion resistance, but due to their good biocompatibility, they face more serious problems of biofouling, which limits their application in marine environments. There are many kinds of antifouling technologies at presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/26B05D7/14
CPCB05D7/14B05D2202/35C25D11/26
Inventor 赵文杰王艳君吴文婷王立平薛群基
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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