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Antifouling and antibacterial treatment method for titanium and titanium alloy surface

A treatment method, a titanium alloy technology, is applied in the field of antifouling and antibacterial treatment of chemically modified betaine molecules and silver, which can solve the problems of antifouling and antibacterial effects, effects, etc., and achieve good antifouling and antibacterial performance, uniform surface, and easy operation. convenient effect

Inactive Publication Date: 2015-08-19
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the antifouling and antibacterial molecules such as chitosan and polyethylene glycol will be seriously affected when the pH value changes or the temperature changes, and the use in human implantation or marine environment will be greatly affected.

Method used

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  • Antifouling and antibacterial treatment method for titanium and titanium alloy surface
  • Antifouling and antibacterial treatment method for titanium and titanium alloy surface
  • Antifouling and antibacterial treatment method for titanium and titanium alloy surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The specific process of the antifouling and antibacterial treatment of titanium and titanium alloy surfaces in this embodiment is as follows:

[0021] (1), the surface of titanium or titanium alloy is ultrasonically cleaned and dried with acetone and deionized water successively, and plasma activation is carried out to obtain activated titanium metal;

[0022] (2), place the activated titanium metal on the top of the aminopropyltriethoxysilane-cyclohexane mixed solution, and vacuum vapor deposition in the desiccator for 12 hours to obtain Ti-Apts, wherein aminopropyltriethoxy The volume ratio of aminopropyltriethoxysilane and cyclohexane in the silane-cyclohexane mixed solution is 1:3;

[0023] (3) Dissolve dopamine in tris(hydroxymethyl)aminomethane hydrochloride-hydrochloric acid solution, stir in the dark for 12 hours to obtain a mixed solution, then place Ti-Apts in the mixed solution and stir for 24 hours, take out, rinse and dry , to obtain Ti-Dopa; wherein the c...

Embodiment 2

[0027] The specific process of the antifouling and antibacterial treatment of titanium and titanium alloy surfaces in this embodiment is as follows:

[0028] (1) ultrasonically cleaning and drying the titanium or titanium alloy surface with acetone and deionized water successively, and performing plasma activation to obtain activated titanium metal;

[0029] (2) place the activated titanium metal on the top of the aminopropyltrimethoxysilane-cyclohexane mixed solution, and vacuum vapor deposition in a desiccator for 2 hours to obtain Ti-Apts; wherein aminopropyltrimethoxysilane-cyclohexane The volume ratio of aminopropyltrimethoxysilane and cyclohexane in the hexane mixed solution is 1:1;

[0030](3), dissolve dopamine in tris(hydroxymethyl)aminomethane hydrochloride-hydrochloric acid solution, keep away from light and stir for 24 hours, then place Ti-Apts in this solution, stir for 48 hours, take out, rinse and dry, Obtain Ti-Dopa; wherein the concentration of tris(hydroxyme...

Embodiment 3

[0034] The specific process of the antifouling and antibacterial treatment of titanium and titanium alloy surfaces in this embodiment is as follows:

[0035] (1), the surface of titanium or titanium alloy is ultrasonically cleaned with acetone and deionized water successively, and dried to carry out plasma activation to obtain activated titanium metal;

[0036] (2) place the activated titanium metal on the top of the aminopropyltrimethoxysilane-cyclohexane mixed solution, and vacuum vapor deposition in a desiccator for 48 hours to obtain Ti-Apts; wherein aminopropyltrimethoxysilane-cyclohexane The volume ratio of aminopropyltrimethoxysilane and cyclohexane in the hexane mixed solution is 1:10;

[0037] (3) dissolve dopamine in tris(hydroxymethyl)aminomethane hydrochloride-hydrochloric acid solution, place Ti-Apts in this solution, stir for 1 hour, take out, rinse and dry to obtain Ti-Dopa; The concentration of hydroxymethyl)aminomethane hydrochloride-hydrochloric acid solutio...

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Abstract

The invention belongs to the technical field of biological fouling protection, and relates to an antifouling and antibacterial treatment method for a titanium and titanium alloy surface, which comprises the following steps: firstly, performing plasma activation on the titanium or titanium alloy surface, placing above a silane coupling agent and cyclohexane mixed solution, and vacuumizing a dryer for vapor deposition; then, placing titanium metal of which the surface is modified with silane coupling agent in a mixed solution containing dopamine and a hydrochloric acid solution of tris (hydroxymethyl) amino methane hydrochloride, and placing in a flask; adding methylbenzene and triethylamine, introducing nitrogen and dropwise adding bromo-isobutyryl bromide for reaction, then taking out, washing, blow-drying, and placing in another flask; sequentially adding 2,2'-Bipyridine, water, methanol and methy-propylene-acyloxy modified lycine, and then introducing nitrogen continuously; then adding cuprous bromide for performing polymerization, placing in a silver nitrate aqueous solution for reaction, and then washing thoroughly, thus realizing the antifouling and antibacterial treatment for the titanium metal surface. The process is simple, the operation is convenient, the suitable environment condition is wide, the broad-spectrum property is good, and the method has good antifouling and antibacterial performance.

Description

Technical field: [0001] The invention belongs to the technical field of biofouling protection, and relates to an antifouling and antibacterial treatment method for the surfaces of titanium and titanium alloys, in particular to an antifouling and antibacterial treatment method for chemically modifying betaine molecules and silver on the surfaces of titanium and titanium alloys. Background technique: [0002] Titanium and titanium alloys are widely used in ships, marine engineering and biomedicine due to their high specific strength, high corrosion resistance and excellent biocompatibility, including oil and gas platforms, seawater desalination systems, heat exchange equipment, medical equipment and Surgical orthopaedic materials, etc. Among the commonly used materials, titanium has poor anti-fouling performance and is easily fouled by biological adhesion, such as marine biological fouling on the surface of ship materials, bacterial adhesion and fouling on the surface of impla...

Claims

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Application Information

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IPC IPC(8): C23C18/42C23C18/18
Inventor 张金伟蔺存国王彩萍
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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