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Method and application for preparing titanium nanotube iodine coating by chemical vapor deposition method

A technology of chemical vapor deposition and titanium nanotubes, which is applied in the field of materials, can solve the problems of difficulty in forming uniform coatings, the health hazards of organic solvents, and the inapplicability of substrates sensitive to organic solvents, so as to promote biocompatibility and inhibit resistance. The effect of bacterial infection

Active Publication Date: 2020-09-25
NINGBO INST OF NORTHWESTERN POLYTECHNICAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional liquid-phase polymer coating preparation methods (such as spray coating, dip coating, spin coating, etc.) are difficult to control the coating thickness, and it is difficult to form a uniform coating on the surface with complex structure; moreover, the coating preparation process often requires the use of organic solvents, so it is not suitable for substrates sensitive to organic solvents, and at the same time, the residue of organic solvents will cause harm to human health

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  • Method and application for preparing titanium nanotube iodine coating by chemical vapor deposition method
  • Method and application for preparing titanium nanotube iodine coating by chemical vapor deposition method
  • Method and application for preparing titanium nanotube iodine coating by chemical vapor deposition method

Examples

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Effect test

Embodiment 1

[0044] A kind of chemical vapor deposition method of the present invention prepares the method for titanium nanotube iodine coating, comprises the following steps:

[0045] First cut the pure titanium (Ti) sheet into a rectangular sample of a certain size, and polish it with 400#, 800# and 2000# metallographic sandpaper respectively until the surface is smooth without scratches. Rinse the wear debris with deionized water, then ultrasonically clean with acetone to remove the oil on the titanium surface, and finally wash with deionized water, dry it and set it aside.

[0046] Mix 1.26g of ammonium fluoride, 20ml of ultrapure water and 180ml of glycerol to make an electrolyte solution. Add a magnetic stirrer to the electrolyte, place it on a magnetic stirrer and stir at a speed of 500 r / min, and stir for 1 hour to make the electrolyte evenly mixed.

[0047] A constant voltage direct current anodizing method is adopted, the pretreated Ti sheet is used as the anode, and the platin...

Embodiment 2

[0067] A kind of chemical vapor deposition method of the present invention prepares the method for titanium nanotube iodine coating, comprises the following steps:

[0068] First cut the pure titanium (Ti) sheet into a rectangular sample of a certain size, and polish it with 400#, 800# and 2000# metallographic sandpaper respectively until the surface is smooth without scratches. Rinse the wear debris with deionized water, then ultrasonically clean with acetone to remove the oil on the titanium surface, and finally wash with deionized water, dry it and set it aside.

[0069] Mix 1.26g of ammonium fluoride, 20ml of ultrapure water and 180ml of glycerol to make an electrolyte solution. Add a magnetic stirrer to the electrolyte, place it on a magnetic stirrer and stir at a speed of 500 r / min, and stir for 1 hour to make the electrolyte evenly mixed.

[0070] A constant voltage direct current anodizing method is adopted, the pretreated Ti sheet is used as the anode, and the platin...

Embodiment 3

[0075] A kind of chemical vapor deposition method of the present invention prepares the method for titanium nanotube iodine coating, comprises the following steps:

[0076] First cut the pure titanium (Ti) sheet into a rectangular sample of a certain size, and polish it with 400#, 800# and 2000# metallographic sandpaper respectively until the surface is smooth without scratches. Rinse the wear debris with deionized water, then ultrasonically clean with acetone to remove the oil on the titanium surface, and finally wash with deionized water, dry it and set it aside.

[0077] Mix 1.26g of ammonium fluoride, 20ml of ultrapure water and 180ml of glycerol to make an electrolyte solution. Add a magnetic stirrer to the electrolyte, place it on a magnetic stirrer and stir at a speed of 500 r / min, and stir for 1 hour to make the electrolyte evenly mixed.

[0078] A constant voltage direct current anodizing method is adopted, the pretreated Ti sheet is used as the anode, and the platin...

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Abstract

The invention discloses a method and an application for preparing a titanium nanotube iodine coating by a chemical vapor deposition method, and belongs to the technical field of materials. In order toovercome the shortcoming that iodine is not easily fixed on the surface of medical titanium implants, the invention provides a simple and efficient method for preparing an iodine coating. Firstly, atitanium nanotube (TNT) with controllable tube diameter and tube length is prepared on the surface of the titanium material by constant voltage direct current anodic oxidation method, and then 1-vinyl-2-pyrrolidone (VP) and crosslinking molecule glycol diacrylate (EGDA) are copolymerized and deposited on the surface of the TNT by a high polymer chemical vapor deposition method under a mild reaction condition, so as to form TNT-P (VP-CO-EGDA); then TNP-P (VP-CO-EGDA)-I is prepared by complexing with iodine (I) under the mild condition, and I is fixed on the surface of the TNT, so that the titanium material has the function of killing microorganisms and has an obvious effect on drug-resistant bacteria. The insolubility of P (VP-CO-EGDA) on the surface of TNT is conducive to fix I on the surface of medical titanium equipment, so the infection caused by bacteria on the surface is reduced, and drug resistance is not produced.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to the preparation of titanium nanotube iodine coating, in particular to a method and application for preparing a poly-1-vinyl-2-pyrrolidone thin film on the surface of titanium nanotubes by chemical vapor deposition and immobilizing iodine. Background technique [0002] According to statistics, an average of 2%-5% of implant surgery failures are caused by biomaterial-related infections. Biomedical titanium (Ti) materials have been widely used in hard tissue implant surgery due to their excellent mechanical properties and good corrosion resistance. However, since Ti itself does not have antibacterial properties, it is very susceptible to bacterial infection and generates biofilm on its surface, resulting in infection. [0003] A large number of studies have shown that anodic oxidation technology can construct highly ordered titanium nanotube arrays (TNT) on the surface of titanium ...

Claims

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Application Information

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IPC IPC(8): C25D11/26C08F226/10C08F222/14C09D5/14C09D139/06C09D135/02A61L27/06A61L27/34A61L27/54
CPCA61L27/06A61L27/34A61L27/54A61L2300/404C08F226/10C09D5/14C09D135/02C09D139/06C25D11/26C08F222/102C08K3/02
Inventor 宋青李鹏黄维霍静静高玲玲刘新月
Owner NINGBO INST OF NORTHWESTERN POLYTECHNICAL UNIV
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