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A kind of titanium alloy nano-coating with antibacterial function and preparation method thereof

A nano-coating, titanium alloy technology, applied in the direction of metal material coating process, coating, vacuum evaporation plating, etc., can solve the problems of heavy economic and mental burden of patients, rampant drug-resistant bacteria, aggravated antibiotics, etc., to achieve thin film Effects of improved surface roughness, improved film density, and reduced emission from large particles

Active Publication Date: 2020-05-19
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bacterial infections from medical devices can have disastrous consequences for patients when they occur
Patients need to undergo another 1-2 operations to remove the implanted medical device and remove the lesion, which will bring heavy economic and mental burden to the patient, and will also have a certain negative impact on the hospital and society.
Moreover, the use of antibiotics in medical drugs is increasing day by day, and the abuse of antibacterial drugs will lead to the spread of drug-resistant bacteria. Once extensive drug resistance occurs, even in routine operations such as caesarean section and hip replacement, patients will die from the risk of surgery complicated by infection will multiply

Method used

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  • A kind of titanium alloy nano-coating with antibacterial function and preparation method thereof
  • A kind of titanium alloy nano-coating with antibacterial function and preparation method thereof
  • A kind of titanium alloy nano-coating with antibacterial function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0019] Plating TiCuCe layer: adopt electric arc ion plating technology, target material is titanium-copper-cerium alloy target, copper content is successively in the target material of embodiment 1-5: 2%, 4%, 6%, 8%, 10% (mass percentage ); the cerium content is as follows: 0.05%, 0.06%, 0.07%, 0.08%, 0.09% (mass percentage).

[0020] The base material is made of medical pure titanium (the grade is TA1ELI), the size of the sample is 15mm×15mm×5mm, and the size of the coated surface is 15mm×15mm. Before coating, the surface of the sample is ground, polished, ultrasonically cleaned and dried, and then placed on the sample stage of the vacuum chamber until the vacuum degree in the vacuum chamber reaches 6×10 -3 At Pa, heat the vacuum chamber to 400°C, feed argon gas into the vacuum chamber, set the gas flow rate to 80 sccm, control the air pressure at 0.7 Pa, apply pulse negative bias voltage -800V to the substrate, and perform glow cleaning on the sample for 10 minutes; Then, a...

Embodiment 6-10

[0023] Plating TiCuCe layer: adopt arc ion plating technology, target material is titanium-copper-cerium alloy target, and copper content is successively in the target material of embodiment 6-10: 2%, 4%, 6%, 8%, 10% (mass percentage ); the cerium content is as follows: 0.05%, 0.06%, 0.07%, 0.08%, 0.09% (mass percentage).

[0024] The substrate is made of medical titanium alloy (grade TC4), the size of the sample is 15mm×15mm×5mm, and the size of the coated surface is 15mm×15mm. Before coating, the surface of the sample is ground, polished, ultrasonically cleaned and dried, and then placed on the sample stage of the vacuum chamber until the vacuum degree in the vacuum chamber reaches 8×10 -3 At Pa, heat the vacuum chamber to 500°C, feed argon gas into the vacuum chamber, set the gas flow rate to 90 sccm, control the air pressure at 0.8 Pa, apply pulse negative bias voltage -900V to the substrate, and perform glow cleaning on the sample for 10 minutes; Then, adjust the argon g...

Embodiment 11-15

[0027] Plating TiCuCe layer: using arc ion plating technology, the target material is a titanium-copper-cerium alloy target, among the target materials in Examples 11-15. The copper content is: 2%, 4%, 6%, 8%, 10% (mass percentage); the cerium content is: 0.05%, 0.06%, 0.07%, 0.08%, 0.09% (mass percentage).

[0028] The substrate is made of medical stainless steel (grade 316L), the size of the sample is 15mm×15mm×5mm, and the size of the coated surface is 15mm×15mm. Before coating, the surface of the sample is ground, polished, ultrasonically cleaned and dried, and then placed on the sample stage of the vacuum chamber until the vacuum degree in the vacuum chamber reaches 1×10 -2 At Pa, heat the vacuum chamber to 400°C, feed argon gas into the vacuum chamber, set the gas flow rate to 60 sccm, control the air pressure at 0.5 Pa, apply pulse negative bias voltage -600V to the substrate, and perform glow cleaning on the sample for 10 minutes; Then, adjust the argon gas flow rate ...

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Abstract

The invention aims to provide a titanium alloy nano-coating with an antibacterial function and a preparation method thereof. The titanium alloy nano-coating is characterized by comprising the following chemical components of, by mass percent, 2-10% of Cu, 0.04-0.1% of Ce and the balance Ti, wherein the preferable range of the chemical components reaches the following standards that the Cu accountsfor 4-8%, the Ce accounts for 0.06-0.08%, and the balance is the Ti. According to the preparation method of the titanium alloy nano-coating, a titanium-copper-cerium nano-coating with the antibacterial function is formed on the surface of a substrate, so that the substrate can obtain a coating with the broad spectrum and the antibacterial function; and the coating has the excellent corrosion resistance in a biological medium and a corrosive solution.

Description

technical field [0001] The invention belongs to the technical field of depositing medical nano-coatings on the surface of metal materials, and specifically provides a titanium alloy nano-coating with antibacterial function and a preparation method thereof. Background technique [0002] In the current medical field, the problem of bacterial infection caused by metal medical device implants has become more and more important. According to statistics, the annual incidence of orthopedic implant-related infections in the United States reaches about 4.3%. According to the relevant data in the "Practical Handbook of Nosocomial Infection Prevention and Control" promulgated by the World Health Organization (WHO), more than 14 million people in the world suffer from nosocomial infections every day, and 60% of bacterial infections are related to the medical devices used. Bacterial infections caused by medical devices can have disastrous consequences for patients once they occur. Pati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/32C23C14/14C22C14/00
CPCC22C14/00C23C14/14C23C14/325
Inventor 任玲彭聪杨柯赵彦辉
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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