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Ti-Cu-N nanometer composite anti-microbial coating and preparation method thereof

A nano-composite, antibacterial coating technology, applied in coating, metal material coating process, ion implantation plating and other directions, can solve problems such as poor antibacterial properties, implant failure, infection, etc., to achieve coating toughness, wear resistance, coating The effect of good layer toughness and good antibacterial properties

Inactive Publication Date: 2018-05-25
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

However, if the implant material has poor mechanical properties, it will cause degeneration of the properties of the implant material, leading to implant failure; if the implant material has poor antibacterial properties, it will cause postoperative infection and lead to surgical failure
[0003] At the end of the 20th century, the concept of nanocomposite coating was proposed, that is, a composite structure of two or more phases formed by nanocrystal-nanocrystal or nanocrystal-amorphous. This composite coating has been developed and applied to a certain extent, and has good Excellent hardness and wear resistance, but most of them are used in the field of knives and molds, but rarely used in the field of antibacterial

Method used

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  • Ti-Cu-N nanometer composite anti-microbial coating and preparation method thereof
  • Ti-Cu-N nanometer composite anti-microbial coating and preparation method thereof
  • Ti-Cu-N nanometer composite anti-microbial coating and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] Plating transition layer: the substrate is made of stainless steel (grade 316L), the size of the sample is 20mm×10mm×10mm, and the size of the coating surface is 20mm×10mm. The surface before coating 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 4×10 -3 At Pa, heat the vacuum chamber to 300°C, feed argon gas into the vacuum chamber, set the gas flow rate to 100 sccm, control the air pressure at 2.0 Pa, apply pulse negative bias voltage -700V to the substrate, and perform glow cleaning on the sample for 10 minutes; Then, adjust the flow rate of argon gas to adjust the pressure of the vacuum chamber to 0.5Pa. At the same time, turn on the pure titanium target arc source, and the arc flow is stable at 70A. Ti + Bombard for 5 minutes; adjust pulse negative bias to -300V, deposit Ti film for 3 minutes, the thickness of the transition layer formed by Ti fil...

Embodiment 2

[0029] The substrate is made of titanium alloy (grade Ti6Al4V), the size of the sample is 20mm×10mm×10mm, and the size of the coated surface is 20mm×10mm. The surface before coating 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 4×10 -3 At Pa, turn on the gas mass flow controller, pass argon to 1.0Pa, apply a pulsed negative bias to -600V on the substrate, and perform glow cleaning on the sample for 15 minutes; then, adjust the flow of argon to adjust the pressure of the vacuum chamber to 0.6Pa, turn on the titanium target arc source at the same time, the arc current is stable at 80A, and perform Ti on the sample + Ion bombardment for 5 minutes; adjust the pulse negative bias to -200V, deposit the Ti metal layer for 3 minutes, and the thickness of the transition layer formed by the Ti film is 0.2 microns; then, use a pure titanium target, stop the argon and f...

Embodiment 3

[0032] The substrate is made of stainless steel (grade 1Cr18Ni9Ti), the size of the sample is 20mm×10mm×10mm, and the size of the coated surface is 20mm×10mm. The surface before coating 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 3×10 -3 At Pa, pass argon gas to 1.0Pa, apply pulse negative bias to -700V on the substrate, and perform glow cleaning on the sample for 5 minutes; then, adjust the Ar gas flow rate to adjust the vacuum chamber pressure to 0.3Pa, and turn on the titanium target arc at the same time source, the arc current was stabilized at 80A, and the samples were subjected to Ti +Ion bombardment for 4 minutes, the thickness of the transition layer formed by the Ti film is 0.2 microns; then, using a pure titanium target, stop the argon gas and feed nitrogen gas, adjust the air pressure to 1.0Pa; adjust the substrate pulse negative bias to -300V, ...

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Abstract

The invention belongs to the technical field of metal material surface deposition nanometer composite anti-microbial coatings and particularly relates to a titanium nitride copper (called Ti-Cu-N in the following) nanometer composite anti-microbial coating and a preparation method thereof. A transition layer formed by a Ti film, a middle layer formed by a TiN film and a Ti-Cu-N layer are sequentially arranged on the surface of a base body, and the thickness of the Ti-Cu-N nanometer composite anti-microbial coating ranges from 1 micrometer to 10 micrometers. According to the coating, the magnetic field enhancement arc ion plating technology is adopted for completion, and the nanometer composite anti-microbial coating prepared through the method has good anti-microbial performance and also has the beneficial effects of being high in hardness, good in coating toughness, resistant to abrasion and the like.

Description

Technical field: [0001] The invention belongs to the technical field of nanocomposite antibacterial coating deposited on the surface of metal materials, in particular to a titanium copper nitride (hereinafter referred to as Ti-Cu-N) nanocomposite antibacterial coating and a preparation method thereof. Background technique: [0002] Metal materials have been used in the human body as medical biomaterials for hundreds of years and play an important role in clinical medicine. With the continuous development of medical biomaterials, more and more medical biomaterials have been used to manufacture artificial organs and devices. These artificial organs and devices have successfully alleviated the suffering of patients and extended their lives. Coating the surface of metal materials can obtain good biomedical functions without affecting the performance of implant materials. However, if the implant material has poor mechanical properties, it will cause degeneration of the propertie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/32C23C14/16C23C14/06C23C14/02
CPCC23C14/0021C23C14/025C23C14/0641C23C14/16C23C14/325
Inventor 赵彦辉任玲徐丽刘占奇杨柯彭冲刘蕊于宝海
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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