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Method for injecting titanium ions to modify surface of polyether-ether-ketone

A technology of polyether ether ketone and titanium ions, which is applied in the field of surface modification of medical polymer materials, can solve problems such as poor biocompatibility, and achieve good cell compatibility and improved biocompatibility

Active Publication Date: 2013-08-14
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of poor biocompatibility of the existing medical polyether ether ketone, the present invention provides a novel surface modification method of medical polyether ether ketone materials, so as to meet the requirements of medical polyether ether ketone materials. biocompatibility requirements

Method used

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  • Method for injecting titanium ions to modify surface of polyether-ether-ketone
  • Method for injecting titanium ions to modify surface of polyether-ether-ketone
  • Method for injecting titanium ions to modify surface of polyether-ether-ketone

Examples

Experimental program
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Effect test

Embodiment 1

[0041] 10mm×10mm×1mm carbon fiber-reinforced polyetheretherketone is polished, then ultrasonically cleaned with acetone and deionized water in sequence, 30min each time, dried in an oven at 80°C after cleaning, and stored properly. Using plasma immersion ion implantation technology, titanium ions were implanted into carbon fiber reinforced polyether ether ketone matrix. The specific process parameters are shown in Table 1, and the obtained sample number is Ti-120.

[0042] Injection bias (kV) 30 Pulse width (μs) 450 Injection time (min) 120 Background vacuum (Pa) 3.5×10 -3 Cathode trigger pulse width (μs) 500 Frequency (Hz) 7

[0043] figure 1 It is the scanning electron microscope morphology of the surface of carbon fiber reinforced polyether ether ketone and unmodified carbon fiber reinforced polyether ether ketone obtained through the modification treatment in Example 1. In the figure: (a) and (b) are unmodified carbon fiber reinforced p...

Embodiment 2

[0046] After polishing, the 10mm×10mm×1mm carbon fiber reinforced polyetheretherketone is ultrasonically cleaned with acetone and deionized water, each time for 30min, after cleaning, it is dried in an oven at 80°C and stored properly. Using plasma immersion ion implantation technology, titanium ions were implanted into the carbon fiber reinforced polyether ether ketone matrix. The specific process parameters are shown in Table 2:

[0047] Injection bias (kV) 30 Pulse width (μs) 450 Injection time (min) 120 Background vacuum (Pa) 3.5×10 -3 Cathode trigger pulse width (μs) 500 Frequency (Hz) 5

Embodiment 3

[0049] After polishing, the 10mm×10mm×1mm carbon fiber reinforced polyether ether ketone was cleaned ultrasonically with acetone and deionized water, each time for 30 minutes, and then dried in an oven at 80°C and stored properly. Using plasma immersion ion implantation technology, titanium ions were implanted into the carbon fiber reinforced polyether ether ketone matrix. The specific process parameters are shown in Table 3:

[0050] Injection bias (kV) 30 Pulse width (μs) 450 Injection time (min) 120 Background vacuum (Pa) 3.5×10 -3 Cathode trigger pulse width (μs) 500 Frequency (Hz) 9

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Abstract

The invention relates to a method for injecting titanium ions to modify the surface of polyether-ether-ketone. The method injects titanium ions on the surface of polyether-ether-ketone by using a plasma immersion ion implantation technology. Different nano structures can be obtained on the surface of the polyether-ether-ketone material obtained by the modified treatment, so that the biocompatibility is remarkably improved. The material further has the potential prospect of loading bone induction growth factors and antibacterial agents.

Description

technical field [0001] The present invention relates to a method for modifying the surface of medical polyether ether ketone, in particular to a method for modifying the surface of polyether ether ketone and its derived composite materials by using plasma immersion ion implantation technology, belonging to The technical field of surface modification of medical polymer materials. Background technique [0002] In recent years, with the continuous improvement and development of the theory and technology for the preparation and use of biological materials, the application prospects of polymer implant materials will be broader. The elastic modulus of polyetheretherketone (PEEK) best matches that of human bone tissue, which can effectively reduce bone resorption and bone atrophy caused by the stress shielding effect, and has outstanding fatigue resistance, making it suitable for long-term implantation of medical implants (Biomaterials 2007, 28:4845-4869). However, the biological...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C23C14/48C23C14/20
Inventor 刘宣勇陆涛
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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