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Method for modifying polyetheretherketone surface by implanting tantalum ions and modified polyetheretherketone material

A technology of polyether ether ketone and ion pair, which is applied in the field of polyether ether ketone materials, can solve problems such as poor biocompatibility, achieve strong stability and biological safety, improve biocompatibility, and osseointegration properties Improved effect

Active Publication Date: 2015-11-18
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 modifying polyetheretherketone surface by implanting tantalum ions and modified polyetheretherketone material
  • Method for modifying polyetheretherketone surface by implanting tantalum ions and modified polyetheretherketone material
  • Method for modifying polyetheretherketone surface by implanting tantalum ions and modified polyetheretherketone material

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Effect test

Embodiment 1

[0048] After the pure polyether ether ketone of 10mm×10mm×1mm has been polished, it is cleaned by ultrasonic cleaning with acetone and deionized water in sequence, each time for 30 minutes, after cleaning, it is dried in an oven at 80°C and stored properly. Plasma immersion ion implantation technology was used to implant tantalum ions into the polyetheretherketone matrix (Ta-1), and the modified polyetheretherketone material was properly preserved. The specific process parameters are shown in Table 1:

[0049] Table 1 Tantalum ion implantation parameters:

[0050] Injection voltage (kV)

[0051] figure 1 Ta-1 in the figure is the surface morphology diagram of the medical polyether ether ketone material obtained through the modification treatment in this example, which shows that the surface of the modified material has extremely small nanoparticles, the size of which is about several nanometers; figure 2 Ta-1 in the above is the XPS full-spectrum spectrum of the su...

Embodiment 2

[0053] After the pure polyether ether ketone of 10mm×10mm×1mm has been polished, it is cleaned by ultrasonic cleaning with acetone and deionized water in sequence, each time for 30 minutes, after cleaning, it is dried in an oven at 80°C and stored properly. Plasma immersion ion implantation technology was used to implant tantalum ions into the polyetheretherketone matrix (Ta-2), and the modified polyetheretherketone material was properly preserved. The specific process parameters are shown in Table 2:

[0054]Table 2 Tantalum ion implantation parameters:

[0055] Injection voltage (kV)

[0056] figure 1 Ta-2 in the figure is the surface morphology diagram of the medical polyether ether ketone material obtained through the modification treatment of this example. The figure shows that the modified material has nanoparticles on the surface, and the size is larger than Ta-1, about 10 nanometers ; figure 2 Ta-2 in this example is the XPS full-spectrum spectrum of the s...

Embodiment 3

[0058] After the pure polyetheretherketone of 10mm×10mm×1mm is polished, it is ultrasonically cleaned with acetone and deionized water in sequence, each time for 30 minutes, after cleaning, it is dried in an oven at 80°C and stored properly. Plasma immersion ion implantation technology was used to implant tantalum ions into the polyether ether ketone matrix (Ta-3), and the modified polyether ether ketone material was properly preserved after implantation. The specific process parameters are shown in Table 3:

[0059] Table 3 Tantalum ion implantation parameters:

[0060] Injection voltage (kV)

[0061] figure 1 Ta-3 in the figure is the surface morphology diagram of the medical polyether ether ketone material obtained through the modification treatment in this example. The figure shows that the modified material has nanoparticles on the surface, and the size is larger than that of Ta-1 and Ta-2. About 10-20 nanometers; figure 2 Ta-3 in this example is the XPS full...

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Abstract

The invention relates to a method for modifying the surface of polyetheretherketone by injecting tantalum ions and a modified polyetheretherketone material. According to the method, the tantalum element containing modified layer is obtained by injecting the tantalum ions to the surface of the polyetheretherketone by adopting a plasma immersion ion injection technology, the polyetheretherketone approaches the cortical bone of a human body by enhancing the elastic modulus and rigidity of the surface of the polyetheretherketone and the biocompatibility and osseointegration property of the surface of the polyetheretherketone are improved. The polyetheretherketone material obtained through the treatment of the modifying method is enhanced in biocompatibility and mechanical property at different degrees. Besides, a bMSC (Bone Marrow Stromal Cells) cell has an obvious osteogenic differentiation trend on the surface of the polyetheretherketone material obtained through the treatment of the modifying method.

Description

technical field [0001] The present invention relates to a method for modifying the surface of polyetheretherketone and the modified polyetheretherketone material, in particular to a method for modifying the surface of polyetheretherketone material by using plasma immersion ion implantation and deposition technology The modification method and the modified polyether ether ketone material injected with tantalum ions belong 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 of biomaterial preparation and use, high-performance polymer implant materials are expected to gradually replace titanium and its alloy materials, and the application prospects will be broader. The elastic modulus of polyetheretherketone (PEEK) matches that of human bone tissue. After implantation into the human body, it can effectively reduce bone resorption a...

Claims

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Application Information

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