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Surface-fluorinated polyether-ether-ketone material and preparation method thereof

A polyetheretherketone and surface fluorination technology, which is applied in the field of surface modification of medical polymer materials, can solve the problems of inability to introduce fluorine elements and the like

Active Publication Date: 2015-02-25
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

[0006] The present invention aims to overcome the defect that fluorine cannot be introduced into the surface of polyether ether ketone in the existing technical solutions, and the present invention provides a surface fluorinated polyether ether ketone material and its preparation method

Method used

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  • Surface-fluorinated polyether-ether-ketone material and preparation method thereof
  • Surface-fluorinated polyether-ether-ketone material and preparation method thereof
  • Surface-fluorinated polyether-ether-ketone material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0049] 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. Firstly, plasma immersion ion implantation is performed on the polyetheretherketone substrate with argon gas as the ion source, and its specific process parameters are shown in Table 1 in Comparative Example 1; After soaking in 40% hydrofluoric acid aqueous solution for 24 hours, ultrasonically clean with deionized water for 3 times, 20 minutes each time. Dry the cleaned polyether ether ketone material (AF-PEEK) naturally and store it properly; figure 1 (AF-PEEK) is the surface morphology diagram of the medical polyether ether ketone material obtained through the modification treatment of this example, and the figure shows that the modified material surface retains a structure similar to that of A-PEEK; Figure 4 (AF-PEEK) is the contact ...

Embodiment 2

[0051] X-ray photoelectron spectroscopy (XPS) was used to evaluate the chemical state of the surface of the polyetheretherketone material obtained through the modification of Comparative Examples 1 and 2 and Example 1 above. The instrument used is the PHI 5000C ESCA System of the American PHI Company (upgraded by the American RBD Company); the ray source is the Mg target Kα system (1253.6eV), the high voltage is 14.0kV, the power is 250W, and the vacuum is better than 1×10 -8 Torr. The RBD147 data acquisition card and AugerScan software from RBD Company in the United States are used to collect the full scan spectrum of the sample at 0-1200eV and the narrow scan spectrum (high resolution spectrum) of the 1s orbital of carbon (C) and oxygen (O) elements;

[0052] figure 2 It is the X-ray photoelectron spectroscopy (XPS) test result of the surface of the polyetheretherketone material before and after the modification treatment of the present invention and the surface of the po...

Embodiment 3

[0054]The electrical state near the surface of the polyether ether ketone material obtained through the modification treatment of the above Comparative Examples 1 and 2 and Example 1 was evaluated by using the Zeta potential test on the surface of the material. The specific method is as follows: an electrokinetic analyzer (Anton Paar, Austria) is used to measure the Zeta potential of the diffusion layer near the surface of the material as a function of the pH value of the electrolyte. Take two samples of 20mm×10mm×1mm for each group of materials to be tested, and install them face-to-face and parallel on the sample holder, leaving a certain gap between the two samples. The electrolytic solution used is 0.001M potassium chloride solution, and the pH value of the electrolytic solution is adjusted with hydrochloric acid and sodium hydroxide aqueous solution. At each different pH value point, the instrument will measure the electrokinetic current, pressure, electrolyte constant an...

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Abstract

The invention relates to a surface-fluorinated polyether-ether-ketone material and a preparation method thereof. The surface of the polyether-ether-ketone material has a gully nanostructure and contains fluorine element, and the content of the fluorine element in surface atoms of the polyether-ether-ketone material is 3.06-9.01%.

Description

technical field [0001] The invention relates to a surface fluorinated polyether ether ketone material and a preparation method thereof, belonging to the technical field of surface modification of medical polymer materials. Background technique [0002] With the improvement of people's requirements for life health and quality of life, human implants have become good substitutes for damaged or missing bone tissue, and have great application potential in the field of biomedicine. However, long-term clinical follow-up and research have found that there are three main reasons for the failure of existing implants: one is that the mechanical properties of the material do not match the hard tissue of the human body and the wear resistance is poor, resulting in loosening of the implant after long-term wear; The biological activity of the implant surface is not ideal, the bone regeneration ability is poor, and it cannot be combined with the surrounding tissue within a certain period o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08L61/16
Inventor 刘宣勇王贺莹孟凡浩
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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