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PEEK (polyether-ether-ketone) surface modification method

A surface modification, polyether ether ketone technology, applied in the direction of coating, etc., can solve the problems of not being able to induce bone-like hydroxyapatite well, limiting the application range of implant materials, and not easy to bond bone tissue. Achieve the effect of improving biological performance, improving biocompatibility, and excellent comprehensive performance

Active Publication Date: 2018-09-07
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

However, the biological activity of PEEK is poor, and the implant cannot induce the formation of bone-like hydroxyapatite well, and it is not easy to bond with bone tissue, which limits its application range as an implant material.
[0003] Since PEEK is chemically inert (Acta Biomaterialia 9(2013) 6177–6187), it is basically not corroded except concentrated sulfuric acid, so there are relatively few studies on the structural modification of PEEK surface.

Method used

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  • PEEK (polyether-ether-ketone) surface modification method
  • PEEK (polyether-ether-ketone) surface modification method
  • PEEK (polyether-ether-ketone) surface modification method

Examples

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Embodiment 1

[0043] The medical PEEK material is polished and washed with ethanol, acetone, and deionized water three times in sequence; b) Put the magneton in concentrated sulfuric acid, stir in a magnetic stirrer at 300r / min, and put PEEK in it to react 5min, put the sulfonated PEEK in deionized water, soak for 5min, take it out and let it dry naturally; c) Put the sulfonated PEEK in deionized water in a hydrothermal kettle at 120℃ for 4h and take it out Rinse the sample and dry it naturally; d) Put the hydrothermally treated sulfonated PEEK in 12g / L sodium borohydride dimethyl sulfoxide at 120°C in a hydrothermal kettle for 0.5h-48h and then take out the sample Rinse and dry naturally.

[0044] figure 1 It is the scanning electron micrograph of the surface of the reduced PEEK treated with different hydrothermal time in the first implementation example. (a) PEEK; (b) PEEK hydrothermal reduction treatment for 0.5 hours; (c) PEEK hydrothermal reduction treatment for 2 hours; (d) PEEK hydroth...

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Abstract

The invention provides a PEEK (polyether-ether-ketone) surface modification method. The method comprises steps as follows: PEEK is sulfonated with concentrated sulfuric acid, and sulfonated PEEK is obtained; sulfonated PEEK is subjected to reduction treatment with sodium borohydride at the temperature of 80-160 DEG C for 0.5 h or longer.

Description

Technical field [0001] The invention relates to a method for modifying the surface of PEEK. Specifically, it relates to a PEEK surface modification layer with different structures with hydroxyl functional groups obtained after reduction treatment with sodium borohydride, belonging to biological The technical field of surface modification of medical polymer materials. Background technique [0002] Polyetheretherketone (PEEK) is a semi-crystalline polymer with a crystallinity of 30-35% and a glass transition temperature of 143°C. As a new type of organic polymer compound, PEEK has the advantages of radiation semi-transmission and elastic modulus between bone cancellous and bone compact. It has a wide range of applications in the fields of injury, spine, joints and plastic surgery (Biomaterials28 (2007) 4845–4869). However, the biological activity of polyether ether ketone is poor, the implant can not well induce the formation of bone-like hydroxyapatite, and it is difficult to bo...

Claims

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Application Information

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IPC IPC(8): C08J7/12C08J7/14C08J7/04C08G8/28C08L61/16
CPCC08G8/28C08J7/04C08J7/12C08J7/14C08J2361/16
Inventor 刘宣勇孙振杰欧阳丽萍马小涵
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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