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Composite polyether-ether-ketone material as well as preparation method and application thereof

A technology for compounding polyether and polyether ether ketone, which is applied in the fields of medical science and prosthesis, and can solve problems affecting the mechanical properties of polyether ether ketone materials, poor compatibility, and harsh reaction conditions

Active Publication Date: 2021-11-02
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the bioinertness of PEEK hinders osseointegration after implantation, which greatly limits its clinical application.
Due to the poor compatibility between polyether ether ketone and commonly used bioactive materials and the low bonding strength, the traditional modification technology of polyether ether ketone needs to use 98% concentrated sulfuric acid or carry out under high temperature (above 360°C), The reaction conditions are relatively harsh, and the addition of modified materials will also affect the mechanical properties of polyether ether ketone materials to a certain extent

Method used

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  • Composite polyether-ether-ketone material as well as preparation method and application thereof
  • Composite polyether-ether-ketone material as well as preparation method and application thereof
  • Composite polyether-ether-ketone material as well as preparation method and application thereof

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preparation example Construction

[0048] The preparation method of the composite polyetheretherketone material mentioned above comprises making the polyetheretherketone material into a two-dimensional braid, dipping it in a polylactic acid solution to remove the solvent, and then preparing the composite polyetheretherketone material by hot pressing. The preparation method of the above composite polyetheretherketone material is simple in process and easy to process. The polylactic acid and polyetheretherketone in the prepared composite polyetheretherketone material form a mechanical interlocking structure, which has obvious weaving texture, and the components are firmly combined. The obtained composite polyether ether ketone material has both the high toughness and chemical resistance of polyetheretherketone and the biocompatibility and degradability of polylactic acid, and has good compatibility between components, and is especially suitable for the preparation of medical implants. thing.

[0049] Another embo...

Embodiment 1

[0059] The preparation method of the composite polyether ether ketone material of the present embodiment is as follows:

[0060] (1) Mix 5 g of polylactic acid particles with 100 ml of chloroform, and stir magnetically for 3 hours to completely dissolve the polylactic acid particles in the chloroform solvent.

[0061] (2) Dip 2 grams of polyetheretherketone two-dimensional braid into the completely dissolved polylactic acid solution, and keep it under vacuum for 12 hours.

[0062] (3) Put the polyether ether ketone two-dimensional braid filled with polylactic acid in a copper mold, heat it to a set temperature of 145° C., and keep it under a pressure of 10 MPa for 30 minutes.

Embodiment 2

[0064] The preparation method of the composite polyether ether ketone material of the present embodiment is as follows:

[0065] (1) Mix 5 g of polylactic acid particles with 100 ml of chloroform, and stir magnetically for 3 hours to completely dissolve the polylactic acid particles in the chloroform solvent.

[0066] (2) Dip 2 grams of polyetheretherketone two-dimensional braid into the completely dissolved polylactic acid solution, and keep it under vacuum for 12 hours.

[0067] (3) Put the polyether ether ketone two-dimensional braid filled with polylactic acid into a copper mold, heat it to a set temperature of 155° C., and keep it under a pressure of 10 MPa for 30 minutes.

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Abstract

The invention relates to a composite polyether-ether-ketone material as well as a preparation method and an application thereof. The preparation method of the composite polyether-ether-ketone material comprises the following steps: preparing a polyether-ether-ketone two-dimensional braided fabric; dipping the polyether-ether-ketone two-dimensional braided fabric in a polylactic acid solution, and removing the solvent to obtain the polyether-ether-ketone two-dimensional braided fabric filled with polylactic acid; and carrying out hot press molding on the polyetheretherketone two-dimensional braided fabric filled with the polylactic acid. The preparation method of the composite polyether-ether-ketone material is simple in process and easy to process, polylactic acid and polyether-ether-ketone in the prepared composite polyether-ether-ketone material form a mechanical interlocking structure, the composite polyether-ether-ketone material has obvious weaving lines, components are firmly combined, and the prepared composite polyether-ether-ketone material has the high toughness and chemical resistance of polyether-ether-ketone and the biocompatibility and degradability of polylactic acid, the compatibility among the components is good, and the composite polyether-ether-ketone material is especially suitable for preparing medical implants.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a composite polyetheretherketone material and its preparation method and application. Background technique [0002] The reason why bone is an ideal biological scaffold is that it has both hardness and elasticity. Observed under an electron microscope, bones have a very delicate structure: bundles of organic collagen matrix are "embedded" with layers of inorganic hydroxyapatite (HAP) crystals. Both hardness and bending resistance. The HAP crystals in bone are the thinnest known biological materials, only about 1.5 to 2 nanometers thick. [0003] The commonly used bone repair materials in clinical practice include autogenous bone and metal prosthesis. Autogenous bone greatly increases the trauma and pain of patients; while metal prosthesis has problems such as loosening and fracture. Therefore, research on new biomaterials for bone grafting has become a medical focus....

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L61/16C08L5/08A61L27/48A61L27/50
CPCC08L67/04A61L27/48A61L27/50C08L2205/16C08L61/16C08L5/08
Inventor 唐斌马静梁新宇王岩松
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA