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4D printed polyetheretherketone/niobate compound material and preparation method thereof

A technology of polyether ether ketone and composite materials, which is applied in coatings, medical science, prostheses, etc., and can solve problems such as lumps, high thermal deformation temperature under glass transition temperature load, and no biological activity.

Inactive Publication Date: 2019-09-17
慧迈材料科技(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyetheretherketone (PEEK) belongs to a kind of special properties such as high glass transition temperature and melting point, high thermal deformation temperature under load, high strength, high modulus, high fracture toughness, water resistance and excellent dimensional stability. As a biological material, it can meet the mechanical performance requirements of bone replacement materials such as strength and elastic modulus, but PEEK is an inert and non-hydrophilic material, and as a biological implant, it has no biological activity in the in vivo environment, and it is easy to cause cell fibrosis , which further leads to lumps and even inflammation at the PEEK implant site

Method used

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  • 4D printed polyetheretherketone/niobate compound material and preparation method thereof
  • 4D printed polyetheretherketone/niobate compound material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Dry polyether ether ketone and sodium potassium lithium niobate powder at 120°C for 12 hours respectively, and obtain fibrous polyetheretherketone / sodium potassium lithium niobate composite material by melt coextrusion method, wherein the melt coextrusion chamber temperature is 150°C , the nozzle temperature was 360°C, and the surface of the obtained polyetheretherketone / sodium potassium lithium niobate composite fiber material was coated with PLA / PEG to obtain a PEEK composite material, and the PEEK was formed into the required scaffold structure by 3D printing technology, with a concentration of 95 % of absolute ethanol was washed three times and then washed three times with acetone solution. After ultraviolet sterilization, the body osteoblasts were cultured. Compared with untreated polyether ether ketone fibers under the action of external force, polyether The proliferation and differentiation of cells on the fiber surface of the etherketone composite material is sig...

Embodiment 2

[0023] The polyetheretherketone rod was dried at 125°C for 12h, rinsed three times with 95% absolute ethanol and then washed three times with acetone solution and dried naturally, and deposited on polyetheretherketone by ion beam sputtering deposition (IBAD). The surface of the bar is coated with sodium potassium niobate to obtain polyether ether ketone / sodium potassium lithium niobate composite material, and the surface is coated with PLA, washed three times with 95% absolute ethanol and then washed three times with acetone solution to obtain ether The ether ketone composite material is treated with high temperature and high pressure to make its structure more compact. After ultraviolet sterilization treatment, bone cells are cultured in vitro. The proliferation and differentiation of cells on the surface of the ketone composite rod is significantly improved, the cell adhesion is better, and the biocompatibility is better.

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Abstract

The invention discloses a 4D printed polyetheretherketone / niobate compound material and a preparation method thereof. The 4D printed polyetheretherketone / niobate compound material is mainly used for wound and skeleton repair in the biological medical field, such as skull repair, vertebral body replacement, and biological stents. Polyetheretherketone powder and niobate powder can be mixed together to be prepared into PEEK / niobate compound materials or to be used for coating niobate materials onto the surface of polyetheretherketone (fibers, sheets and stick materials), PEEK based compound materials are obtained through coating the surface of the PEEK / niobate compound material with biological degradable polymer materials, and through a 3D printing technique, a biological implant shape structure is shaped. The polyetheretherketone compound material has the characteristics of promoting generation of calcium and phosphorus salt on the surface of an implant, promoting proliferation and differentiation of osteocyte, promoting cell adhesion, being non-toxic, good in biocompatibility, simple in preparation method and the like.

Description

technical field [0001] The invention relates to a 4D printing polyether ether ketone / niobate composite material and a preparation method thereof, belonging to the field of biomedical materials Background technique [0002] Polyetheretherketone (PEEK) belongs to a kind of special properties such as high glass transition temperature and melting point, high thermal deformation temperature under load, high strength, high modulus, high fracture toughness, water resistance and excellent dimensional stability. As a biological material, it can meet the mechanical performance requirements of bone replacement materials such as strength and elastic modulus, but PEEK is an inert and non-hydrophilic material, and as a biological implant, it has no biological activity in the in vivo environment, and it is easy to cause cell fibrosis , which further leads to lumps and even inflammation at the PEEK implant site. [0003] Niobate is a piezoelectric ceramic material with a perovskite structu...

Claims

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Application Information

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IPC IPC(8): A61L27/18A61L27/02A61L27/30A61L27/34A61L27/50
CPCA61L27/025A61L27/18A61L27/306A61L27/34A61L27/50A61L2420/06A61L2430/02C08L61/16C08L67/04
Inventor 闵永刚刘荣涛刘屹东
Owner 慧迈材料科技(广东)有限公司
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