Check patentability & draft patents in minutes with Patsnap Eureka AI!

Polyaryletherketone modifier as well as preparation method and application thereof

A technology of polyaryletherketone and modified products, which is applied in the field of polyaryletherketone modified products and their preparation, can solve problems such as insufficient interface osseointegration, achieve the elimination of stress shielding effect, simple preparation method, and accelerate early osseointegration Effect

Active Publication Date: 2021-07-09
GUANGDONG INST OF NEW MATERIALS
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the objectives of the present invention includes providing a polyaryletherketone modified product, which is beneficial to alleviate or overcome the problem of excessive fibrous tissue between the implant and the host bone after the polyaryletherketone substances are implanted into the living body. Problems leading to insufficient interface osseointegration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyaryletherketone modifier as well as preparation method and application thereof
  • Polyaryletherketone modifier as well as preparation method and application thereof
  • Polyaryletherketone modifier as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0077] Correspondingly, the present application provides a method for preparing the modified polyaryletherketone, which may include the following steps: preparing a composite coating on the surface of the polyaryletherketone material.

[0078] It is worth noting that the inventors found that although the above-mentioned composite coating can be prepared by using magnetron sputtering technology, micro-arc oxidation technology, sol-gel technology, etc., the equipment required for the above-mentioned technology is complicated, the preparation process is cumbersome, and the price is relatively high. High, and it is difficult to obtain a microstructure coating with high porosity and ultra-high roughness. The plasma spraying process is simple, economical, and can achieve greater overall output. It is the fastest and easiest process to achieve a large pore network and rough surface of the implant. Therefore, in terms of cost / benefit, plasma spraying technology is the most effective p...

Embodiment 1

[0096] Use PEEK as the substrate, use 60#SiC to polish the surface, and then use Al 2 o 3 Sandblasting is carried out until the surface roughness is Ra=10-15μm, and then ultrasonic cleaning is carried out with alcohol. The particle size of 200g is d 50 = 32μm and d 50 The sponge titanium powder of about 110 μm is loaded into the powder feeder respectively.

[0097] Put the PEEK matrix into the vacuum chamber and close the vacuum plasma equipment hatch, pump the vacuum to the pressure 40mbar, after pointing the gun, pump the vacuum to the pressure <2mbar, and then pass the plasma jet to the The polyaryletherketone material is preheated.

[0098] Adjust the vacuum plasma spraying parameters to prepare the first titanium coating-priming layer: the spraying pressure is 14KPa; the spray gun power is 30kW, the current is 550A; the working gas Ar flow rate is 45splm, H 2 Air flow is 4slpm. After the flame flow is stable, the particle size is d at a powder feeding rate of 10g / mi...

Embodiment 2

[0102] The difference between this embodiment and embodiment 1 is:

[0103] Adjust the vacuum plasma spraying parameters to prepare the primer titanium coating: the spraying pressure is 10KPa; the spray gun power is 25kW, the current is 580A; the working gas Ar flow rate is 40splm, H 2 The air flow is 2slpm. After the flame flow is stable, the particle size is d at a powder feeding rate of 12g / min. 50 =32μm Ti powder is fed into the plasma flame. The spraying distance is 250mm; the plasma gun moves horizontally at a speed of 1000mm / s, and sprays 6 times.

[0104] Adjust the vacuum plasma spraying parameters to prepare rough porous titanium coating: the spraying pressure is 10KPa, the spray gun power is 25kw, the current is 520A; the working gas Ar flow rate is 40splm, H 2 The air flow is 2slpm. After the flame flow is stable, the particle size is d at a powder feeding rate of 15g / min. 50 = 110μm Ti powder is sent into the plasma flame, the spraying distance is 250mm; the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Granularityaaaaaaaaaa
Surface roughnessaaaaaaaaaa
Surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a polyaryletherketone modifier as well as a preparation method and application thereof, and belongs to the technical field of materials. The modifier comprises a polyaryletherketone material as a matrix, and a first titanium coating, a second titanium coating and a hydroxyapatite coating which are sequentially arranged on the surface of the matrix. The porosity of the second titanium coating is higher than that of the first titanium coating. The first titanium coating in the polyaryletherketone modifier has better bonding strength with the matrix, so that the mechanical integrity, stability and durability of the polyaryletherketone implant system can be guaranteed. The second titanium coating imitates a rough porous structure of a human bone structure characteristic and can quickly increase the bone ingrowth speed and region, and the hydroxyapatite coating imitating human bone chemical parts on the surface layer can form chemical combination with bone tissue to promote natural bone tissue growth. The composite coating can synergistically stabilize and enhance the osseointegration of the polyaryletherketone implant. The corresponding preparation method is simple and easy to operate, conditions are controllable, and the polyaryletherketone modifier capable of stably and permanently enhancing osseointegration of the implant can be obtained.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a modified polyaryletherketone and its preparation method and application. Background technique [0002] As a thermoplastic polymer, polyetheretherketone (PEEK) has an elastic modulus (3-4GPa) comparable to that of human cortical bone, which can weaken or eliminate the stress shielding effect of traditional metal-based implants to a certain extent. In addition, the inert chemical structure and high heat resistance of PEEK make it suitable for various sterilization techniques, and the radiolucency of PEEK makes it easy to monitor bone growth and bone healing. PEEK materials can be used in the fields of injury, spine, joint and orthopedics. [0003] However, PEEK is a biologically inert material. After being implanted in the body, too much fibrous tissue is formed between the implant and the host bone, resulting in insufficient interface osseointegration, which limits the applic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61L27/32A61L27/18A61L27/30A61L27/56C23C4/04C23C4/08C23C4/134C23C4/137
CPCA61L27/32A61L27/306A61L27/18A61L27/56C23C4/134C23C4/137C23C4/08C23C4/04A61L2430/02A61L2420/08A61L2420/02C08L61/16
Inventor 范秀娟邓春明邓畅光刘敏胡峰帆
Owner GUANGDONG INST OF NEW MATERIALS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com