Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of mesoporous carbon reinforced iron-based composite material and its preparation method and application

An iron-based composite material and mesoporous carbon technology, applied in the direction of prosthesis, medical science, etc., can solve the problems of slow degradation of bone implants, insufficient osteogenic ability, limited biological activity, etc., to promote biomineralization, increase Quantity, the effect of increasing the corrosion current density

Active Publication Date: 2021-11-26
JIANGXI UNIV OF SCI & TECH +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of slow degradation, limited biological activity and insufficient osteogenesis ability of iron-based alloys used as bone implants in the prior art, the purpose of the present invention is to provide a bone implant with suitable degradation speed and biomineralization capacity A kind of mesoporous carbon reinforced iron-based composite material and its preparation method and application

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
  • A kind of mesoporous carbon reinforced iron-based composite material and its preparation method and application
  • A kind of mesoporous carbon reinforced iron-based composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh 1g of mesoporous carbon powder, its electrical conductivity is: 0.3S / cm, the average particle size is 3μm, and 99g of pure iron powder with an average particle size of 35μm are wetted in a ball mill under the action of a protective (nitrogen) atmosphere. Ball milling method, using dry alcohol as the ball milling medium at a speed of 350r / min for 4 hours to obtain a uniformly dispersed iron / mesoporous carbon mixed powder. Iron / mesoporous carbon implants were obtained after melting, cooling and solidification under the conditions of high-purity argon protection, laser power 100W, scanning speed 150mm / s, and powder coating thickness 60μm.

[0042] Microstructure observation revealed that mesoporous carbon was uniformly dispersed in the iron matrix, and mechanical tests showed that the ultimate compressive strength was 230Mpa.

[0043] After soaking in simulated body fluid for 30 days, the calculated degradation rate is 0.21 mm / year, and the surface is covered with a ...

Embodiment 2

[0045] Weigh 0.5g of mesoporous carbon powder, its conductivity is: 0.3S / cm, the average particle size is 3μm and 99.5g of pure iron powder with an average particle size of 35μm, in a ball mill under the action of a protective (argon) atmosphere Wet ball milling was carried out, and dry alcohol was used as the ball milling medium at a speed of 350 r / min for 4 hours to obtain a uniformly dispersed iron / mesoporous carbon mixed powder. Iron / mesoporous carbon implants were obtained after melting, cooling and solidification under the conditions of high-purity argon protection, laser power 100W, scanning speed 150mm / s, and powder coating thickness 60μm.

[0046]Microstructure observation revealed that mesoporous carbon was uniformly dispersed in the iron matrix, and mechanical tests showed that the ultimate compressive strength was 210Mpa.

[0047] After soaking in simulated body fluid for 30 days, the calculated degradation rate is 0.17mm / year, and the surface is covered with a lar...

Embodiment 3

[0049] Weigh 2g of mesoporous carbon powder, its conductivity is: 0.3S / cm, the average particle size is 3μm and 95g of pure iron powder with an average particle size of 35μm, and it is carried out in a ball mill under the action of a protective (argon) atmosphere. Wet ball milling, using dry alcohol as the ball milling medium at a speed of 350r / min for 4 hours to obtain a uniformly dispersed iron / mesoporous carbon mixed powder. Iron / mesoporous carbon implants were obtained after melting, cooling and solidification under the conditions of high-purity argon protection, laser power 100W, scanning speed 150mm / s, and powder coating thickness 60μm.

[0050] Observation of the microstructure reveals that mesoporous carbon is uniformly dispersed in the iron matrix, and the mechanical test shows that the ultimate compressive strength is 204Mpa.

[0051] After soaking in simulated body fluid for 30 days, the calculated degradation rate is 0.18mm / year, and the surface is covered with a l...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a mesoporous carbon-reinforced iron-based composite material and its preparation method and application, belonging to the technical field of design and preparation of biological materials. The iron-based composite material includes an iron matrix and mesoporous carbon; the preparation method is: mixing by ball milling After iron powder and mesoporous carbon powder, the mesoporous carbon-reinforced iron-based composite was obtained by laser selective melting technology. On the one hand, the galvanic corrosion between mesoporous carbon and iron substrate is used to accelerate the degradation rate; on the other hand, the good adsorption performance of mesoporous carbon is used to promote the deposition of calcium and phosphorus on the surface of the substrate, thereby improving biological activity. The iron-based composite material prepared by the invention has good mechanical properties, a suitable degradation rate and excellent biological activity, and can meet the application requirements of human bone implants.

Description

technical field [0001] The invention relates to a mesoporous carbon-reinforced iron-based composite material and its preparation method and application, belonging to the technical field of biological material design and preparation. Background technique [0002] Iron metal has excellent mechanical properties and can provide sufficient mechanical structural support after being implanted in the body. At the same time, iron can be gradually degraded in the environment of the human body, and the iron ions produced are essential trace elements for the human body. They play many functions in the human body such as transporting oxygen, participating in the process of hematopoiesis and human metabolism. Iron is mainly degraded in the form of electrochemical corrosion in the human body, but its chemical potential is high (-0.44V), and the degradation rate in the in vivo environment is too slow to match the growth rate of new bone tissue. In addition, iron metal also has defects such...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/02B22F3/11A61L27/42A61L27/56A61L27/58
CPCA61L27/427A61L27/56A61L27/58B22F3/11C22C33/0271
Inventor 帅词俊杨友文彭淑平贺崇贤
Owner JIANGXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com