Method for preparing medical three-dimensional gradient netlike carbon fiber/ hydroxyapatite (HA)/ medical stone composite material

A composite material and carbon fiber technology, which is applied in medical science, anodic oxidation, prosthesis, etc., can solve the problems of low strength and poor toughness, and achieve the effect of good density and strength, less defects, and improved bonding ability

Inactive Publication Date: 2012-08-22
LIAONING UNIVERSITY OF TECHNOLOGY
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned existing problems, and provide a preparation method of a three-dimensional gradient mesh carbon fiber/HA/medicine stone medical composite material; thi

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
  • Method for preparing medical three-dimensional gradient netlike carbon fiber/ hydroxyapatite (HA)/ medical stone composite material
  • Method for preparing medical three-dimensional gradient netlike carbon fiber/ hydroxyapatite (HA)/ medical stone composite material
  • Method for preparing medical three-dimensional gradient netlike carbon fiber/ hydroxyapatite (HA)/ medical stone composite material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] 1. The carbon fiber is woven into a three-dimensional gradient mesh carbon fiber skeleton with a porosity of 70% at both ends and a porosity of 40% at the core;

[0030] 2. DC-pulse anodization and alkali treatment of three-dimensional gradient mesh carbon fiber skeleton; 4 HCO 3 0.08mol / L, NH 4 H 2 PO 4 0.005mol / L, Ca(NO 3 ) 2 The 0.01mol / L configuration 3L electrolyte is poured into the electrolytic cell, the woven three-dimensional gradient mesh framework is immersed in the electrolyte as the anode, the graphite sheet is immersed in the electrolyte as the cathode, and a constant current is applied to the anode and the cathode. The current density is 150mA / g, the pulse current density is 300mA / g, the main pulse width is 0.3s, the auxiliary pulse width is 0.1s, the pulse frequency is 1Hz, and the oxidation time is 1min. The sample after DC-pulse anodization is cleaned with deionized water, then soaked in 0.5mol / L NaOH solution at 80℃ for 2 h, then clea...

Example Embodiment

[0035] Example 2

[0036] 1. The carbon fiber is woven into a three-dimensional gradient mesh porous framework with a porosity of 65% at one end and a porosity of 40% at the other end. The pores show a continuous gradient decrease from the high pore end to the low pore end;

[0037] 2. Carry out DC-pulsed anodizing to remove NH 4 HCO 3 0.08mol / L, NH 4 H 2 PO 4 0.005mol / L, Ca(NO 3 ) 2 The 0.01mol / L configuration 3L electrolyte is poured into the electrolytic cell, the woven three-dimensional gradient mesh framework is immersed in the electrolyte as the anode, the graphite sheet is immersed in the electrolyte as the cathode, and a constant current is applied to the anode and the cathode. The current density is 50mA / g, the pulse current density is 100mA / g, the main pulse width is 0.3s, the auxiliary pulse width is 0.1s, the pulse frequency is 1Hz, and the oxidation time is 3min. The sample after DC-pulse anodization is cleaned with deionized water, then soaked in 0.5mol / L NaOH solu...

Example Embodiment

[0042] Example 3

[0043] 1. The carbon fiber is woven into a three-dimensional gradient mesh carbon fiber skeleton with a porosity of 65% at both ends and a porosity of 50% at the core;

[0044] 2. Carry out DC-pulsed anodizing to remove NH 4 HCO 3 0.08mol / L, NH 4 H 2 PO 4 0.005mol / L, Ca(NO 3 ) 2 The 0.01mol / L configuration 3L electrolyte is poured into the electrolytic cell, the woven three-dimensional gradient mesh framework is immersed in the electrolyte as the anode, the graphite sheet is immersed in the electrolyte as the cathode, and a constant current is applied to the anode and the cathode. The current density is 100mA / g, the pulse current density is 200mA / g, the main pulse width is 0.3s, the auxiliary pulse width is 0.1s, the pulse frequency is 1Hz, and the oxidation time is 2min. The sample after DC-pulse anodization is cleaned with deionized water, then soaked in 0.5mol / L NaOH solution at 80℃ for 2 h, then cleaned with deionized water and dried to obtain a modified t...

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 sizeaaaaaaaaaa
Densityaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for preparing a medical three-dimensional gradient netlike carbon fiber/ hydroxyapatite (HA)/ medical stone composite material. The method comprises the following steps of: weaving carbon fibers into a three-dimensional gradient netlike carbon fiber skeleton; performing surface modification treatment on the three-dimensional gradient netlike carbon fiber skeleton;and making nano HA and nano medical stone composite ceramic slurry, compounding the composite ceramic slurry and the three-dimensional gradient netlike carbon fiber skeleton by adopting a centrifugalforming machine, sintering, and thus obtaining the composite material. The method has the advantages that the three-dimensional gradient netlike carbon fiber reinforcing effect is good, much HA can be compounded in a high-porosity area, and the composite material has good surface bioactivity; a low-porosity area has high carbon fiber content, so that the mechanical property of the HA matrix is improved; size completeness, few defects and high density of a blank of the composite material can be ensured by adopting the centrifugal grouting forming machine; and the nano medical stone added into the HA matrix contains a large quantity of trace elements which are beneficial to human body, and is used as a reinforcing phase for improving the strength of the HA matrix.

Description

technical field [0001] The invention relates to a preparation method of a three-dimensional gradient mesh carbon fiber / HA / medicine stone medical composite material. Background technique [0002] Biomedical materials refer to new high-tech materials used to diagnose, treat, repair or replace diseased tissues and organs or enhance their functions; biomedical materials not only have high technical content and economic value, but also have a Life and health are closely related. Due to the aging society, the demand for artificial teeth, artificial bones, and artificial tooth roots is increasing. The rapid development of the automobile industry, accidents such as car accidents often lead to fractures and bone defects. The increase of artificial bone also increases the application of artificial bone. [0003] Biomedical materials can be roughly divided into three categories: medical organic polymer materials, medical metals and their alloys, and medical inorganic non-metallic mate...

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): A61L27/42C25D11/02
Inventor 李强于景媛穆柏春石萍齐国超单凤君唐立丹
Owner LIAONING UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap