Micro-arc oxidation-electrodeposition preparation method of magnesium-based bioactive coating

A technology of micro-arc oxidation and active coating, applied in the direction of coating, anodic oxidation, electrolytic inorganic material coating, etc., to achieve the effect of matching mechanical properties

Inactive Publication Date: 2010-05-19
ZHENGZHOU UNIV
View PDF5 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention aims at the deficiency of single preparation process, provides a kind of micro-arc oxidation-electrodeposition preparation method of magnesium-based bioactive coating

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
  • Micro-arc oxidation-electrodeposition preparation method of magnesium-based bioactive coating
  • Micro-arc oxidation-electrodeposition preparation method of magnesium-based bioactive coating
  • Micro-arc oxidation-electrodeposition preparation method of magnesium-based bioactive coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The method for preparing a biologically active coating by micro-arc oxidation-electrodeposition on the surface of Mg-2wt%Zn alloy comprises the following steps:

[0045] (1) Pretreatment base material: use 100 # 、200 # 、400 # 、600 # , 800 # 、1000 # After polishing the base material in turn with SiC metallographic sandpaper, place the base material in an acetone / absolute ethanol mixed solution with a volume ratio of 1:1 and ultrasonically clean it for 10 minutes to remove impurities and grease on the base material, and then dry it naturally at room temperature spare;

[0046] (2) Preparation of micro-arc oxidation electrolyte: micro-arc oxidation electrolyte is an aqueous solution composed of the following components: Na 3 PO 4 0.1mol / L, NaOH 0.05mol / L;

[0047] (3) Micro-arc oxidation: the magnesium-based base material processed in step (1) is used as the anode, and the stainless steel sheet is used as the cathode, and the anode and the cathode are immersed in t...

Embodiment 2

[0059] The method for preparing a bioactive coating by micro-arc oxidation-electrodeposition on the surface of Mg-3wt%Al alloy comprises the following steps:

[0060] (1) Pretreatment base material: use 100 # 、200 # 、400 # 、600 # , 800 # 、1000 # After polishing the base material with SiC metallographic sandpaper in sequence, place the base material in an acetone / absolute ethanol mixed solution with a volume ratio of 1:1 and ultrasonically clean it for 5 minutes to remove impurities and grease on the base material, and then dry it naturally at room temperature spare;

[0061] (2) Preparation of micro-arc oxidation electrolyte: micro-arc oxidation electrolyte is an aqueous solution composed of the following components: Na 3 PO 4 0.06mol / L, NaOH 0.025mol / L;

[0062] (3) micro-arc oxidation: take the magnesium-based base material processed in step (1) as the anode, and the stainless steel sheet as the cathode, and the anode and the cathode are immersed in the electrolyte p...

Embodiment 3

[0067] The method for preparing a biologically active coating by micro-arc oxidation-electrodeposition on the surface of pure magnesium (99.99wt%) alloy comprises the following steps:

[0068] (1) Pretreatment base material: use 100 # 、200 # 、400 # 、600 # , 800 # 、1000 # After polishing the base material with SiC metallographic sandpaper in sequence, place the base material in an acetone / absolute ethanol mixed solution with a volume ratio of 1:1 and ultrasonically clean it for 15 minutes to remove impurities and grease on the base material, and then dry it naturally at room temperature spare;

[0069] (2) Preparation of micro-arc oxidation electrolyte: micro-arc oxidation electrolyte is an aqueous solution composed of the following components: Na 3 PO 4 0.19mol / L, NaOH 0.075mol / L;

[0070] (3) Micro-arc oxidation: the magnesium-based base material processed in step (1) is used as the anode, and the stainless steel sheet is used as the cathode, and the anode and the cat...

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
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a micro-arc oxidation-electrodeposition preparation method of a magnesium-based bioactive coating. The preparation method comprises the following steps: putting a magnesium-based base material in micro-arc oxidation electrolyte after pretreatment to perform micro-arc oxidation reaction to obtain a micro-arc oxidation coating sample; then, putting the micro-arc oxidation coating sample in electrodeposition electrolyte to perform electrodeposition reaction; and after electrodeposition, taking the sample out, and washing and drying the sample. The micro-arc oxidation-electrodeposition preparation method has the advantages that a biologic coating prepared by the method has high binding property with a base material; and the entire biologic coating has excellent corrosion resistance, bioactivity and compatibility; moreover, the formed bioactive coating is a composite coating (comprising HA, OCP, Mg3(PO3)2 and MgO); and because the composite coating comprises OCP, problems that the degradation of pure HA is difficult are avoided and only an HA crust is left after the degradation of formed magnesium alloy can be avoided.

Description

technical field [0001] The invention belongs to the field of preparation of biomedical materials, and relates to material surface coating technology, in particular to a micro-arc oxidation-electrodeposition preparation method of a magnesium-based bioactive coating. Background technique [0002] Hard tissue implant materials are an important part of biomaterials. Because of their wide application and large demand, they have become a hot spot for research and development by scientific and technological workers in various countries; biomedical metal materials have excellent biomechanical properties, processing properties and reliability. It is the most widely used load-bearing implant material in clinical practice. The metal materials used in human hard tissue repair include medical stainless steel, cobalt alloy, titanium alloy and shape memory alloy. However, with the passage of time, the scope of application of metal internal fixation has expanded, and its own shortcomings ha...

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 Applications(China)
IPC IPC(8): C25D9/04C25D11/30A61L27/32A61L27/04
Inventor 关绍康陈娟王利国李文任晨星
Owner ZHENGZHOU UNIV
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