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Novel biodegradable Mg-Zn-Y-Nd-Ag antimicrobial magnesium alloy and preparation method thereof

A biodegradable, magnesium alloy technology, applied in the field of new biodegradable Mg-Zn-Y-Nd-Ag antibacterial magnesium alloy and its preparation, can solve the problem of high infection rate of metal implant materials, achieve excellent antibacterial function, The effect of promoting bonding and uniform corrosion

Inactive Publication Date: 2016-12-07
ZHENGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention aims at the problem of high infection rate of metal implant materials currently used clinically, to provide a new type of biodegradable Mg-Zn-Y-Nd-Ag antibacterial magnesium alloy, and to provide the preparation of the alloy method

Method used

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  • Novel biodegradable Mg-Zn-Y-Nd-Ag antimicrobial magnesium alloy and preparation method thereof
  • Novel biodegradable Mg-Zn-Y-Nd-Ag antimicrobial magnesium alloy and preparation method thereof
  • Novel biodegradable Mg-Zn-Y-Nd-Ag antimicrobial magnesium alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of Extruded Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.2 wt%Ag Magnesium Alloy

[0029] The preparation of the first step as-cast Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.2wt%Ag magnesium alloy comprises the following steps:

[0030] (1) Prepare raw materials:

[0031] Calculate the mass of each alloy element required for smelting, among which, the weight of Zn, Y, Nd in the charge is 1.2-1.3 times of its content in the magnesium alloy, and the weight of Ag is 1.1-1.2 times of its content in the magnesium alloy .

[0032] The charge quality required for this Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.2wt%Ag magnesium alloy of smelting 1kg is as follows:

[0033] High-purity magnesium ingot: 941.2g;

[0034] High-purity zinc ingot: 25g;

[0035] Mg-30wt%Y master alloy: 20.8g;

[0036] Mg-30wt%Nd master alloy: 20.8g;

[0037] High-purity silver wire: 2.2g;

[0038] The purity of high-purity magnesium ingot, high-purity zinc ingot and high-purity silver wire is ≥99.9%.

[0039] (2) Preparatio...

Embodiment 2

[0053] Preparation of Extruded Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.4wt%Ag Magnesium Alloy

[0054] The preparation of the first step as-cast Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.4wt%Ag magnesium alloy comprises the following steps:

[0055] (1) Prepare raw materials:

[0056] Calculate the mass of each alloy element required for smelting, wherein the amount of Zn, Y, Nd in the furnace charge is 1.2-1.3 times of its content in the magnesium alloy, and the amount of Ag is 1.1-1.2 times of its content in the magnesium alloy.

[0057] The charge quality required for this Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.4wt%Ag magnesium alloy of smelting 1.1kg is as follows:

[0058] High-purity magnesium ingot: 1210g

[0059] High-purity zinc ingot: 32.2g

[0060] Mg-30wt%Y master alloy: 26.8g

[0061] Mg-30wt%Nd master alloy: 26.8g

[0062] High-purity silver wire: 5.7g

[0063] The purity of high-purity magnesium ingot, high-purity zinc ingot and high-purity silver wire is ≥99.9%.

[0064] (2) Preparation ...

Embodiment 3

[0078] Preparation of Extruded Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.6wt%Ag Magnesium Alloy

[0079] The preparation of the first step cast state Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.6wt%Ag magnesium alloy comprises the following steps:

[0080] (1) Prepare raw materials:

[0081] Calculate the mass of each alloy element required for smelting, wherein the amount of Zn, Y, Nd in the furnace charge is 1.2-1.3 times of its content in the magnesium alloy, and the amount of Ag is 1.1-1.2 times of its content in the magnesium alloy .

[0082] The charge quality required for this Mg-2wt%Zn-0.5wt%Y-0.5wt%Nd-0.6wt%Ag magnesium alloy of smelting 1.3kg is as follows:

[0083] High-purity magnesium ingot: 1020g

[0084] High-purity zinc ingot: 27.2g

[0085] Mg-30wt%Y master alloy: 22.8g

[0086] Mg-30wt%Nd master alloy: 22.8g

[0087] High-purity silver wire: 7.3g

[0088] The purity of high-purity magnesium ingot, high-purity zinc ingot and high-purity silver wire is ≥99.9%.

[0089] (2) Prepara...

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Abstract

The invention provides a novel biodegradable Mg-Zn-Y-Nd-Ag antimicrobial magnesium alloy and a preparation method of the novel biodegradable Mg-Zn-Y-Nd-Ag antimicrobial magnesium alloy and belongs to the field of preparation of magnesium alloy biomedical medical materials. The Mg-Zn-Y-Nd-Ag antimicrobial magnesium alloy is composed of, by weight percentage, 1-3% of Zn, 0.2-1% of Y, 0.2-1% of Nd, 0.05-1.5% of Ag and the balance Mg. In the degradation process of the alloy, a trace amount of Ag+ is generated, the infection around an implant can be inhibited, the postoperative infection rate is lowered, the consumption of antibiotics is reduced, and the medical cost is lowered. The Mg-Zn-Y-Nd-Ag alloy has the good mechanical property and corrosion resistance and meanwhile has the excellent antibacterial function. The alloy has good biocompatibility, can meet the needs of different implants and can be used for vascular stents, bone plates, bone nails and other bone implant materials.

Description

technical field [0001] The invention belongs to the field of preparation of magnesium alloy biomedical materials, and in particular relates to a novel biodegradable Mg-Zn-Y-Nd-Ag antibacterial magnesium alloy and a preparation method thereof. Background technique [0002] With the acceleration of human aging, the increase of trauma, the increase of patients with difficult diseases and the development of high technology, the development of biomedical materials is becoming more and more important. At present, biomedical materials that have been applied in clinic mainly include: metal biomedical materials, organic polymer biomedical materials, inorganic non-metallic biomedical materials, and biomedical composite materials prepared from the above materials. Among all biomedical implant materials, metal materials are the earliest and most widely used in clinical practice. [0003] Magnesium is one of the substances needed for human metabolism. Its content in the human body is se...

Claims

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Application Information

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IPC IPC(8): C22C23/04C22C23/00C22C1/03C22F1/06A61L31/02A61L31/14A61L31/16
CPCC22C23/04A61L31/022A61L31/148A61L31/16A61L2300/102A61L2300/104A61L2300/404A61L2300/412C22C1/03C22C23/00C22F1/06
Inventor 关绍康李爽朱世杰任晨星常蕾王俊王利国张其美
Owner ZHENGZHOU UNIV
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