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Magnesium alloy material with ca-p coating on surface carrying metal ions and its preparation method and application

A technology of metal ions and magnesium alloys, applied in metal material coating technology, coatings, pharmaceutical formulations, etc., can solve the problems of biocompatibility and antibacterial performance that need to be further improved, so as to improve physiological corrosion performance, accelerate deposition, and prevent Effects requiring special equipment

Active Publication Date: 2020-09-08
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the surface modification of Ca-P coatings on magnesium alloys can significantly improve their corrosion resistance, their biocompatibility (such as osteoinductivity, osseointegration, antibacterial properties, etc.) needs to be further improved.

Method used

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  • Magnesium alloy material with ca-p coating on surface carrying metal ions and its preparation method and application
  • Magnesium alloy material with ca-p coating on surface carrying metal ions and its preparation method and application
  • Magnesium alloy material with ca-p coating on surface carrying metal ions and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1 surface carries Zn 2+ Preparation of Ca-P Coated Magnesium Alloy Materials

[0033] 1) Chemical treatment of magnesium alloy surface

[0034] The polished magnesium alloy samples were immersed in NaOH solution and Na 3 PO 4 12H 2The mixed solution of O solution was treated for 2 hours, the treatment temperature was 80°C, the concentration of NaOH solution in the mixed solution was 20 / L, Na 3 PO 4 12H 2 The concentration of O solution is 5g / L.

[0035] 2) Preparation of magnesium alloy material with polydopamine coating fixed on the surface

[0036] Step 1) Submerge the chemically treated magnesium alloy material into a 0.1 mg / ml dopamine solution at pH 8.0, react at room temperature for 24 hours, then fully wash and dry, and repeat several times to obtain a magnesium alloy material with a polydopamine coating fixed on the surface.

[0037] 3) Preparation of magnesium alloy material with chitosan immobilized on the surface

[0038] The magnesium all...

Embodiment 2

[0043] Example 2 Surface-loaded Ag + Preparation of Ca-P Coated Magnesium Alloy Materials

[0044] 1) Chemical treatment of magnesium alloy surface

[0045] The polished magnesium alloy samples were immersed in NaOH solution and Na 3 PO 4 12H 2 The mixed solution of O solution was treated for 12 hours, the treatment temperature was 50°C, the concentration of NaOH solution in the mixed solution was 60g / L, Na 3 PO 4 12H 2 The concentration of O solution is 20g / L.

[0046] 2) Preparation of magnesium alloy material with polydopamine coating fixed on the surface

[0047] The magnesium alloy material was immersed in a 1 mg / ml dopamine solution with a pH of 8.0, reacted at room temperature for 12 hours, fully cleaned and dried, and repeated several times to obtain a magnesium alloy material with a polydopamine coating fixed on the surface.

[0048] 3) Preparation of magnesium alloy material with chitosan immobilized on the surface

[0049] The magnesium alloy material with ...

Embodiment 3

[0054] Example 3 surface loaded with Sr 2+ Preparation of Ca-P Coated Magnesium Alloy Materials

[0055] 1) Chemical treatment of magnesium alloy surface

[0056] The polished magnesium alloy samples were immersed in NaOH solution and Na 3 PO 4 12H 2 The mixed solution of O solution was treated for 7 hours, the treatment temperature was 65°C, the concentration of NaOH solution in the mixed solution was 40g / L, Na 3 PO 4 12H 2 The concentration of O solution is 12.5g / L.

[0057] 2) Preparation of magnesium alloy material with polydopamine coating fixed on the surface

[0058] The magnesium alloy material was immersed in a 0.5mg / ml dopamine solution with a pH of 8.0, reacted at room temperature for 18 hours, fully cleaned and dried, and repeated several times to obtain a magnesium alloy material with a polydopamine coating fixed on the surface.

[0059] 3) Preparation of magnesium alloy material with chitosan immobilized on the surface

[0060] The magnesium alloy materi...

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Abstract

The invention discloses a magnesium alloy material for a Ca-P coating with surface-loaded metal ions as well as a preparation method and the application of the magnesium alloy material. The magnesiumalloy material for the Ca-P coating with the surface-loaded metal ions comprises a magnesium alloy material of which the surface is fixed with a polydopamine coating, a chitosan coating and a Ca-P coating loaded with the metal ions from bottom to top. The magnesium alloy material for the Ca-P coating with the surface-loaded metal ions, prepared by the invention, has good corrosion resistance and biocompatibility.

Description

technical field [0001] The invention relates to the technical field of biological materials, in particular to a Ca-P coated magnesium alloy material with metal ions on the surface and its preparation method and application. The method is used to modify the surface of the magnesium alloy to improve the corrosion resistance of the magnesium alloy and biocompatibility. Background technique [0002] In recent years, magnesium alloys have attracted great attention of researchers in degradable bone implant materials due to their good mechanical properties and biodegradable properties. The density and modulus of elasticity of magnesium alloys are similar to those of human bone, which can effectively avoid the stress shielding effect after implantation, thereby benefiting bone tissue healing; at the same time, magnesium alloys are easy to degrade in physiological environments, and can be avoided when applied to fracture fixation devices. Removal by the second operation reduces the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/40A61L27/04A61L27/50A61L27/34A61L27/32A61L27/30A61L27/54C23C18/52C23C18/18
CPCA61L27/047A61L27/306A61L27/32A61L27/34A61L27/50A61L27/54A61L2300/602A61L2400/18A61L2430/02C23C18/1834C23C18/52C08L79/02C08L5/08
Inventor 潘长江徐静贡志昊刘涛权莉高凡龚韬
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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