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Preparation method of high-strength biological zinc-magnesium alloy composite material

A technology of zinc-magnesium alloy and composite materials, which is applied in the field of medical materials, can solve the problems of zinc-magnesium alloy coatings not being able to effectively exert tightness, corrosion fatigue, and toxic ions, so as to improve biological activity and compatibility, and improve corrosion resistance ability, the effect of matching mechanical properties

Inactive Publication Date: 2018-11-16
FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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Problems solved by technology

[0004] The technical problem to be solved by the present invention: the existing zinc-magnesium alloy coating cannot effectively play the function of tightly bonding the substrate and the new tissue, and part of the substrate is exposed to body fluids to cause corrosion, which will also cause corrosion fatigue, fatigue, and release toxic The problem of ions provides a preparation method of high-strength zinc-magnesium alloy composite materials for biological use

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  • Preparation method of high-strength biological zinc-magnesium alloy composite material

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Embodiment Construction

[0016] According to the mass ratio of 1:1, mix 200 mesh zinc powder and 200 mesh magnesium powder and place them in a crucible, place the crucible in a tube-type atmosphere furnace, and feed a mixed gas of sulfur hexafluoride and carbon dioxide in an equal volume ratio , remove the air, control the mixed gas flow rate to 45-50mL / min, then raise the temperature to 750-800°C at 5°C / min, heat-preserve and melt for 10-15min and pour into the mold, let it stand and cool to room temperature, demould and collect The alloy matrix is ​​obtained; according to the molar ratio of 1:8:100, silicon dioxide, sodium oxide and 10% aqueous solution of tetrapropylammonium hydroxide are stirred and mixed, and placed at 75-85°C for 3-5 hours, and the reaction is obtained. Add the alloy matrix to the reaction solution at a mass ratio of 1:10, and place it at 180-200°C for heat preservation and crystallization treatment. After the crystallization is completed, collect the crystallization-coated matri...

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Abstract

The invention relates to a preparation method of a high-strength biological zinc-magnesium alloy composite material, and belongs to the technical field of medical materials. The method is characterized in that an in-situ hydrothermal synthesis technology is adopted to coat the surface of an alloy substrate with a molecular sieve structure film having an excellent structure, and a large amount of afilm forming solution penetrates into the surface of the material through capillary slurry suction and crystallizes to form molecular sieve particles, the formed molecular sieve particles have a porous structure, and a crystal enters the pores of the molecular sieve and covers the surface of the molecular sieve to form a mechanical interlocking interface structure between the coating outer layerand an oxide layer, so the bonding property between the coating and the substrate is improved; and the performances of the plating coating layer are between those of a medical metal and a calcium phosphate salt ceramic, so the composite coating and the substrate have matched mechanical properties, and the corrosion resistance of the composite system is improved, thereby the overall biological activity and the compatibility are improved.

Description

technical field [0001] The invention relates to a preparation method of a high-strength biological zinc-magnesium alloy composite material, which belongs to the technical field of medical materials. Background technique [0002] Biomedical materials are one of the four pillars of biomedical engineering. Their application in medicine provides a rich material basis for the development of medicine, pharmacy, biology and other disciplines. In turn, the progress of these disciplines also continuously promotes biomedicine. further development of materials. Biomedical materials science is a new discipline created by the cooperation, mutual reference and mutual penetration of multiple disciplines, and breaking through the narrow scope of the old disciplines. Due to the rapid development of disciplines such as biomedicine and material science, as well as the prolongation of human life, the frequent occurrence of accidental injuries such as traffic accidents and sports trauma, human ...

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Application Information

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IPC IPC(8): C22C1/02C23C26/00C25D9/08A61L27/30A61L27/04A61L27/32A61L27/50A61L27/56
CPCA61L27/047A61L27/306A61L27/32A61L27/50A61L27/56A61L2400/18A61L2420/02A61L2420/04A61L2430/02C22C1/02C23C26/00C25D9/08
Inventor 胡次兵韩桂林
Owner FOSHAN GAOMING DISTRICT ZHUAHE NEW MATERIAL TECH CO LTD
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