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Controllable degrading magnesium-based metal material

A magnesium-based metal and amino technology, which is applied in metal material coating process, liquid chemical plating, coating, etc., can solve the problems of unreachable and prolonged degradation time of magnesium-based metal materials, and achieve low preparation temperature and high production efficiency. The process is easy to control, avoiding the effects of pyrolysis and excessive thermal stress

Inactive Publication Date: 2016-03-02
WUXI QINGYANG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the degradation time of the prepared magnesium-based metal materials can be extended, it has not yet reached the ideal level.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0031] Preparation of SiO2-enriched nano-bioactive glass particles

[0032] Disperse 10 g of ethyl orthosilicate, 0.85 g of triethyl phosphate, 0.8 g of calcium bicarbonate, 8.0 g of nitric acid tetrahydrate, and 0.8 g of citric acid in absolute ethanol in a round-bottomed flask, stir at room temperature for 3 hours, and place in Seal and age at 60°C for 24 hours, take it out and transfer it to a dry pot to dry at 37°C for 24 hours, then put it in a muffle furnace for calcination at 600°C for 2 hours, take it out and use a ball mill to grind it to 40-100nm to obtain 5.8g of nano-bioactive glass.

specific Embodiment 2

[0033] Nano-bioactive glass particles grafted with tannic acid.

[0034] Get 5 g of nano-biological glass particles obtained in Example 1, dry them, put them into a round bottom flask, disperse them in anhydrous toluene solution, add 37% tannic acid ring-opening polymerization of material quality under nitrogen protection, and react for 35 hours. The reaction product is washed several times with an organic solvent to obtain the grafted tannic acid nano-biologically active glass particles.

[0035] Then the composition of grafted tannic acid nano bioactive glass particles and arginine and lysine (wherein, the composition of arginine and lysine is 15% of the material quality) is dissolved and mixed evenly with dichloromethane A magnesium-based metal material is prepared.

specific Embodiment 3

[0036] Nano-bioactive glass particles grafted with tannic acid.

[0037] Prepare 5 g of nano-biological glass particles according to the method in Example 1, dry them in a round bottom flask, disperse them in anhydrous toluene solution, add 35% tannic acid ring-opening polymerization of the material mass under nitrogen protection, and react for 40 h , the reaction product is washed several times with an organic solvent to obtain the grafted tannic acid nano-biologically active glass particles.

[0038] Then, the nanometer bioactive glass particles of grafted tannic acid and arginine (wherein the arginine is 10% of the mass of the material) are dissolved and mixed with dichloromethane to prepare the magnesium-based metal material evenly.

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Abstract

The invention provides a controllable degrading magnesium-based metal material. The surface of the controllable degrading magnesium-based metal material is coated with biological active glass components modified by tannic acid, wherein the biological active glass components modified by tannic acid is formed by grafting nano biological active glass particles with tannic acid. By controlling the use amount of tannic acid grafted in the modified biological active glass components, adding amino structure compounds and controlling the coating thickness of biological active glass modified by tannic acid, the degrading time of the magnesium-based metal material can be effectively controlled.

Description

technical field [0001] The invention belongs to the field of medical biomaterials, and relates to a controllable degradable magnesium-based metal material. The surface of the controllable-degradable magnesium-based metal material of the present invention is coated with a bioactive glass component modified by tannic acid, wherein the tannic acid modified The active bioactive glass component is formed by grafting tannic acid into nano-bioactive glass particles. By controlling the amount of tannic acid, adding amino structural compounds and coating thickness of tannic acid-modified bioactive glass, it can effectively Control the degradation time and corrosion resistance of magnesium-based metal materials. Background technique [0002] Magnesium is an essential element for human metabolism, its content in the human body is second only to potassium, sodium, and calcium, and bone tissue accounts for about half of all magnesium in the body. Studies have shown that magnesium is a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/04A61L27/54A61L27/32A61L31/02A61L31/16A61L31/08C23C18/12
Inventor 唐靖岚
Owner WUXI QINGYANG MACHINERY MFG
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