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Preparation method of strong corrosion-resistant magnesium alloy biological composite material

A composite material and magnesium alloy technology, which is applied in the field of preparation of strong corrosion-resistant magnesium alloy bio-composite materials, can solve problems such as hemolysis and magnesium alloy failure

Inactive Publication Date: 2019-07-12
NOTTING CHANGZHOU PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to aim at a series of biological problems such as the degradation rate of magnesium alloys in the body is greater than the growth rate of human bone itself, and the release of hydrogen gas during the corrosion process, which may cause hemolysis due to the alkalinization of the environment, resulting in the degradation of magnesium alloys. The problem that it has failed without fully exerting its function provides a preparation method of a strong corrosion-resistant magnesium alloy biocomposite material

Method used

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  • Preparation method of strong corrosion-resistant magnesium alloy biological composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In parts by weight, weigh 45 parts of deionized water, 10 parts of sodium phosphate, 6 parts of 10% sodium hydroxide solution and 10 parts of 10% sodium bicarbonate solution in a three-necked flask, stir and mix. Stand at room temperature for 6 hours to obtain an alkali washing solution; weigh 45 parts of deionized water, 3 parts of chromium oxide and 3 parts of 15% nitric acid by mass fraction respectively in a three-necked flask, stir and mix and place Stand at room temperature for 6 hours to obtain pickling solution; weigh 45 parts of deionized water, 1 part of silver nitrate, and 1 part of 1% nitric acid in Erlenmeyer flasks by weight, stir and mix to obtain etching solution. solution; take the magnesium alloy substrate and soak the magnesium alloy substrate in the alkali washing solution according to the mass ratio of 1:15, stir and mix and place it under 200W for ultrasonic cleaning for 15min, take out the magnesium alloy substrate after washing and then press the ...

Embodiment 2

[0027] In parts by weight, weigh 48 parts of deionized water, 12 parts of sodium phosphate, 7 parts of 10% sodium hydroxide solution and 12 parts of 10% sodium bicarbonate solution in a three-necked flask, stir and mix. Stand at room temperature for 7 hours to obtain an alkali washing solution; weigh 47 parts of deionized water, 4 parts of chromium oxide and 4 parts of 15% nitric acid by mass fraction respectively in a three-necked flask, stir and mix Stand at room temperature for 7 hours to obtain pickling solution; weigh 47 parts of deionized water, 2 parts of silver nitrate, and 2 parts of 1% nitric acid in Erlenmeyer flasks by weight, stir and mix to obtain etching solution. solution; take the magnesium alloy substrate and soak the magnesium alloy substrate in the alkaline washing solution according to the mass ratio of 1:15, stir and mix and place it under 200-300W for ultrasonic cleaning for 17min, take out the magnesium alloy substrate after washing and then wash it acco...

Embodiment 3

[0029] In parts by weight, weigh 50 parts of deionized water, 15 parts of sodium phosphate, 8 parts of 10% sodium hydroxide solution and 15 parts of 10% sodium bicarbonate solution in a three-necked flask, stir and mix. Stand at room temperature for 8 hours to obtain an alkali washing solution; weigh 50 parts of deionized water, 5 parts of chromium oxide and 5 parts of 15% nitric acid by mass fraction respectively in a three-necked flask, stir and mix and place Stand still at room temperature for 8 hours to obtain pickling solution; weigh 50 parts of deionized water, 2 parts of silver nitrate, and 2 parts of 1% nitric acid in an Erlenmeyer flask, stir and mix to obtain an etching solution. solution; take the magnesium alloy substrate and soak the magnesium alloy substrate in the alkali washing solution according to the mass ratio of 1:15, stir and mix and place it under 300W for ultrasonic cleaning for 20min, take out the magnesium alloy substrate after washing and then press t...

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Abstract

The invention relates to a preparation method of a strong corrosion-resistant magnesium alloy biological composite material, and belongs to the technical field of biological materials. The technical scheme comprises that a blue algae material is effectively cultured by coating the surface of a magnesium alloy with the blue algae material; the surface of the material is effectively coated by nanoparticles formed after calcination, the surface of calcined carbon black has a large number of oxygen-containing functional groups, the surface of the carbon black is allowed to show negative electricity, a HA (hydroxyapatite) phase is promoted to be precipitated and separated out from a solution in a mineralization process, and a hydroxyapatite composite carbon black coating layer is formed. Therefore, the coated carbon black coating layer can promote the uniform growth of hydroxyapatite, flaky crystals with fine morphology and size are obtained, the micro-morphology of the composite coating layer is more uniform and compact, and the gaps between the flaky hydroxyapatite crystals are much less than the gaps of a coating layer coated by a single layer, so the coating layer shows good corrosion resistance, and can effectively improve the corrosion resistance and use aging performance of magnesium alloy materials.

Description

technical field [0001] The invention relates to a preparation method of a strong corrosion-resistant magnesium alloy biological composite material, which belongs to the technical field of biological materials. Background technique [0002] At present, there are few types of biomedical metal materials that can be applied clinically, including: pure metal zirconium, cobalt-based alloys, noble metals, stainless steel, titanium alloys, and nickel-titanium alloys. These materials are all non-degradable biomedical materials. If such materials stay in the human body for a long time, they will cause a series of adverse body reactions, and it is necessary to take related drugs for immunotherapy or take them out through a second operation. Make the patient bear the burden of pain again. Because of this, biodegradable biomedical metal materials, as a new material, have become the focus of attention in related fields in recent years, and are known as a class of revolutionary metal biom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L31/02A61L31/14A61L31/08A61L31/10C23G1/22C23G1/12C23F1/22C23C18/12
CPCA61L31/022A61L31/08A61L31/084A61L31/086A61L31/088A61L31/10A61L31/14A61L31/146A61L2400/12C23C18/1204C23F1/22C23G1/12C23G1/22C08L3/02
Inventor 龙仕君
Owner NOTTING CHANGZHOU PRECISION MACHINERY
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