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Preparation method of corrosion-resisting type magnesium alloy surface ceramic membrane material

A magnesium alloy and ceramic membrane technology, applied in the field of ceramic membranes, can solve problems such as poor corrosion resistance, and achieve the effects of improving the electric field environment, improving corrosion resistance, and expanding the breakdown surface

Inactive Publication Date: 2018-09-04
黄智慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problem of poor corrosion resistance on the surface of magnesium alloy materials, a method for preparing a corrosion-resistant magnesium alloy surface ceramic film material is provided

Method used

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  • Preparation method of corrosion-resisting type magnesium alloy surface ceramic membrane material

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example 1

[0019] In terms of parts by weight, weigh 45 parts of 1% lysine solution by mass fraction, 0.1 parts of o-vanillin and 10 parts of absolute ethanol respectively in a Erlenmeyer flask, stir and mix them and place them in a water bath at 45°C for 2 hours, statically Cool to room temperature, filter and collect the filter cake, rinse with dimethyl sulfoxide for 3 times, then dry at 45°C for 3 hours, grind and pass through a 200-mesh sieve to obtain a sieved powder; in parts by weight, weigh Measure 45 parts of absolute ethanol, 10 parts of 1% zinc chloride solution by mass fraction and 1 part of sieved powder in a three-necked flask, then stir and mix with magnetic force at 75°C for 3 hours, then let it stand for 20 hours, filter and collect the filter residue, and use After rinsing the filter residue with absolute ethanol for 3 times, vacuum freeze-drying and grinding to obtain modified powder; in parts by weight, weigh 45 parts of deionized water, 6 parts of calcium acetate, 1 p...

example 2

[0021] In terms of parts by weight, weigh 47 parts of 1% lysine solution by mass fraction, 0.1 part of o-vanillin and 12 parts of absolute ethanol in a Erlenmeyer flask, stir and mix them and place them in a water bath at 47°C for 2 hours, statically Cool to room temperature, filter and collect the filter cake, rinse with dimethyl sulfoxide for 4 times, then dry at 47°C for 4 hours, grind and pass through a 200-mesh sieve to obtain a sieved powder; in parts by weight, weigh Measure 47 parts of absolute ethanol, 12 parts of 1% zinc chloride solution by mass fraction and 2 parts of sieved powder in a three-necked flask, and then stir and mix with magnetic force at 77°C for 4 hours, then let it stand for 22 hours, filter and collect the filter residue, and use After rinsing the filter residue with absolute ethanol for 4 times, vacuum freeze-drying and grinding and crushing, the modified powder was obtained; in parts by weight, 47 parts of deionized water, 7 parts of calcium acetat...

example 3

[0023] In terms of parts by weight, weigh 50 parts of 1% lysine solution by mass fraction, 0.2 parts of o-vanillin and 15 parts of absolute ethanol in a Erlenmeyer flask, stir and mix them and place them in a water bath at 50°C for 3 hours, statically Cool to room temperature, filter and collect the filter cake, rinse with dimethyl sulfoxide for 5 times, then dry at 50°C for 5 hours, grind and pass through a 200-mesh sieve to obtain a sieved powder; in parts by weight, weigh Measure 50 parts of absolute ethanol, 15 parts of 1% zinc chloride solution by mass fraction and 2 parts of sieved powder in a three-necked flask, and then stir and mix with magnetic force at 70°C for 5 hours, then let it stand for 24 hours, filter and collect the filter residue, and use After rinsing the filter residue with absolute ethanol for 5 times, vacuum freeze-drying and grinding and crushing, the modified powder was obtained; in parts by weight, 50 parts of deionized water, 8 parts of calcium aceta...

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Abstract

The invention relates to a preparation method of a corrosion-resisting type magnesium alloy surface ceramic membrane material and belongs to the technical field of ceramic membranes. According to thetechnical scheme, o-vanillin and amine are subjected to condensation reaction to generate one type of Schiff base; the o-vanillin provides oxygen with a very strong coordination capability, so that aligand compound with more abundant structures and more types can be obtained. Rare earth ions have unique chemical properties and the amino acid type Schiff base has a plurality of coordination atomsincluding nitrogen, oxygen and the like; a complexing agent material prepared by extraction and calcium ions are combined to form colloid, so that on one hand, the electrical conductivity of electrolyte is improved; on the other hand, the calcium ions move toward the surface of a metal anode test sample; the calcium ions are complexed so that a condition that the calcium ions form calcium hydroxide or uneasy-to-dissolve calcium salt in an alkaline solution is avoided; an electric field environment adjacent to an anode is improved; a single-time breakdown surface is enlarged and the pore density is reduced, so that the corrosion-resisting performance of the ceramic membrane material is effectively improved.

Description

technical field [0001] The invention relates to a method for preparing a corrosion-resistant magnesium alloy surface ceramic membrane material, which belongs to the technical field of ceramic membranes. Background technique [0002] Magnesium is not only an indispensable element in the human body, but also the main component of bones. Even if magnesium ions are generated in human body fluids, they can be absorbed by surrounding body tissues or excreted through metabolism. They are biodegradable. Magnesium and magnesium The alloy has low density, high strength, density and elastic modulus close to that of human bone, and can avoid stress shielding effect. It is the most potential human implant material. However, the poor corrosion resistance and wear resistance of magnesium alloys greatly limit its application in biomedicine. Surface modification technology can overcome the shortcomings of magnesium alloys, but existing methods such as chemical transformation, physical vapor ...

Claims

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Application Information

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IPC IPC(8): C25D11/30
CPCC25D11/30C25D11/026
Inventor 黄智慧蒋益
Owner 黄智慧
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