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Magnesium alloy material and preparation method thereof

A technology of magnesium alloy and composite film layer, which is applied in the direction of pretreatment surface, coating, device for coating liquid on the surface, etc., can solve the problems of poor corrosion resistance, fast degradation, etc. The crystal grains are obvious and the effect of improving the resistance

Inactive Publication Date: 2018-05-15
肖瀚松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to: aim at the problem that the above-mentioned existing magnesium alloys have poor corrosion resistance and cause excessive degradation in the human body, the present invention provides a magnesium alloy material and a preparation method thereof

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  • Magnesium alloy material and preparation method thereof

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Embodiment 1

[0033] A method for preparing a magnesium alloy material, comprising the following steps:

[0034] (1) Get the nanometer titanium dioxide that particle diameter is 10-50nm and add into water, make sol;

[0035] (2) Adding nano-zinc oxide and polyethylene glycol with a particle size of 10-30nm and stirring evenly to make a composite sol, the mass ratio of nano-titanium dioxide and nano-zinc oxide is 5:1;

[0036] (3) taking the magnesium-zinc-based alloy to be treated, sanding its surface, mechanically polishing it, and cleaning it with acetone and absolute ethanol to prepare a magnesium alloy matrix;

[0037] (4) Dip the magnesium alloy substrate prepared in step (3) into the composite sol prepared in step (2), apply the composite sol on the surface of the magnesium alloy substrate by dip coating method, and fully dry it at 150° C. , repeating this step 3 times to prepare a nano-titanium dioxide / nano-zinc oxide composite film layer.

[0038] (5) Carry out high-temperature ca...

Embodiment 2

[0040] A method for preparing a magnesium alloy material, comprising the following steps:

[0041] (1) Get the nanometer titanium dioxide that particle diameter is 10-50nm and add into water, make sol;

[0042](2) Adding nano-zinc oxide and polyethylene glycol with a particle size of 10-30nm and stirring evenly to make a composite sol, the mass ratio of nano-titanium dioxide and nano-zinc oxide is 3:1;

[0043] (3) taking the magnesium-zinc-based alloy to be treated, sanding its surface, mechanically polishing it, and cleaning it with acetone and absolute ethanol to prepare a magnesium alloy matrix;

[0044] (4) Dip the magnesium alloy substrate prepared in step (3) into the composite sol prepared in step (2), apply the composite sol on the surface of the magnesium alloy substrate by dip coating method, and fully dry it at 150° C. , repeating this step 4 times to prepare a nano-titanium dioxide / nano-zinc oxide composite film layer.

[0045] (5) Carry out high-temperature cal...

Embodiment 3

[0047] A method for preparing a magnesium alloy material, comprising the following steps:

[0048] (1) Get the nanometer titanium dioxide that particle diameter is 10-50nm and add into water, make sol;

[0049] (2) Adding nano-zinc oxide and polyethylene glycol with a particle size of 10-30nm and stirring evenly to make a composite sol, the mass ratio of nano-titanium dioxide and nano-zinc oxide is 1:1;

[0050] (3) taking the magnesium-zinc-based alloy to be treated, sanding its surface, mechanically polishing it, and cleaning it with acetone and absolute ethanol to prepare a magnesium alloy matrix;

[0051] (4) Dip the magnesium alloy substrate prepared in step (3) into the composite sol prepared in step (2), apply the composite sol on the surface of the magnesium alloy substrate by dip coating method, and fully dry it at 200°C , repeating this step 5 times to prepare a nano-titanium dioxide / nano-zinc oxide composite film layer.

[0052] (5) Carry out high-temperature calc...

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Abstract

The invention discloses a magnesium alloy material and a preparation method thereof. The magnesium alloy material comprises a magnesium alloy base body. The magnesium alloy base body is provided witha nanometer titania / nanometer zinc oxide composite membrane layer. According to the magnesium alloy material, due to the fact that nanometer titania and nanometer zinc oxide are combined, it can be guaranteed that the prepared composite membrane layer does not have cracks and has a certain thickness, and the prepared composite membrane layer can play a good role in protecting the magnesium alloy base body; and while it is guaranteed that the composite membrane layer achieves the medicine carrying function, the situation that the magnesium alloy base body is corroded by corrosive ions can alsobe avoided, and the corrosion resisting performance is remarkably improved. In addition, due to the fact that the nanometer zinc oxide is added, the composite membrane layer with different thicknessescan be prepared according to actual needs, the problem that the thickness of a titanium dioxide film prepared through sol gel in the prior art is small is solved, the process is simple, and operationis convenient.

Description

technical field [0001] The invention belongs to the technical field of preparation of medical magnesium alloy materials, and in particular relates to a magnesium alloy material and a preparation method thereof. Background technique [0002] Bone nails, intramedullary nails, etc. are currently commonly used intraosseous fixation devices in clinical practice. They are mainly made of stainless steel, titanium alloy and other materials. The elastic modulus of existing intraosseous fixation materials is much higher than that of human bone. It causes stress shielding effect, so that the damaged part of the bone cannot get the necessary stress stimulation, resulting in incomplete healing, decreased bone strength, delayed bone healing, easy to fracture again, and even cause surgery failure; moreover, most of these materials contain toxic metal elements. The human body will slowly release toxic ions, induce inflammation, and have adverse effects on the human body; another point worth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D3/02
CPCB05D3/0254B05D7/14B05D2202/20
Inventor 肖瀚松
Owner 肖瀚松