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Medical porous Ti-Mn-Cu alloy and preparation method thereof

A ti-mn-cu, alloy technology, applied in the field of medical porous Ti-Mn-Cu alloy and its preparation, can solve the problems of lack of antibacterial properties of medical titanium alloy, high cost of medical titanium alloy, difficulty in preparation of titanium alloy, etc. Avoids toxicity issues, is low cost, eliminates the effect of "stress shielding" effect

Pending Publication Date: 2022-07-15
PANZHIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, most of the alloying elements added are refractory metals with high melting points, which makes the preparation of titanium alloys difficult, and these titanium alloys contain a large number of expensive and limited sources of alloying elements, which makes the cost of the prepared medical titanium alloys relatively high
In addition, these medical titanium alloys lack antimicrobial properties
At present, the antibacterial surface obtained by surface modification of titanium alloy or preparation of coating on its surface has the risk of disappearing antibacterial properties due to friction, wear and other reasons.

Method used

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  • Medical porous Ti-Mn-Cu alloy and preparation method thereof
  • Medical porous Ti-Mn-Cu alloy and preparation method thereof

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specific Embodiment approach

[0039]In a specific embodiment, the preparation method of the medical porous Ti-Mn-Cu alloy comprises:

[0040] a Weigh titanium powder, manganese powder and copper powder with a particle size below 300 mesh, mix them evenly, and dry to obtain a Ti-Mn-Cu mixed powder;

[0041] b. Mix the Ti-Mn-Cu mixed powder in step a with ammonium bicarbonate particles and a binder to obtain a mixture, and the mass ratio of the ammonium bicarbonate particles to the Ti-Mn-Cu mixed powder is 20-60:80-40; preferably The Ti-Mn-Cu mixed powder in step a is mixed with ammonium bicarbonate particles first, and then mixed with a binder to obtain a mixture;

[0042] c Pressing the mixture obtained in step b to obtain a compact, and drying the compact;

[0043] d, vacuum sintering the compact dried in step c, and cooling to obtain a medical porous Ti-Mn-Cu alloy.

[0044] In a specific embodiment, the mixing in step a is carried out on a ball mill, anhydrous ethanol is the ball milling medium, and t...

Embodiment 1

[0059] Weigh 2.5g manganese powder with a particle size of -400 mesh, 1.5g copper powder with a particle size of -400 mesh and 46g titanium powder with a particle size of -325 mesh, add absolute ethanol according to the liquid-solid ratio of 1.2ml:1g, and the ratio of ball to material is 10:1 The mixture was ball milled on a planetary ball mill at 300 rpm for 2 h, and dried at 60 °C for 10 h to obtain a Ti-Mn-Cu mixed powder. Weigh 4g of mixed powder, add 4g of ammonium bicarbonate granules, after mixing evenly, add 5wt% polyvinyl alcohol solution according to 0.01ml / g powder, and mix evenly again; put the mixture into a molding die, under 165MPa pressure Press for 3 minutes to obtain a compact. The compacts were dried in a graphite crucible at 60°C for 10 hours, and then vacuum sintered. The whole sintered at 10 -1 ~10 -3 Pa vacuum degree, firstly heated to 200℃ for 2h at 5℃ / min, then heated to 800℃ for 0.5h at 5℃ / min, finally heated to 1000℃ for 2h at 3℃ / min, cooled to ro...

Embodiment 2

[0061] Weigh 2.5g manganese powder with a particle size of -400 mesh, 2.5g copper powder with a particle size of -400 mesh and 45g titanium powder with a particle size of -325 mesh, add anhydrous ethanol according to the liquid-solid ratio of 1.2ml:1g, and the ratio of ball to material is 10:1 The mixture was ball milled on a planetary ball mill at 300 rpm for 2 h, and dried at 60 °C for 10 h to obtain a Ti-Mn-Cu mixed powder. Weigh 4g of mixed powder, add 4g of ammonium bicarbonate granules, after mixing evenly, add 5wt% polyvinyl alcohol solution according to 0.01ml / g powder, and mix evenly again; put the mixture into a molding die, under 165MPa pressure Press for 3 minutes to obtain a compact. The compacts were dried in a graphite crucible at 60°C for 10 hours, and then vacuum sintered. The whole sintered at 10 -1 ~10 -3 Pa vacuum degree, firstly heated to 200℃ for 2h at 5℃ / min, then heated to 800℃ for 0.5h at 5℃ / min, finally heated to 1000℃ for 2h at 3℃ / min, cooled to r...

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Abstract

The invention relates to a medical porous Ti-Mn-Cu alloy and a preparation method thereof, and belongs to the technical field of medical materials. The medical porous Ti-Mn-Cu alloy is composed of, by mass, 1-15% of manganese, 1-15% of copper and 70-98% of titanium, the porosity of the medical porous Ti-Mn-Cu alloy is 25-70%, the pores comprise macropores and micropores, the average pore size of the macropores is 100-600 micrometers, the micropores are located in the pore walls of the macropores, and the pore size of the micropores is 1-99 micrometers. The medical porous Ti-Mn-Cu alloy has the advantages of being good in biocompatibility, easy to prepare, low in cost, antibacterial and the like, the elastic modulus can be adjusted to be matched with bone tissue, and the medical porous Ti-Mn-Cu alloy can be used as a bone defect repair material.

Description

technical field [0001] The invention relates to a medical porous Ti-Mn-Cu alloy and a preparation method thereof, belonging to the technical field of medical materials. Background technique [0002] Titanium alloys have the advantages of good biocompatibility, high specific strength, and good corrosion resistance in contact with human body fluids, and are often used clinically as bone repair materials or bone replacement materials. Nevertheless, some problems of titanium alloys can cause clinical failure risks, such as the "stress shielding" effect of titanium alloys higher than that of bone tissue, which can lead to bone resorption; some medical titanium alloys currently used in clinics such as Ti -6Al-4V, Ti-5Al-2.5Fe, etc. contain cytotoxic alloying elements such as Al, V, etc.; in addition, these titanium alloys lack antibacterial properties and cannot prevent bacterial infection during implantation surgery and early recovery. Therefore, there is an urgent need to devel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00B22F3/02B22F3/10B22F3/11B22F9/04
CPCC22C14/00B22F3/1103B22F3/1007B22F3/02B22F9/04B22F2009/043
Inventor 赵朝勇伍彩虹麦萍
Owner PANZHIHUA UNIV
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