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Preparing method of antibacterial porous titanium alloy

A titanium alloy, ascorbic acid technology, applied in metal processing equipment, nanotechnology for materials and surface science, nanotechnology, etc., to achieve the effects of strong controllability, convenient operation and simple equipment

Inactive Publication Date: 2020-04-17
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a sintered TiH 2 Powder, element powder, wet method to introduce nano-silver powder, and prepare antibacterial titanium alloy by powder metallurgy method, reduce the probability of bacterial adhesion on rough surface and pores, so as to solve the problem of traditional internal plant-related infection of biological materials, with equipment Simple, easy to operate, strong controllability, etc.

Method used

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  • Preparing method of antibacterial porous titanium alloy
  • Preparing method of antibacterial porous titanium alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A kind of preparation method of antibacterial porous titanium alloy, concrete steps are as follows:

[0033] (1) Weigh TiH 2 Powder, the powder purity is greater than or equal to 99.0%, put the powder into the ball mill tank according to the ball-to-material ratio of 4:1, the charging volume is 40%, use a planetary ball mill, set the ball mill speed to 150r / min, and the ball mill time to 150min. When the particle size is less than 45um, it is for use;

[0034] (2) Weigh silver nitrate and add deionized water to make a silver nitrate solution with a concentration of 0.1mol / L, add dispersant PVP, fully dissolve, and record it as solution A 1 , the amount of dispersant added is solution A 1 5% of silver nitrate mass in medium;

[0035] (3) Weigh the reducing agent ascorbic acid and add deionized water to make reducing agent solution A with a concentration of 0.2mol / L 2 ;

[0036] (4) Add solution A 1 and solution A 2 Put it in a water bath, heat it to the reaction t...

Embodiment 2

[0042] A kind of preparation method of antibacterial porous titanium alloy, concrete steps are as follows:

[0043](1) According to the required composition ratio of Ti-13Nb-13Zr alloy standard, weigh TiH 2 Powder, Nb powder, Zr powder, powder purity greater than or equal to 99.0%, put the powder into the ball mill tank according to the ball-to-material ratio of 4:1, the charging volume is 40%, use a planetary ball mill, set the ball mill speed to 150r / min, The ball milling time is 150min, until the particle size is less than 45um, and set aside;

[0044] (2) Weigh silver nitrate and add deionized water to make a silver nitrate solution with a concentration of 0.5mol / L, add dispersant PVP, fully dissolve, and record it as solution A 1 , the amount of dispersant added is solution A 1 10% of the mass of silver nitrate in medium;

[0045] (3) Weigh the reducing agent ascorbic acid and add deionized water to make reducing agent solution A with a concentration of 1mol / L 2 ;

...

Embodiment 3

[0051] A kind of preparation method of antibacterial porous titanium alloy, concrete steps are as follows:

[0052] (1) According to the required composition ratio of Ti(3-6)Zr(2-4)Mo(24-27)Nb (TLE, a multi-purpose near-β-type medical titanium alloy developed by Northwest Nonferrous Metal Research Institute) alloy standard, Weigh TiH 2 Powder, Zr powder, Mo powder, Nb powder, powder purity greater than or equal to 99.0%, put the powder into the ball mill tank according to the ball-to-material ratio of 4:1, the charging volume is 40%, use a planetary ball mill, set the ball mill speed to 150r / min, the ball milling time is 150min, the ball milling until the particle size is less than 45um, and it is ready for use;

[0053] (2) Weigh silver nitrate and add deionized water to make a silver nitrate solution with a concentration of 2mol / L, add dispersant PVP, fully dissolve, and record it as solution A 1 , the amount of dispersant added is solution A 1 15% of silver nitrate mass...

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Abstract

The invention discloses a preparing method of an antibacterial porous titanium alloy. The method comprises the steps of carrying out ball milling on raw material powder for standby application; preparing a silver nitrate solution, adding a dispersion agent, and marking a formed solution as a solution A1; preparing a reducing agent solution A2; carrying out water bath heating on the solution A1 andthe solution A2 to a reaction temperature, adding the raw material powder in the solution A1, then, adding a formed solution into the solution A2, adjusting the pH value, keeping the pH value constant, after the reaction, taking out the reaction solution for scattered cleaning, carrying out cleaning separately with deionized water and absolute ethyl alcohol for three times, centrifugally precipitating the processed reaction solution, and finally, performing drying to obtain mixed powder; adding ammonium bicarbonate into the mixed powder for uniform mixing, performing pressing forming on the mixture, and carrying out vacuum sintering, so as to obtain the silver-containing porous titanium alloy. The problems that in the prior art, a process for preparing the porous titanium alloy is complex, and pores of the porous titanium alloy do not have the antibacterial capacity are solved, and the method has the characteristics of being simple in equipment, convenient to operate, high in controllability and the like.

Description

technical field [0001] The invention belongs to the technical field of preparing titanium alloys by powder metallurgy, and in particular relates to a method for preparing antibacterial porous titanium alloys. Background technique [0002] With the advancement of medical technology and the continuous improvement of people's living standards, titanium alloys have been widely used as clinical implant materials because of their excellent mechanical properties, specific strength, corrosion resistance and biocompatibility. In China, there are more than 5 million cases of implant applications per year for fractures alone, and implant-related infection is one of the serious postoperative complications, which is difficult to effectively prevent and treat, thereby increasing the suffering of patients. This type of infection is called "Biomaterial-Associated Infections". On average, the incidence of biomaterial-associated infections ranges from 0.5% to 6%. Despite various surgical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/04B22F3/11B22F9/24B22F1/00B82Y40/00B82Y30/00
CPCB22F3/04B22F3/1103B22F9/24B82Y40/00B82Y30/00B22F1/054
Inventor 张家敏杨开雄易健宏甘国友严继康杜景红游昕鲍瑞
Owner KUNMING UNIV OF SCI & TECH
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