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Preparation method of anti-microbial type medical porous Ti-Cu alloy having bioactivity

A technology of biological activity and alloy, which is applied in the field of powder metallurgy preparation of metal materials, can solve the problems of antibacterial and low elastic modulus medical titanium alloys, and achieve the effect of improving biological activity, simple and convenient preparation method, and low elastic modulus

Inactive Publication Date: 2018-04-13
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that there is no medical titanium alloy with biological activity, antibacterial property and low elastic modulus at home and abroad so far, and to provide a kind of antibacterial medical porous Ti-Cu alloy with biological activity preparation method

Method used

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  • Preparation method of anti-microbial type medical porous Ti-Cu alloy having bioactivity
  • Preparation method of anti-microbial type medical porous Ti-Cu alloy having bioactivity
  • Preparation method of anti-microbial type medical porous Ti-Cu alloy having bioactivity

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specific Embodiment approach 1

[0023] Specific embodiment one: the preparation method of the antibacterial medical porous Ti-Cu alloy with biological activity in this embodiment is carried out according to the following steps: (1) powder blending: titanium powder, copper powder and magnesium powder are batched according to a certain ratio; (2) Ball milling: the prepared powder is put into a stainless steel ball milling tank for ball milling; (3) compact: the powder after ball milling is molded into a compact under a pressure of 500~1000MPa; (4) furnace loading: the obtained compact and The green silicon carbide powder microwave-assisted heating material is placed in a polycrystalline mullite fiber insulation bucket, and then the insulation bucket is placed in a microwave sintering furnace; (5) Microwave sintering: After the vacuum degree in the furnace cavity is pumped to less than 0.1Pa, Fill with argon gas with a purity of 99.999%, control the output power of the microwave sintering furnace, conduct microw...

specific Embodiment approach 2

[0025] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step (1), the mass percentage of copper powder in the ingredients is 5-15%, the mass percentage of magnesium powder is 5-15%, and the rest is titanium powder. Other steps and selected parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0026] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the purity of titanium powder, copper powder and magnesium powder in the powder mix described in step (1) is all above 99.5%, and the particle size of titanium powder is 9 ~45μm, the particle size of copper powder is 13~45μm and the particle size of magnesium powder is 45~150μm. Other steps and selected parameters are the same as those in Embodiment 1.

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Abstract

A preparation method of an anti-microbial type medical porous Ti-Cu alloy having bioactivity comprises the steps of (1) preparing powder, wherein titanium powder, copper powder and magnesium powder are mixed according to a certain mass percentage ratio; (2) conducting ball milling, wherein the mixed powder is placed in a stainless steel ball mill tank for ball milling; (3) conducting blank pressing, wherein the ball milled powder material is mold-pressed into a pressed blank at the pressure of 500-1000 MPa; (4) conducting furnace charging, wherein the obtained pressed blank and a microwave-assisted heating material are placed in a polycrystal mullite fiber heat preservation barrel, and the polycrystal mullite fiber heat preservation barrel is placed in a microwave sintering furnace; (5) obtaining the ideal anti-microbial type medical porous Ti-Cu alloy having the bioactivity through microwave sintering. The preparation method of the anti-microbial type medical porous Ti-Cu alloy havingthe bioactivity has the technical effects that the preparation method is easy and convenient to perform, the sintering period is short, the energy consumption is small, the preparation method is suitable for industrial production, the sintered porous Ti-Cu alloy has excellent bioactivity and anti-microbial property and can be used as repair and substitute materials of bones, joints, artificial tooth roots and other hard tissue.

Description

technical field [0001] The invention relates to a method for preparing metal material powder metallurgy, in particular to a method for preparing medical porous Ti-Cu alloy by microwave sintering. Background technique [0002] Due to its light weight, high specific strength, excellent corrosion resistance and biocompatibility, good toughness and impact resistance and other advantages, titanium alloy has been widely used in human hard tissue transplantation materials. However, there are still three problems in the clinical application of titanium alloys. First of all, the elastic modulus of titanium alloy is ~110GPa, which is much larger than that of artificial bone (<20GPa), which is prone to cause stress shielding; secondly, when the implant is implanted in the human body, it is easy to cause bacterial infection; thirdly, titanium alloy It is an inert material, has no biological activity, and cannot form osseointegration with bone. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): C22C1/04C22C14/00B22F3/11
CPCC22C1/0458B22F3/11B22F2003/1054B22F2998/10C22C14/00B22F2009/043B22F3/02
Inventor 徐吉林陶寿晨罗军明
Owner NANCHANG HANGKONG UNIVERSITY
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