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A three-dimensional porous titanium-based magnesium-doped coating and its preparation method

A three-dimensional porous, titanium-based technology, used in coatings, pharmaceutical formulations, pharmaceutical sciences, etc., can solve the problems of high aseptic loosening rate, limited scope and extent of new bone tissue growth, and achieve controllable magnesium content, The effect of easy promotion and application and simple preparation process

Active Publication Date: 2019-11-29
LIAOCHENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, clinical studies have found that titanium and titanium alloys are biologically inert, and after implantation, mechanical chimerism is mainly achieved by the growth of new bone tissue at the implant-bone interface. A high rate of aseptic loosening is still found; secondly, different ages of implant objects and different implant sites have different requirements for the growth rate of new bone tissue; in addition, it is also necessary to fully consider the , Inflammatory response caused by corrosion

Method used

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  • A three-dimensional porous titanium-based magnesium-doped coating and its preparation method
  • A three-dimensional porous titanium-based magnesium-doped coating and its preparation method
  • A three-dimensional porous titanium-based magnesium-doped coating and its preparation method

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Effect test

Embodiment 1

[0025] 1) After grinding and polishing the surface of the pure titanium or titanium alloy substrate, ultrasonically clean it with acetone and absolute ethanol, dry it, and set it aside;

[0026] 2) Prepare Na 2 SiO 3 -KOH-H 2 o 2 Mix the electrolytic solution, add 12g / L Na 2 SiO 3 , 4g / L KOH and 6ml / L H 2 o 2 Mixed according to the volume ratio of 1:1:1, set aside;

[0027] 3) the pure titanium or titanium alloy substrate processed in step 1) is configured in step 2 with Na 2 SiO 3 -KOH-H 2 o 2 Micro-arc oxidation treatment was carried out in the mixed electrolytic solution. When a tiny bright arc appeared on the surface of the substrate accompanied by a rise in the temperature of the electrolyte, the substrate was taken out and rinsed with deionized water to obtain the following: figure 1 The porous morphology shown in (a).

[0028] 4) Preparation of the deposition target system: using ethyl orthosilicate, triethyl phosphate, and calcium and magnesium correspondin...

Embodiment 2

[0033] 1) After grinding and polishing the surface of the pure titanium or titanium alloy substrate, ultrasonically clean it with acetone and absolute ethanol, dry it, and set it aside;

[0034] 2) Add 10g / L of Na 2 SiO 3 , 10g / L Na 3 PO 4 Dissolved with 8g / L NaF at a volume ratio of 1:1:1 to form Na 2 SiO 3 -Na 3 PO 4 -NaF mixed electrolytic solution; standby;

[0035] 3) the pure titanium or titanium alloy substrate processed in step 1) is configured in step 2 with Na 2 SiO 3 -Na 3 PO 4 -NaF mixed electrolytic solution for micro-arc oxidation treatment, when a tiny bright arc appears on the surface of the substrate, accompanied by an increase in the temperature of the electrolyte, the substrate is taken out and rinsed with deionized water to obtain the following: figure 1 The porous morphology shown in (a).

[0036] 4) Preparation of deposition target system: using ethyl orthosilicate, triethyl phosphate, and calcium and magnesium corresponding nitrates as silico...

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Abstract

The invention discloses a three-dimensional porous titanium-based magnesium-doping coating and a preparing method thereof. Porous treatment is conducted on the surface of pure titanium or a titanium alloy matrix, and then the three-dimensional porous titanium-based magnesium-doping coating is formed through bioactive glass modification. The prepared three-dimensional porous titanium-based magnesium-doping coating has the advantages that elasticity modulus is close to that of hard bone tissue, bonding strength is high, chemical property is stable, the porous structure and bone induction elements are obtained, and new bone growth and combination are facilitated. In-situ generation of the porous structure is achieved on the surface of the surface of titanium or the titanium alloy matrix, and the pore size can be adjusted by adjusting electrolyte constitutes, concentration and technological conditions; pulse deposition of a magnesium-doping bioactive glass coating is conducted on the titanium-based porous structure, the deposition technique and target constituents are changed, and the microstructure and thickness of the coating and the content of magnesium in the coating are made controllable and adjustable. The preparing process is simple and quick, operation is convenient and controllable, and application and popularization are easy.

Description

technical field [0001] The invention belongs to the field of new materials, and specifically designs a three-dimensional porous titanium-based magnesium-doped coating and a preparation method thereof. Background technique [0002] As a class of medical metal materials, titanium and titanium alloys have the advantages of low density (close to human bone), high specific strength, corrosion resistance, and good biocompatibility, and have become the preferred bone substitute materials for surgical implants. However, clinical studies have found that titanium and titanium alloys are biologically inert, and mechanical chimerism is achieved mainly by the growth of new bone tissue at the implant-bone interface after implantation. However, the scope and degree of new bone tissue growth is limited, and long-term follow-up A high rate of aseptic loosening is still found; secondly, different ages of implant objects and different implant sites have different requirements for the growth ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/56A61L27/54A61L27/06A61L27/30
CPCA61L27/06A61L27/306A61L27/54A61L27/56A61L2300/10A61L2300/606A61L2400/18A61L2430/02
Inventor 马杰王长征黄宝旭赵性川
Owner LIAOCHENG UNIV
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