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Preparation method and application of bacteriostatic bio-active ceramic membrane for porous titanium or titanium alloy surface of lattice structure

A technology of bioactive ceramics and porous ceramic membranes, applied in surface reaction electrolytic coatings, tissue regeneration, electrolytic coatings, etc., can solve the problems of low porosity, high elastic modulus, low friction coefficient, etc. Fast heating effect

Active Publication Date: 2017-05-17
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People use different preparation methods to obtain porous metals, such as powder high-temperature spraying, microbead sintering, metal fiber structure, etc., but they still have some limitations, such as low porosity, relatively high elastic modulus and low coefficient of friction

Method used

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  • Preparation method and application of bacteriostatic bio-active ceramic membrane for porous titanium or titanium alloy surface of lattice structure
  • Preparation method and application of bacteriostatic bio-active ceramic membrane for porous titanium or titanium alloy surface of lattice structure
  • Preparation method and application of bacteriostatic bio-active ceramic membrane for porous titanium or titanium alloy surface of lattice structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Material preparation: Ti-6Al-4V titanium alloy with a porosity of 50% and a porous lattice structure was prepared by electron beam molten metal forming technology.

[0041] 2. Chemical pickling: Pickling solution composition: 40% (volume concentration) HF 1ml / L, 70% (volume concentration) HNO 3 4ml / L, tartaric acid 3g / L, the slow-release agent is o-nitrophenol, and the rest is water. Temperature: room temperature, processing time 10 seconds, immediately wash with tap water for 1 to 2 minutes after taking it out, and then wash with deionized water for 1 to 2 minutes.

[0042] 3. Preparation of prefabricated anodized film: electrolyte composition: sodium carbonate with a concentration of 10g / L, sodium oxalate with a concentration of 3g / L, sodium hydroxide with a concentration of 0.5g / L, and the rest is water.

[0043] During the preparation of the oxide film, refrigeration is used to maintain the electrolyte temperature at 20°C, the power supply mode is DC, and the c...

Embodiment 2

[0051] 1. Material preparation: Ti-6Al-4V titanium alloy with a porosity of 70% and a porous lattice structure was prepared by electron beam molten metal forming technology.

[0052] 2. Chemical pickling: pickling liquid composition: 40% (volume concentration) HF 2ml / L, 70% (volume concentration) HNO 3 6ml / L, oxalic acid 1g / L, the slow-release agent is p-dinitrophenol, and the rest is water. Temperature: room temperature, processing time 10 seconds, immediately wash with tap water for 1 to 2 minutes after taking it out, and then wash with deionized water for 1 to 2 minutes.

[0053] 3. Preparation of prefabricated anodized film: electrolyte composition: sodium bicarbonate with a concentration of 20g / L, sodium citrate with a concentration of 3g / L, oxalic acid with a concentration of 0.5g / L, and the rest is water.

[0054] In the process of oxide film preparation, circulating water is used to maintain the electrolyte temperature at 15°C, the power supply mode is DC, and the co...

Embodiment 3

[0063] 1. Material preparation: A β-titanium alloy with a porosity of 60% and a porous lattice structure was prepared by electron beam melting layer-by-layer forming technology (AM-EBM).

[0064] 2. Chemical pickling: pickling liquid composition: 40% (volume concentration) HF 2ml / L, 70% (volume concentration) HNO 3 6ml / L, tartaric acid 5g / L, slow-release agent is picric acid, and the rest is water. Temperature: room temperature, processing time 10 seconds, immediately wash with tap water for 1 to 2 minutes after taking it out, and then wash with deionized water for 1 to 2 minutes.

[0065] 3. Preparation of prefabricated anodic oxide film: electrolyte composition: sodium bicarbonate with a concentration of 20g / L, sodium oxalate with a concentration of 2g / L, tartaric acid with a concentration of 1g / L, and the rest is water.

[0066] During the preparation of the oxide film, circulating water is used to maintain the electrolyte temperature at 15°C, the power supply mode is DC,...

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Abstract

The invention discloses a preparation method and application of bacteriostatic bio-active ceramic membrane for a porous titanium or titanium alloy surface of a lattice structure and belongs to the technical field of metal surface treatment. The preparation method of the bacteriostatic bio-active ceramic membrane for the porous titanium or titanium alloy surface of the lattice structure comprises the steps of chemical polishing, preparation of a prefabricated oxide film at a direct-current voltage and preparation of the bacteriostatic bio-active ceramic membrane at a bidirectional square-wave pulse voltage. Chemical polishing is conducted through a chemical acid pickling method. Preparation of the prefabricated oxide film is conducted through a low-voltage direct-current anodic oxidation method. Preparation of the bacteriostatic bio-active functional ceramic layer is prepared through a micro-arc oxidation preparation method. The ceramic layer obtained by the adoption of the preparation method is firmly combined with a matrix, the surface of the ceramic layer is provided with a micron-level microcellular structure, and the ceramic layer can greatly improve the bacteriostatic performance and biological activity of the porous titanium or titanium alloy surface. When an interbody fusion cage for the orthopedics field and an implant for the dentistry field are manufactured based on the preparation method of the bacteriostatic bio-active ceramic membrane for the porous titanium or titanium alloy surface of the lattice structure, the synosteosis time of the implant is shortened, and the bacteriostatic performance of the implant is improved.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a preparation method and application of a titanium or titanium alloy surface antibacterial bioactive ceramic film with a porous lattice structure. Background technique [0002] In recent years, the medical community has increasingly discussed the application of porous metal materials in the field of orthopedics. Major orthopedic implant manufacturers around the world have also tried to use various processes to launch implant products with similar surface functions, which indicates that similar products will face challenges. period of rapid growth. Metal porous materials refer to metal materials with a large number of pore groups. Metal porous materials usually have excellent physical properties and good mechanical properties. The fields of medical materials and biochemistry are also more and more concerned and used. People use different preparation methods to ob...

Claims

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Application Information

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IPC IPC(8): C25D11/26A61L27/06A61L27/30A61L27/32A61L27/54A61L27/56A61L27/58
CPCA61L27/06A61L27/30A61L27/32A61L27/54A61L27/56A61L27/58A61L2300/102A61L2300/404A61L2420/02A61L2420/06A61L2430/02A61L2430/12C25D11/26
Inventor 张伟李述军张涛侯文韬郝玉琳王福会
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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