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A method for preparing porous biomimetic structure on the surface of titanium-zirconium alloy

A titanium zirconium and alloy technology, applied in the field of biomedical materials, can solve the problems of lack of clinical application reports and blank independent research and development, achieve good mechanical properties and biological properties, solve insufficient mechanical strength, and improve the effect of specific surface area.

Active Publication Date: 2020-04-10
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it has been less than 3 years since the introduction of titanium-zirconium alloy implants in China, and there is still a lack of systematic clinical application reports, and the independent research and development of domestic titanium-zirconium alloy implants is even blank.

Method used

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  • A method for preparing porous biomimetic structure on the surface of titanium-zirconium alloy
  • A method for preparing porous biomimetic structure on the surface of titanium-zirconium alloy
  • A method for preparing porous biomimetic structure on the surface of titanium-zirconium alloy

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Embodiment Construction

[0015] A method for preparing a porous bionic structure on the surface of a titanium-zirconium alloy, comprising the following steps:

[0016] (1) adopt pure sponge titanium and pure zirconium and prepare titanium-zirconium alloy in the vacuum arc melting furnace under argon atmosphere; Zirconium content is as shown in table 1;

[0017] (2) The surface of the titanium-zirconium sample is sandblasted with green silicon carbide emery at a pressure of 4 bar, then placed in acetone, 75vol% ethanol, and distilled water for ultrasonic cleaning and drying;

[0018] (3) Put the sample treated in (2) into HF / HNO 3 Treat in the mixed aqueous solution at room temperature, ultrasonically clean with distilled water, put in HCl / H after drying 2 SO 4 In the mixed solution, it is acid-etched at a certain temperature, ultrasonically cleaned with distilled water, and dried with nitrogen. Among them, the parameters of the two acid treatments are shown in Table 1.

[0019] Table 1 embodiment ...

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Abstract

The invention discloses a method for preparing a porous bionic structure on the surface of titanium-zirconium alloy. The method comprises the steps that carborundum sand blasting is carried out on thesurface of the titanium-zirconium alloy with the zirconium content being 12%-17%, HF / HNO3 and HCl / H2SO4 double acid etching is performed, and a porous bionic morphologic surface can be formed on thesurface of the titanium-zirconium alloy; and the porous bionic morphologic surface has good hydrophilicity and biological activity and can be used as the novel biomaterial for the orthopedic implantation and the dental implantation.

Description

technical field [0001] The invention belongs to the field of biomedical materials and relates to a method for preparing a porous bionic structure on the surface of a titanium-zirconium alloy. Background technique [0002] Metal pure titanium (Ti) is widely used in the field of oral implantology because of its good biocompatibility. However, the mechanical strength of pure titanium is low. In the face of restoration problems such as narrow alveolar ridges, insufficient gaps between missing teeth, single molar loss, high-strength magnetic attachments, and bolting channels, pure titanium with a narrow diameter (Φ ≤3.5mm) and miniature (Φ≤3.0mm) implants have a greatly increased stress fatigue fracture risk, which cannot fully meet the clinical needs. Zirconium has good biocompatibility and corrosion resistance, and its mechanical properties are close to natural alveolar bone. Since Kobayashi et al first proposed the application of titanium-zirconium alloys in the medical fiel...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F1/26C22C14/00
CPCC22C14/00C23F1/26
Inventor 何福明周川王小祥徐建刚蒋杰
Owner ZHEJIANG UNIV