Preparation method for forming second-level porous active surface structure on titanium material surface through mixed alkali

A technology of active surface and mixed alkali, which is applied in the field of preparation of secondary porous active surface structure, can solve the problems of low biological activity of titanium and titanium alloy, low bonding strength of bone tissue, etc., to promote integration, promote nucleation and growth, The effect of accelerating speed

Inactive Publication Date: 2015-03-25
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problems of low biological activity and low bonding strength with bone tissue of existing titanium and titan...

Method used

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  • Preparation method for forming second-level porous active surface structure on titanium material surface through mixed alkali
  • Preparation method for forming second-level porous active surface structure on titanium material surface through mixed alkali

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specific Embodiment approach 1

[0016] Specific embodiment one: In this embodiment, a preparation method for forming a secondary porous active surface structure on the surface of a titanium material by using a mixed alkali is carried out according to the following steps:

[0017] 1. Grinding treatment: The titanium material is polished step by step with 200#, 400#, 600# and 1000# metallographic sandpaper until the surface has a metallic luster, and then at room temperature, first use acetone ultrasonic cleaning for 15min~30min, and then use alcohol Ultrasonic cleaning for 15 minutes to 30 minutes, and finally drying to obtain polished titanium materials;

[0018] 2. Sand blasting treatment: Sand blast the polished titanium material with alumina particles, and then at room temperature, first use acetone ultrasonic cleaning for 15 minutes to 30 minutes, then use alcohol ultrasonic cleaning for 15 minutes to 30 minutes, and finally dry to obtain Titanium material after sandblasting;

[0019] 3. Acid etching tr...

specific Embodiment approach 2

[0023] Embodiment 2: This embodiment is different from Embodiment 1 in that: the titanium material in step 1 is titanium or titanium alloy. Others are the same as the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the particle size of the alumina particles in the sand blasting treatment in step 2 is 300 μm, the treatment pressure is 0.3 KPa, and the sand blasting time is 30 s. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a preparation method for forming a second-level porous active surface structure on a titanium material surface through mixed alkali. The preparation method mainly solves the problems that the biological activity of existing titanium and titanium alloy is low, and the combination strength with bone tissue is low. The preparation method comprises the steps that firstly, a titanium material is ground level by level through 200# metallographic abrasive paper, 400# metallographic abrasive paper, 600# metallographic abrasive paper and 1000# metallographic abrasive paper, and then ultrasonic cleaning is conducted on the titanium material through acetone and ethyl alcohol in sequence and then dried under the room temperature; secondly, sand blasting is conducted on the preprocessed titanium material through aluminum oxide particles; thirdly, the titanium material obtained after the sanding blasting is steeped with the sulfuric acid solution; fourthly, the acid etched titanium material is placed in a mixed alkali solution to be processed; fifthly, the titanium material obtained after alkali-heat treatment is cleaned through deionized water and absolute ethyl alcohol in sequence and then dried; sixthly, heat treatment is conducted on the titanium material obtained after alkali treatment for 60 min under 600 DEG C, the titanium material is cooled along with a furnace, and the preparation is completed. The preparation method is applied to the biological medical field.

Description

technical field [0001] The invention relates to a preparation method for forming a secondary porous active surface structure on the surface of a titanium material by using a mixed alkali. Background technique [0002] Titanium and titanium alloys are widely used in the biomedical field to manufacture hard tissue repair materials such as artificial joints, bone nails, and dental implants because of their good biocompatibility, corrosion resistance, and comprehensive mechanical properties. In practical applications, the titanium dioxide film formed by titanium and titanium alloys in the natural state has a loose surface structure, is not dense, and has weaknesses such as ion precipitation, which is not conducive to the fusion and combination with bone tissue. Due to the precipitation of ions, the implant and The bonding strength of bone tissue is low, which can easily cause problems such as the falling off of the implant at the bonding surface and the difficulty in healing the...

Claims

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Application Information

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IPC IPC(8): C23F1/26C23F1/38B24B1/00B24C1/10
Inventor 魏大庆杜青周睿冯唯周玉
Owner HARBIN INST OF TECH
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