Preparation method of self-assembly silanization of pure titanium metal surface

A metal surface and silanization technology, which is applied in the coating process of metal materials, can solve the problems of low biological activity and no strong chemical combination, and achieve the effect of simple operation, easy promotion and stable structure

Inactive Publication Date: 2013-01-02
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of low biological activity of pure titanium materials and no strong chemical combination with surrounding tissues, the present invention provides a preparation method of self-assembled silanization on the surface

Method used

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  • Preparation method of self-assembly silanization of pure titanium metal surface
  • Preparation method of self-assembly silanization of pure titanium metal surface

Examples

Experimental program
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Example Embodiment

[0024] Example 1

[0025] Step 1: Material cleaning. Use a square sheet with a thickness of 0.1 mm and pure titanium with a purity of 99.9% as the substrate, ultrasonically clean with absolute ethanol, acetone and deionized water for 10 minutes, wipe with filter paper, and air dry for use;

[0026] Step 2: Surface acid treatment. Use 1:1 volume ratio of HF and HNO 3 Polish the mixed solution for 5 min, rinse the surface with deionized water, and place it in a constant temperature drying oven at 50 ℃ for 15 min.

[0027] Step 3: Alkaline heat treatment. The pure titanium after acid treatment is placed in a plastic bottle containing 2 mol / L NaOH solution, the material is completely immersed in the NaOH solution, and placed in a constant temperature drying oven at 80 ℃ to heat it with alkali for 72 h, and then ultrasonically with deionized water Clean the surface for 10 minutes and place it in a 50 ℃ constant temperature drying oven for 15 minutes;

[0028] Step 4: Self-assembly sila...

Example Embodiment

[0030] Example 2

[0031] Step 1: Material cleaning. Use a square sheet with a thickness of 0.1 mm and pure titanium with a purity of 99.9% as the substrate, ultrasonically clean with absolute ethanol, acetone and deionized water for 10 minutes, wipe with filter paper, and air dry for use;

[0032] Step 2: Surface acid treatment. Use 1:1 volume ratio of HF and HNO 3 Polish the mixed solution for 8 min, rinse the surface with deionized water, and place it in a 50 ℃ constant temperature drying oven for 20 min.

[0033] Step 3: Alkaline heat treatment. The pure titanium after acid treatment is placed in a plastic bottle containing 6 mol / L NaOH solution, the material is completely immersed in the NaOH solution, and placed in a constant temperature drying oven at 80 ℃ to heat it with alkali for 24 h, and then ultrasonically with deionized water Clean the surface for 10 minutes and place it in a constant temperature drying oven at 50 ℃ for 20 minutes;

[0034] Step 4: Self-assembly sila...

Example Embodiment

[0035] Example 3

[0036] Step 1: Material cleaning. Use a square sheet with a thickness of 0.1 mm and pure titanium with a purity of 99.9% as the substrate, ultrasonically clean with absolute ethanol, acetone and deionized water for 10 minutes, wipe with filter paper, and air dry for use;

[0037] Step 2: Surface acid treatment. Use 1:1 volume ratio of HF and HNO 3 Polish the mixed solution for 10 minutes, rinse the surface with deionized water, and place it in a constant temperature drying oven at 50 ℃ for 15 minutes.

[0038] Step 3: Alkaline heat treatment. The pure titanium after acid treatment is placed in a plastic bottle containing 8 mol / L NaOH solution, the material is completely immersed in the NaOH solution, and placed in a constant temperature drying oven at 80 ℃ for heat preservation with alkali for 48 h, and then ultrasonicated with deionized water Clean the surface for 10 minutes and place it in a 50 ℃ constant temperature drying oven for 15 minutes;

[0039] Step 4...

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Abstract

The invention discloses a preparation method of self-assembly silanization of a pure titanium metal surface; according to the invention, various silane coupling agents are grafted on a titanium surface; various active groups, such as amino, hydroxyl, and carboxyl groups, are introduced into the pure titanium surface so as to functionalize the titanium based surface and maintain the porous structure of the substrate; the preparation method of the invention is easy to control, simple in operation, and easy to popularize; and the material is expected to be used in the preparation of in-vitro tissue engineering bone scaffolds and in-vivo materials for repairing bone defects.

Description

technical field [0001] The invention relates to surface modification of pure titanium metal, in particular to a preparation method for self-assembly silanization of pure titanium metal surface. Background technique [0002] Pure titanium and titanium alloys have good biocompatibility, physical and chemical properties, and high mechanical strength. They have been widely used in artificial joints, dental implants, bone replacement and repair materials, etc., but they also have poor biological activity and lack of osteoinductive properties. Effect, no strong chemical combination with the surrounding tissue, long healing time and other shortcomings, can not meet the clinical requirements of fast healing and high osseointegration strength, thus affecting the application of titanium and titanium alloy implants. In a certain physiological environment, medical materials are often required to have good biological activity, so as to achieve chemical bonding with bone tissue, modify th...

Claims

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Application Information

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IPC IPC(8): C23C22/02
Inventor 谭帼馨张林周蕾谭英
Owner GUANGDONG UNIV OF TECH
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