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Preparation method of graphene film of titanium or titanium alloy surface

A technology of graphene film and titanium alloy, which is applied in metal material coating process, gaseous chemical plating, coating, etc., can solve the problem that the uniformity is difficult to be guaranteed, so as to improve biocompatibility, uniformity guarantee, highly operable effect

Inactive Publication Date: 2015-11-18
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The graphene film is obtained by impregnation, and the uniformity of the film is difficult to guarantee

Method used

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  • Preparation method of graphene film of titanium or titanium alloy surface
  • Preparation method of graphene film of titanium or titanium alloy surface
  • Preparation method of graphene film of titanium or titanium alloy surface

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Embodiment 1

[0054] The present embodiment provides a kind of preparation method of titanium or titanium alloy surface graphene thin film, and this method comprises the following steps:

[0055] Step 1, growing a graphene film on a copper substrate, the specific steps are:

[0056] Step 1.1, trim the copper sheet with a thickness of 0.25μm to 5×5cm 2 Copper sheets of different sizes were ultrasonically washed with acetone, absolute ethanol and deionized water for 10 minutes, and then dried in an oven at 60°C;

[0057] Step 1.2, the copper sheet after ultrasonic cleaning is put into the quartz tube of vacuum furnace reaction furnace, and temperature keeps constant, after connecting the ventilation pipe of vacuum high-temperature reaction furnace, feed argon earlier, regulate the flow of argon to be 200sccm (1sccm= 1ml / min) continue to add argon for 2min and start heating, the heating rate is 10℃ / min;

[0058] Step 1.3, adjust the central temperature of the vacuum furnace to 1000°C, add hy...

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Abstract

The invention provides a preparation method of a graphene film of a titanium or titanium alloy surface. The method comprises steps as follows: a graphene film grows on a metal base, and a graphene film / metal base material is obtained; the graphene film / metal base material is covered with a layer of plastic film, and a plastic film / graphene film / metal base material is obtained; then the plastic film / graphene film / metal base material is placed in a metal dissolution medium for dissolution of the metal base, and a plastic film / graphene film material is obtained; after the plastic film / graphene film material is cleaned up, the surface, where the graphene film is located, of the plastic film / graphene film material is attached to the titanium or titanium alloy surface, the material is naturally dried for 12 h and then placed for drying, and a plastic film / graphene film / titanium or titanium alloy material is obtained. Thus, a titanium or titanium alloy implant coated with graphene is more suitable to be used as a medical implant material than a titanium or titanium alloy implant which is not coated with the graphene.

Description

technical field [0001] The invention belongs to the field of medical materials and relates to titanium or titanium alloys, in particular to a method for preparing a graphene film on the surface of titanium or titanium alloys. Background technique [0002] Biomedical metal materials have been used in human implants for nearly 400 years. At the beginning, people used gold, silver, copper, iron and iron-based alloys to fix fractures. During World War II, as the demand for clinical treatment expanded, a large number of human implants with strong corrosion resistance and low tissue response, such as stainless steel, cobalt-based alloys, and tantalum, were used. With the development of the metal industry, titanium and its alloys are widely promoted because of their light weight and elastic modulus close to that of bone. Studies have proved that titanium and titanium alloy stents have the advantages of high strength, smooth surface, wear resistance, corrosion resistance, and perma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04C23C16/26
Inventor 韩一生李克文毕龙王春辉闫金洪张振宇第五维龙
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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