Method of preparing biology activity composite thin film on surface of titanium alloy

A bioactive, composite film technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve the problem of less research on surface biological protein adhesion, achieve excellent tribological properties and biological activity, excellent Tribological properties, the effect of simple and easy methods

Active Publication Date: 2013-06-19
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] At present, the research on the surface treatment of titanium alloys mainly includes physical treatment (sandblasting, ion implantation, etc.), chemical treatment (acid etching, micro-arc oxidation, electrochemical deposition, alkali heat treatment, etc.), but for biological treatment, that is, surface biological protein adhesion less research

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  • Method of preparing biology activity composite thin film on surface of titanium alloy

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Embodiment 1

[0019] Take 1×1cm 2 Large and small Ti-6Al-4V slices, the structure of DLC / CPP bioactive composite film on the surface of Ti-6Al-4V slices is Ti-6Al-4V matrix / DLC layer / CPP layer, and the treatment process is carried out according to the following steps: (1) Ti- The 6Al-4V substrate was cleaned by conventional degreasing, followed by ultrasonic cleaning in acetone and ethanol solutions; (2) The Ti-6Al-4V substrate was placed in a multi-arc ion plating-magnetron sputtering composite vapor deposition vacuum system , carry out argon plasma sputtering cleaning, the flow rate of argon gas is 500sccm, the bias voltage is 1.3KV, the target current is 12A, and the processing time is 15min; The gas is argon, the flow rate is 70 sccm, the bias voltage is 800V, and the processing time is 5-10 minutes; (3) the multi-arc ion plating deposits DLC, the working gas is methane, the flow rate is 200 sccm, the bias voltage is 800V, the duty ratio is 80%, and the processing time is The time is 4...

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Abstract

The invention discloses a method of preparing biology activity composite thin film on surface of titanium alloy. Specifically, the titanium alloy which is processed before the convention is placed in a multi-sphere ion plating-magnetic control sputtering composite gas phase sedimentation vacuum system. A data link control (DLC) thin film with Ti as a transition layer is sedimentated. The composite thin film is composed of a titanium alloy base body, the DCL thin film and a casein phosphoric acid peptide activity egg white surface layer in sequence. A series of excellent qualities of the titanium alloy as the base body material are maintained by the thin film. The biology activity and the tribology performance are improved.

Description

technical field [0001] The invention relates to a method for preparing a biologically active composite film on the surface of a titanium alloy, specifically, a gradient multilayer diamond-like and casein phosphopeptide bioactive composite film is obtained on the surface of a titanium alloy by using physical vapor deposition technology and a chemical method of multi-step assembly . Background technique [0002] Titanium and titanium alloys have attracted more and more attention from medical researchers due to their good biocompatibility, low density, and low elastic modulus (80-100GPa). Therefore, titanium and titanium alloy artificial joints (such as hip joints, knee joints, elbow joints, ankle joints, etc.) and restorations have been widely used in human bone tissue repair and orthopedic surgery. Ti-6Al-4V, which is widely used at present, has the characteristics of high strength and good ductility. However, its wear resistance and biological activity are poor. Even if it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/32C23C14/35C23C14/16C23C14/06C23C14/58
Inventor 张俊彦卜银忠王琳张斌
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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