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

A biologically active and composite thin film technology, which is applied in metal material coating process, ion implantation plating, coating, etc., can solve the problems of surface biological protein adhesion, etc., and achieve excellent tribological properties and biological activity, excellent Tribological performance, the effect of process stability

Active Publication Date: 2015-06-17
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 Size Ti-6Al-4V sheet, Ti-6Al-4V sheet surface DLC / CPP bioactive composite film structure is Ti-6Al-4V matrix / DLC layer / CPP layer, the treatment process is carried out according to the following steps: (1) Ti- The 6Al-4V substrate is subjected to conventional degreasing cleaning, and then ultrasonic cleaning is carried out in acetone and ethanol solution in turn; (2) Ti-6Al-4V substrate is placed in a multi-arc ion plating-magnetron sputtering composite vapor deposition vacuum system , Carry out argon plasma sputtering cleaning, argon gas flow rate is 500sccm, bias voltage is 1.3KV, target current is 12A, processing time is 15min; (2) Multi-arc ion plating Ti transition layer, metal Ti target as cathode, working The gas is argon, the flow is 70sccm, the bias voltage is 800V, and the processing time is 5-10min; (3) Multi-arc ion plating deposition DLC, the working gas is methane, the flow is 200sccm, the bias voltage is 800V, and the duty cycle is 80%. Time is...

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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, in particular to obtain a gradient multilayer diamond-like carbon and casein phosphopeptide biologically active composite film on the surface of a titanium alloy by using physical vapor deposition technology and a multi-step assembly chemical method . Background technique [0002] Titanium and titanium alloys have attracted more and more attention from medical researchers for 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. But 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 Patents(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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