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Preparation method of quick in-situ construction of apatite nanorod with certain orientation on surface of titanium micro-arc anti-oxidization coating layer

A technology of micro-arc oxidation and apatite, which is applied in the direction of coating, nanotechnology, surface reaction electrolytic coating, etc., can solve the problems of large loss of elements, no orientation, disorder, etc., to achieve extended application and improve binding ability , reducing the effect of elapsed

Active Publication Date: 2017-08-11
HARBIN INST OF TECH
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  • Abstract
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Problems solved by technology

[0003] The present invention solves the problems of long time in the existing hydrothermal treatment process, excessive loss of elements, and at the same time, the amount of apatite formed on the surface is small, disorderly, and has no orientation, and provides a rapid in-situ micro-arc oxidation of titanium Preparation method of coating surface to construct apatite nanorods with certain orientation

Method used

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  • Preparation method of quick in-situ construction of apatite nanorod with certain orientation on surface of titanium micro-arc anti-oxidization coating layer
  • Preparation method of quick in-situ construction of apatite nanorod with certain orientation on surface of titanium micro-arc anti-oxidization coating layer
  • Preparation method of quick in-situ construction of apatite nanorod with certain orientation on surface of titanium micro-arc anti-oxidization coating layer

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specific Embodiment approach 1

[0021] Specific Embodiment 1: A method for rapidly in situ constructing apatite nanorods with a certain orientation on the surface of titanium micro-arc oxidation coating described in this embodiment is specifically carried out according to the following steps:

[0022] 1. Pretreatment of titanium materials: After grinding and polishing the surface of titanium materials with 200#, 400# and 1000# metallographic sandpaper in sequence, wash them with deionized water and dry them at a temperature of 20°C to 80°C 0.5h~5h, get the titanium material after pretreatment;

[0023] 2. Micro-arc oxidation treatment: place the pretreated titanium material in a stainless steel electrolytic cell containing the electrolyte of biologically active components, use the pretreated titanium material as the anode, and the stainless steel plate as the cathode for micro-arc oxidation. DC voltage, under the conditions of voltage 200V-500V, pulse frequency 200Hz-1000Hz, duty cycle 4%-30%, and electrolyt...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment is different from Embodiment 1 in that the titanium material described in step 1 is titanium or titanium alloy. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the titanium material is TA2, TA3, TA4, TC4 or Ti2448. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of quick in-situ construction of an apatite nanorod with certain orientation on the surface of a titanium micro-arc anti-oxidization coating layer, and relates to a preparation method of constructing the apatite nanorod on the surface of the titanium micro-arc anti-oxidization coating layer. The invention aims to solve the problems of long time and large loss quantity of elements in existing hydro-thermal treatment process, small amount of apatite formed on the surface, disorder of the apatite and no orientation. The method comprises the following steps: pretreatment of a titanium material; 2, micro-arc oxidization treatment; 3, microwave hydro-thermal treatment, thus completing the quick in-situ construction of the apatite nanorod with certain orientation on the surface of the titanium micro-arc anti-oxidization coating layer. The invention discloses the preparation method of the quick in-situ construction of the apatite nanorod with certain orientation on the surface of the titanium micro-arc anti-oxidization coating layer.

Description

technical field [0001] The invention relates to a preparation method for constructing apatite nanorods on the surface of a titanium micro-arc oxidation coating. Background technique [0002] Titanium and its alloys are widely used medical implant materials, but they are inert in practical application and do not have osteoinductive ability. Micro-arc oxidation technology is a common method for surface modification of titanium implants. By adjusting the composition of the electrolyte, elements such as calcium, phosphorus, silicon, sodium and other active ingredients are introduced into the micro-arc oxidation coating. The active elements in the coating are formed as The presence of the amorphous form is followed by hydrothermal treatment, whereby the active ingredient assumes a crystalline state within the coating. However, in the current conventional hydrothermal treatment process, the treatment time is long, which leads to the loss of a large amount of elements in the coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/26B82Y40/00
CPCB82Y40/00C25D11/26
Inventor 魏大庆杜青刘尚李翾周玉王亚明贾德昌
Owner HARBIN INST OF TECH
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