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Zinc titanate-titanium oxide composite antibacterial coating on surface of titanium and preparation method of zinc titanate-titanium oxide composite antibacterial coating

A compound antibacterial and zinc titanate technology, applied in the direction of surface reaction electrolytic coatings, coatings, electrolytic coatings, etc., can solve the problems that the antibacterial effect of zinc titanate and related biological properties have not been reported, and achieve rapid induction of bone tissue growth , good stability and easy access to raw materials

Active Publication Date: 2016-06-08
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing research, there is no report on the antibacterial effect and related biological properties of zinc titanate.

Method used

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  • Zinc titanate-titanium oxide composite antibacterial coating on surface of titanium and preparation method of zinc titanate-titanium oxide composite antibacterial coating
  • Zinc titanate-titanium oxide composite antibacterial coating on surface of titanium and preparation method of zinc titanate-titanium oxide composite antibacterial coating
  • Zinc titanate-titanium oxide composite antibacterial coating on surface of titanium and preparation method of zinc titanate-titanium oxide composite antibacterial coating

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] will contain 0.2M (CH 3 COO) 2 Zn with 0.02M β-C 3 H 7 Na2 O 6 The aqueous solution of P was mixed in a volume ratio of 10:1 to serve as the electrolyte. The metal titanium sheet is used as the anode, the stainless steel is used as the cathode, the distance between the cathode and anode plates is 8-10cm, and the DC pulse power supply is used. The titanium sheet is subjected to micro-arc oxidation treatment for 1 minute. During the treatment, the temperature of the electrolyte is 10° C. to obtain a porous composite coating of zinc titanate and titanium oxide, and the thickness of the coating is 3-5 microns. The SEM photos of its surface and cross-section micro-morphology refer to figure 1 and figure 2 . from figure 1 It can be seen that the coating has a microporous structure in morphology and the pore size is 1 to 5 microns; figure 2 It can be seen that the thickness of the coating is about 6 microns, and the coating is closely combined with the substrate wit...

Embodiment 2

[0037] will contain 0.2M (CH 3 COO) 2 Zn with 0.02M β-C 3 H 7 Na 2 O 6 The aqueous solution of P was mixed in a volume ratio of 10:1 to serve as the electrolyte. The metal titanium sheet is used as the anode, the stainless steel is used as the cathode, the distance between the cathode and anode plates is 8-10cm, and the DC pulse power supply is used. The titanium sheet is subjected to micro-arc oxidation treatment for 1 minute. During the treatment, the temperature of the electrolyte is 15° C. to obtain a porous composite coating of zinc titanate and titanium oxide, and the thickness of the coating is 10-15 microns.

Embodiment 3

[0039] will contain 0.2M (CH 3 COO) 2 Zn with 0.02M β-C 3 H 7 Na 2 O 6 The aqueous solution of P was mixed in a volume ratio of 10:1 to serve as the electrolyte. The metal titanium sheet is used as the anode, the stainless steel is used as the cathode, the distance between the cathode and anode plates is 8-10cm, and the DC pulse power supply is used. The titanium sheet is subjected to micro-arc oxidation treatment for 1 minute. During the treatment, the temperature of the electrolyte is 8 °C to obtain a porous composite coating of zinc titanate and titanium oxide, with a pore size of 1-10 microns and a coating thickness of 20-25 Micron, the bonding strength of the coating and the substrate is 27.1N. The SEM photos of its surface and cross-section micro-morphology refer to image 3 and Figure 4 ; its phase composition see Figure 5 , it can be seen from the figure that the coating is composed of two main phases, rutile and zinc titanate, and a trace amount of anatase;...

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Abstract

The invention discloses a zinc titanate-titanium oxide composite antibacterial coating on the surface of titanium and a preparation method of the zinc titanate-titanium oxide composite antibacterial coating and belongs to the technical field of titanium-based surface treatment. The preparation method comprises the steps that a combination solution of a (CH3COO)2Zn solution and a beta-C3H7Na2O6P solution serves as an electrolyte; and a metallic titanium sheet serves as the anode, stainless steel serves as the cathode, the metallic titanium sheet and the stainless steel are placed into the electrolyte, the metallic titanium sheet is treated through a micro-arc oxidation process, and the zinc titanate-titanium oxide composite antibacterial coating is prepared on the surface of the titanium sheet. According to the preparation method, raw materials are easy to obtained, operation is easy, control is easy, and the stability is good; and the antibacterial coating prepared through the preparation method has high biological activity as well as antibacterial property, no discontinuous interface exists between the antibacterial coating and a basal body, and high combination strength is achieved.

Description

technical field [0001] The invention belongs to the technical field of titanium-based surface treatment, and in particular relates to a zinc titanate-titanium oxide composite antibacterial coating on a titanium surface and a preparation method thereof. Background technique [0002] Studies have shown that bacterial infection is one of the main causes of implant failure. According to a survey, the annual bacterial infection rate of bone implants in the United States is 43%, and 90,000 patients will die of bacterial infection during bone transplantation. Bacteria may adhere to the surface of bone implants before and during surgery and cause bacterial infection. Once infected, bacteria tend to agglomerate on the surface of the implant to form a biofilm, thereby inhibiting the integration of the implant and bone; the bacteria living in the biofilm show strong resistance to the host's immunity and antibacterial agents Sex, which makes dealing with such bacterial infections very...

Claims

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Application Information

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IPC IPC(8): C25D11/26C25D9/06A61L27/30A61L27/54
CPCA61L27/306A61L27/54C25D9/06C25D11/024C25D11/26A61L2430/02A61L2420/06
Inventor 憨勇叶晶王晓珊
Owner XI AN JIAOTONG UNIV
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