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

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

Active Publication Date: 2018-06-26
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 titanium surface and preparation method thereof
  • Zinc titanate-titanium oxide composite antibacterial coating on titanium surface and preparation method thereof
  • Zinc titanate-titanium oxide composite antibacterial coating on titanium surface and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Will contain 0.2M (CH 3 COO) 2 Zn and 0.02M β-C 3 h 7 Na2 o 6 The aqueous solution of P was mixed at a volume ratio of 10:1 as the electrolyte. Using metal titanium sheet as the anode, stainless steel as the cathode, the distance between the cathode and anode plates is 8-10cm, using a DC pulse power supply, under the conditions of positive voltage 400 volts, negative voltage 100 volts, frequency 100 Hz, and duty cycle 26%. The micro-arc oxidation treatment is performed on the titanium sheet 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-sectional microscopic morphology refer to figure 1 with figure 2 . from figure 1 It can be seen from the figure that the coating has a microporous structure in morphology and the pore size is 1-5 microns; figure 2 It can be seen that...

Embodiment 2

[0037] Will contain 0.2M (CH 3 COO) 2 Zn and 0.02M β-C 3 h 7 Na 2 o 6 The aqueous solution of P was mixed at a volume ratio of 10:1 as the electrolyte. The metal titanium sheet is used as the anode, the stainless steel is used as the cathode, and the distance between the cathode and anode plates is 8 to 10 cm. Using a DC pulse power supply, the positive voltage is 470 volts, the negative voltage is 100 volts, the frequency is 100 Hz, and the duty cycle is 26%. 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 and 0.02M β-C 3 h 7 Na 2 o 6 The aqueous solution of P was mixed at a volume ratio of 10:1 as the electrolyte. The metal titanium sheet is used as the anode, the stainless steel is used as the cathode, and the distance between the cathode and anode plates is 8 to 10 cm. Using a DC pulse power supply, the positive voltage is 530 volts, the negative voltage is 100 volts, the frequency is 100 Hz, and the duty cycle is 26%. The titanium sheet is subjected to micro-arc oxidation treatment for 1 minute. During the treatment, the temperature of the electrolyte is 8°C, and a porous composite coating of zinc titanate and titanium oxide is obtained. The pore size is 1-10 microns, and the coating thickness is 20-25 Micron, the bonding strength between the coating and the substrate is 27.1N. The SEM photos of its surface and cross-sectional microscopic morphology refer to image 3 with Figure 4 ; The composition of its phase refers to Fi...

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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 leading causes of implant failure. According to a survey, the bacterial infection rate of bone implants in the United States is 43% every year, and 90,000 patients will die of bacterial infection during bone grafting operations. Bacteria may adhere to the surface of bone implants before and during the operation and cause bacterial infection. Once infected, bacteria tend to aggregate 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 immunity from the host and the action of antibacterial agents Sexuality, which makes it ve...

Claims

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Application Information

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