Preparation method and application of porous titanium alloy material modified by plasma spraying composite coating

A composite coating, plasma technology, applied in the coating, metal material coating process, additive manufacturing and other directions, can solve the problems of high cytotoxicity and inconvenience for patients, and achieve the goal of improving biocompatibility and enhancing the ability of the surface to promote osteogenesis. Effect

Pending Publication Date: 2022-02-25
刘宏伟
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Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method and application of a porous titanium alloy material modified by plasma spraying composite coating, so as to solve the problem that the cytotoxicity of the metal bone substitute material in the prior art is easy to cause inconvenience to the patient after being implanted into the human body question

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  • Preparation method and application of porous titanium alloy material modified by plasma spraying composite coating
  • Preparation method and application of porous titanium alloy material modified by plasma spraying composite coating
  • Preparation method and application of porous titanium alloy material modified by plasma spraying composite coating

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Embodiment Construction

[0025] The following is further described in detail by specific embodiments:

[0026] A preparation method of a porous titanium alloy material modified by a plasma sprayed composite coating, comprising the following steps:

[0027] 1. Pretreatment of titanium alloy material: sand blasting and roughening the titanium alloy sheet for standby (the sand used is 46 mesh brown corundum, Al 2 O 3 );

[0028] 2. Ball milling and granulation: four groups of composite powders were prepared according to the mass ratio of zinc oxide to 5% (group A), 10% (group B), 15% (group C), and 20% (group D). Put 50g of compound powder, 75g of ball mill beads, and dissolve in an appropriate amount of anhydrous ethanol. Large, medium and small balls are milled for 12min, and the speed is 380r / min. Ball milled twice, filtered through a 200-mesh sieve, and dried for later use.

[0029] 3. Preparation of coating by atmospheric plasma spraying: The pretreated titanium sheet is clamped on a metal cyli...

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Abstract

The invention belongs to the technical field of material preparation, and particularly discloses a preparation method and application of a porous titanium alloy material modified by a plasma spraying composite coating. The preparation method comprises the following steps that (1) pretreating the titanium alloy material: specifically, subjecting a titanium alloy sheet to sand blasting roughening treatment for standby application; (2) carrying out ball milling and granulation; (3) preparing a coating by atmospheric plasma spraying: clamping the pretreated titanium sheet on a metal cylinder, and spraying a composite powder in the step (2) onto the titanium sheet by using a plasma spraying method; and after spraying, naturally cooling to room temperature, sequentially carrying out ultrasonic cleaning on the coating by using absolute ethyl alcohol and deionized water, and sterilizing by using a high-pressure steam sterilization method for later use. The method is mainly used for preparing the porous titanium alloy material, and the problem that in the prior art, after a metal bone substitute material is implanted into a human body, cytotoxicity is large, and inconvenience is easily caused to a patient is solved.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and specifically discloses a preparation method and application of a porous titanium alloy material modified by a plasma spraying composite coating. Background technique [0002] The treatment and repair of large-segment bone defects caused by infection, trauma, bone tumor or bone and joint disease has always been a clinical challenge. Traditional autologous bone, allogeneic bone, degradable artificial bone or tissue-engineered bone cannot meet the mechanical requirements of bone defect repair in large segments and load-bearing areas due to limitations in bone volume and mechanical strength. [0003] Metal bone substitute materials, such as tantalum metal and medical titanium alloy, have satisfactory mechanical strength, but their elastic modulus is much higher than that of human bone, which is prone to stress shielding and the risk of later loosening after implantation. Tantalum me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/06A61L27/22A61L27/30A61L27/32A61L27/54A61L27/56B22F10/28B22F10/62B33Y40/20C23C4/04C23C4/134
CPCC23C4/134C23C4/04B22F10/62B22F10/28B33Y40/20A61L27/56A61L27/06A61L27/32A61L27/306A61L27/54A61L27/227A61L2430/02A61L2300/404A61L2300/252Y02P10/25
Inventor 刘宏伟蒋俊锋顾勇张文徐南伟王庆张润泽王佳峰邵龙辉
Owner 刘宏伟
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