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Degradable Zn-Ti binary biomedical material and preparation method thereof

A technology of biomedical materials and biomaterials, applied in the field of degradable Zn-Ti binary biomedical materials and their preparation

Inactive Publication Date: 2020-08-14
ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] So far, there have been no reports on the preparation of Zn-Ti binary system degradable alloys and the research on the corresponding properties, so it is proposed to use Zn-Ti binary system alloys as the next stage of degradable biomedical materials.

Method used

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  • Degradable Zn-Ti binary biomedical material and preparation method thereof
  • Degradable Zn-Ti binary biomedical material and preparation method thereof
  • Degradable Zn-Ti binary biomedical material and preparation method thereof

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Embodiment 1

[0038] like Figure 1 to Figure 4 As shown, the present invention discloses a degradable Zn-Ti binary biomedical material and its preparation method. Firstly, pure Zn ingot (99.999wt.%) and Zn-3Ti master alloy (containing 3.17wt.% Ti) are used as raw materials , and weighed according to the mass ratio in the binary Zn-0.2Ti alloy composition. Then put pure zinc into a graphite crucible and place it in a pit furnace for melting. 2 Under the protection of the atmosphere, heat to 560°C for smelting. After the pure zinc is completely melted, add the Zn-3Ti master alloy, and press the Zn-3Ti master alloy into the liquid surface to avoid the phenomenon that the master alloy cannot be melted due to floating. Adjust the temperature to 580°C. After the master alloy is fully melted, continue to stir with a graphite rod for 2 minutes. After standing for 5 minutes, carry out slag removal treatment, and lower the pouring temperature to 540°C. Finally, it is poured into a steel mold prehe...

Embodiment 2

[0051] Firstly, pure Zn ingot (99.999wt.%) and Zn-3Ti master alloy (containing 3.17wt.% Ti) were used as raw materials, and weighed according to the mass ratio of the binary Zn-0.05Ti alloy composition. Then put pure zinc into a graphite crucible and place it in a pit furnace for melting. 2 Heating to 560°C under atmosphere protection for smelting, after the pure zinc is completely melted, add Zn-3Ti master alloy, and press the Zn-3Ti master alloy into the liquid surface to avoid the phenomenon that the master alloy cannot be melted due to floating up; adjust the temperature to 580°C, after the master alloy is fully melted, continue to stir with a graphite rod for 2 minutes, after standing for 5 minutes, carry out slag removal treatment, and lower the pouring temperature to 540°C. Finally, it is poured into a steel mold preheated to 250°C, and the metal ingot is obtained after solidification. The metal ingot is kept at 340°C for 10 hours for homogenization treatment to improve...

Embodiment 3

[0054] First, pure Zn ingot (99.999wt.%) and Zn-3Ti master alloy (containing 3.17wt.% Ti) were used as raw materials, and weighed according to the mass ratio of the binary Zn-1Ti alloy composition, and then pure zinc was put into Graphite crucible and placed in a pit furnace for melting, in Ar 2 Under the protection of the atmosphere, heat to 580°C for smelting. After the pure zinc is completely melted, add the Zn-3Ti master alloy, and press the Zn-3Ti master alloy into the liquid surface to avoid the phenomenon that the master alloy cannot be melted due to floating. Adjust the temperature to 560°C. After the master alloy is fully melted, continue to stir with a graphite rod for 3 minutes. After standing for 5 minutes, carry out slag removal treatment, and lower the pouring temperature to 530°C. Finally, pour into a preheated to 250°C In the steel mold, metal ingots were obtained after solidification; the metal ingots were homogenized at 340°C for 10 hours to improve the segre...

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Abstract

The invention relates to a degradable Zn-Ti binary biomedical material and a preparation method thereof. The Zn-Ti binary biomedical material comprises the following components in percentages by weight: 0.01-2.5wt% of Ti and the balance of Zn, and the degradable Zn-Ti binary biomedical material and the preparation method of the degradable Zn-Ti binary biomedical material have the advantages of higher mechanical properties and more excellent cytocompatibility.

Description

technical field [0001] The invention relates to the technical field of biomedical metals, in particular to a degradable Zn-Ti binary biomedical material and a preparation method thereof. Background technique [0002] Degradable metal implant materials have good biocompatibility and biodegradability, and can be gradually degraded by body fluids in the body, and the released degradation products bring appropriate host responses to the body. Therefore, it has been widely used in clinical medicine, such as bone fixation parts, bone replacement parts, vascular stents, etc. At present, there are mainly three types of degradable metals: magnesium-based, iron-based and zinc-based. The application of magnesium-based and iron-based biomaterials in biomedicine has entered the stage of clinical use, especially the application of degradable magnesium-based biomaterials in implants such as bone fixation and scaffolds. At present, DREAMS 2G magnesium alloy stents are sold on the market, ...

Claims

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Application Information

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IPC IPC(8): A61L31/02A61L31/14C22C18/00C22C1/02C22C1/03C22F1/16
CPCA61L31/022A61L31/14C22C18/00C22C1/02C22C1/03C22F1/165
Inventor 童先林继兴王坤
Owner ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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