Preparation method for antibacterial material

A technology of antibacterial materials and materials, applied in the fields of botanical equipment and methods, biocides, plant growth regulators, etc., can solve the problems of unstable dispersion and uneven dispersion of nano-copper, and achieve improved dispersion stability and dispersion stability. The effect of improving performance and promoting nano-scale

Inactive Publication Date: 2021-05-25
西安庄信新材料科技有限公司
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  • Application Information

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Problems solved by technology

[0005] The present invention solves the technical problems of unbalanced dispersion and unstable dispersion of nano-copper in the existing Ti-3Cu alloy by providing a preparation method of antibacterial material

Method used

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  • Preparation method for antibacterial material

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preparation example Construction

[0023] like figure 1 As shown, the present embodiment provides a preparation method of a bacteriostatic material, comprising the following steps:

[0024] Step 1: After mixing the titanium powder and the copper powder in a mass ratio of 97:3, add a grinding aid of 1.2-2 times the total weight of the copper powder and the titanium powder, and stir and mix under vacuum conditions. The grinding aid is prepared by mixing acetone, ethanol and ethylene glycol in a volume ratio of 7-8:3-5:1.

[0025] It should be noted that due to the extremely strong combining ability of titanium at high temperature, not only can it combine with oxygen, carbon, nitrogen and many other elements to form titanium compounds, but also the melting temperature of titanium compounds is inconsistent with the vacuum melting temperature. However, the titanium compound and the smelting mixture are smelted in the same state, and the vacuum smelting time is mainly based on the smelting setting of pure titanium a...

Embodiment 1

[0036] Present embodiment 1 provides a kind of preparation method of antibacterial material, comprises the following steps:

[0037] Step 1: After mixing titanium powder and copper powder in a mass ratio of 97:3, add a grinding aid that is 1.2 times the total weight of the copper powder and the titanium powder, and stir and mix evenly under vacuum conditions, wherein the The grinding aid is prepared by mixing acetone, ethanol and ethylene glycol in a volume ratio of 7:3:1. Among them, both the copper powder and the titanium powder are powders with a purity ≥99.99%.

[0038] Step 2: Add the mixed material of step 1 into the high-energy ball mill, under the condition of argon protection and the speed of the ball mill at 1500 rpm, according to the ball-to-material mass ratio of 6:5, the copper powder, copper powder and auxiliary The mixed material of the grinding agent was ball milled for 4 hours to obtain ball mill powder. Among them, the ball mill is composed of grinding ball...

Embodiment 2

[0042] Present embodiment 2 provides a kind of preparation method of antibacterial material, comprises the following steps:

[0043] Step 1: After mixing titanium powder and copper powder in a mass ratio of 97:3, add a grinding aid that is 1.5 times the total weight of the copper powder and the titanium powder, and stir and mix under vacuum conditions, wherein the The grinding aid is prepared by mixing acetone, ethanol and ethylene glycol in a volume ratio of 7:3:1. Among them, both the copper powder and the titanium powder are powders with a purity ≥99.99%.

[0044] Step 2: Add the mixed material of step 1 into the high-energy ball mill, under the condition of argon protection and the speed of the ball mill at 1500 rpm, according to the ball-to-material mass ratio of 6:5, the copper powder, copper powder and auxiliary The mixed material of the grinding agent was ball milled for 4 hours to obtain ball mill powder. Among them, the ball mill is composed of grinding balls with ...

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Abstract

The invention discloses a preparation method for an antibacterial material, and relates to the field of titanium alloy material preparation. The preparation method comprises the steps that titanium powder and copper powder are mixed according to the mass ratio of 97: 3, then a grinding aid with the weight of 1.2-2 times of the total weight of the titanium powder and the copper powder is added, and vacuum stirring and uniform mixing are carried out; a uniformly mixed material is added into a high-energy ball mill, and ball milling is carried out on the uniformly mixed material for 4 hours according to the mass ratio of balls to the material of 6: 5 under the conditions of inert gas protection and the rotating speed of 1500 revolutions per minute; in a vacuum sintering furnace, ball-milled powder is subjected to hot pressure sintering treatment for 3 hours, wherein the temperature is 750-850 DEG C, and the pressure is 20-30 MPa; and cooling is carried out to room temperature, and cutting is carried out to obtain the antibacterial material. According to the preparation method for the antibacterial material, the surfaces of the titanium powder and the copper powder can be modified, the "agglomeration" phenomenon of the titanium powder and the copper powder is avoided, grain structures of the titanium powder and the copper powder can be changed, nanocrystallization of the copper powder and the titanium powder is facilitated, and therefore the copper powder is uniformly and stably dispersed on the surface of the titanium powder, and the stability of the antibacterial performance of Ti-3Cu alloy is improved.

Description

technical field [0001] The present application relates to the field of preparation of titanium alloy materials, in particular to a preparation method of a bacteriostatic material. Background technique [0002] Bacterial infection is a serious threat to human health. Currently, antibiotics are mainly used to prevent and control bacterial infections. However, the overuse of antibiotics can cause bacteria to develop drug resistance, and also cause side effects such as allergic and / or toxic reactions. Therefore, it is inevitable to reduce the application of antibiotics. Titanium and titanium alloys have the characteristics of low density, high specific strength, low elastic modulus, excellent corrosion resistance and biocompatibility, and after antibacterial heat treatment, titanium alloys can be highly effective and long-lasting against Staphylococcus aureus and Escherichia coli. of antibacterial properties. Therefore, designing and preparing antibacterial titanium alloys with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/04C22C14/00A01N59/16A01N59/20
CPCA01N59/16A01N59/20C22C1/0458C22C14/00
Inventor 侯军涛鲁毅郭磊罗威
Owner 西安庄信新材料科技有限公司
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