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Method for constructing blade net nanostructure on surface of aluminum alloy

A technology of aluminum alloy surface and nanostructure, applied in metal material coating process, coating, etc., to achieve good biological safety and biocompatibility, good bactericidal performance, and simple and convenient preparation method

Active Publication Date: 2019-09-03
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the application of traditional antibacterial coatings has certain limitations.

Method used

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  • Method for constructing blade net nanostructure on surface of aluminum alloy
  • Method for constructing blade net nanostructure on surface of aluminum alloy
  • Method for constructing blade net nanostructure on surface of aluminum alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A method for constructing a blade net nanostructure on the surface of an aluminum alloy, taking the aluminum alloy 5A06 as an example, comprising the following steps:

[0034] Step 1: Cut the aluminum alloy plate into a size of 5cm×5cm, polish it with 1200-grit sandpaper, then immerse it in deionized water and acetone for 10 minutes for ultrasonic cleaning, and finally dry it at 50°C for 30 minutes;

[0035] Step 2: Add 50mL of HMTA aqueous solution (50mmol / L) to 50mL of zinc nitrate aqueous solution with a concentration of 50mmol / L, mix well and pour into the reaction kettle;

[0036] Step 3: Add Na in the mixed solution obtained in step 2 2 CO 3 and NH 3 Deionized aqueous solution, Na in the final solution 2 CO 3 and NH 3 The concentration is 0.5mmol·L -1 ;

[0037] Step 4: Preheat the reaction kettle in an oven at 50°C for 15 minutes, put the aluminum alloy plate prepared in step 1 in the reaction kettle, and conduct a hydrothermal reaction at 50°C for 4 hours...

Embodiment 2

[0041] A method for constructing a blade net nanostructure on the surface of an aluminum alloy, taking the aluminum alloy 5A06 as an example, comprising the following steps:

[0042] Step 1: Cut the aluminum alloy plate into a size of 5cm×5cm, polish it with 1200-grit sandpaper, then immerse it in deionized water and acetone for 10 minutes for ultrasonic cleaning, and finally dry it at 50°C for 30 minutes;

[0043] Step 2: Add 100mL of HMTA aqueous solution (70mmol / L) to 100mL of zinc nitrate aqueous solution with a concentration of 70mmol / L, mix well and pour into the reaction kettle;

[0044] Step 3: Add Na in the mixed solution obtained in step 2 2 CO 3 and NH 3 Deionized aqueous solution, Na in the final solution 2 CO 3 and NH 3 The concentration is 1mmol·L -1 ;

[0045] Step 4: Preheat the reaction kettle in an oven at 70°C for 15 minutes, put the aluminum alloy plate prepared in step 1 in the reaction kettle, and conduct a hydrothermal reaction at 70°C for 4 hours; ...

Embodiment 3

[0049] A method for constructing a blade net nanostructure on the surface of an aluminum alloy, taking the aluminum alloy 5A06 as an example, comprising the following steps:

[0050] Step 1: Cut the aluminum alloy plate into a size of 5cm×5cm, polish it with 1200-grit sandpaper, then immerse it in deionized water and acetone for 10 minutes for ultrasonic cleaning, and finally dry it at 50°C for 30 minutes;

[0051] Step 2: Add 100 mL of HMTA aqueous solution (200 mmol / L) to 100 mL of zinc nitrate aqueous solution with a concentration of 200 mmol / L, mix well and pour into the reaction kettle;

[0052] Step 3: Add Na in the mixed solution obtained in step 2 2 CO 3 and NH 3 Deionized aqueous solution, Na in the final solution 2 CO 3 and NH 3 The concentration is 2mmol·L -1 ;

[0053] Step 4: Preheat the reaction kettle in an oven at 80°C for 15 minutes, put the aluminum alloy plate prepared in step 1 in the reaction kettle, and conduct a hydrothermal reaction at 80°C for 6...

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Abstract

The invention discloses a method for constructing a blade net nanostructure on the surface of an aluminum alloy. The method comprises the following steps that 1, a hexamethylenetetramine water solution with the volume and the concentration being equal is added into a zinc nitrate water solution with the concentration being 10-500 mmol / L, after the mixture is fully mixed, and a mixed solution A isformed; 2, one or a mixed solution of a Na2CO3 solution and an NH3 aqueous solution is added into the mixed solution A, and a hydrothermal growth solution is obtained; 3, a pretreated aluminum alloy substrate plate is immersed into the hydrothermal growth solution, and reaction is conducted at the temperature of 50-90 DEG C; and 4, the aluminum alloy substrate plate is immersed in an ethyl acetatesolution of perfluorodecyltrimethoxysilane to react, and drying is conducted at the temperature of 90 DEG C to obtain the aluminum alloy plate with the blade net nanostructure. The blade net nanostructure prepared by the preparation method has good bactericidal performance, 99.9% of bacteria can be killed within 10 minutes in contact with a bacterial liquid, insects can be effectively prevented from climbing, insect pathogenic bacteria propagation is prevented, the grid regularity is high, the surface distribution is uniform, and the batch production is easy to be realized.

Description

technical field [0001] The invention relates to a method for constructing a nanostructure, in particular to a method for constructing a blade mesh nanostructure on the surface of an aluminum alloy. Background technique [0002] Aluminum alloy is widely used in the fields of production, scientific research and life, and the surface is extremely susceptible to microbial contamination such as bacteria; the adhesion and adhesion behavior of bacteria on the surface of the material will greatly affect the surface hygiene quality, and when the number of bacteria is high, it may threaten human health , so the control of microorganisms on the surface of materials is necessary and urgent. Usually, the microbiological control method on the surface of the aluminum alloy material is to apply an antibacterial material to the surface to form an antibacterial coating, and the antibacterial coating is obtained by adding an antibacterial agent to the coating. Antibacterial agents for coating...

Claims

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Application Information

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IPC IPC(8): C23C26/00
CPCC23C26/00
Inventor 周祚万谢远李金阳王立有谢雪冬补大琴姜曼孟凡彬王泽永
Owner SOUTHWEST JIAOTONG UNIV
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