Resistance-variable ZnO corrosion-resistant film and preparation method thereof

A corrosion-resistant film and coating technology, applied in liquid chemical plating, metal material coating process, coating and other directions to achieve the effects of slowing down oxidation, reducing corrosion rate, and slowing down diffusion rate

Pending Publication Date: 2022-03-15
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, no one has used this semiconductor material with r

Method used

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  • Resistance-variable ZnO corrosion-resistant film and preparation method thereof
  • Resistance-variable ZnO corrosion-resistant film and preparation method thereof
  • Resistance-variable ZnO corrosion-resistant film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] (1) Weighing 2.195 g of two hydrazine acetate is placed in a beaker, 100 ml of ether ether is added. Stirring was carried out using a magnetic stirrer, which was observed to form a turbid fluid; then added to a moles of ethanolamine with a zinc aqueous acetate acetate, which was observed to be observed. Continue to stir 12 h. The zinc solution was stabilized at room temperature for 24 h at room temperature.

[0033] (2) The use of 304 stainless steel as a substrate. Use different models of sandpaper to be polished, polished, polished, washed with deionized water, was more than 15 minutes in alcohol, and was blown after drying.

[0034] (3) The coating film is carried out by a static spin coating method, and the rotational speed is controlled at 1000 r / min. After the spin coating, it is dried in an oven at 150 ° C for 15 min. The above operation is repeated every layer. A total of 12 floors.

[0035] (4) After the film is completed, the sample is placed ...

Example Embodiment

[0036] Example 2

[0037] (1) Weighing 6.585 g of two hydrazine acetate is placed in a beaker, and 100 ml of ether ether is added. Stirring was carried out using a magnetic stirrer, which was observed to form a turbid fluid; then added to a moles of ethanolamine with a zinc aqueous acetate acetate, which was observed to be observed. Continue to stir 12 h. It was agonized at room temperature for more than 24h to give a stable 0.3 mol / L of zinc zinc sol.

[0038] (2) The use of 304 stainless steel as a substrate. Use different types of sandpaper to be polished, polished, polished, washed with deionized water, was more than 18 minutes in alcohol, and was blown after drying.

[0039] (3) The coating film is carried out by a static spin coating method, and the rotational speed is controlled at 1500r / min. After the spin coating, it is dried in an oven at 130 ° C for 15 min. The above operation is repeated every layer. A total of 12 floors.

[0040] (4) After the film is completed, t...

Example Embodiment

[0041] Example 3

[0042] (1) Weigh 10.975 g of two hydrazine acetate is placed in a beaker, and 100 ml of ether ether is added. Stirring was carried out using a magnetic stirrer, which was observed to form a turbid fluid; then added to a moles of ethanolamine with a zinc aqueous acetate acetate, which was observed to be observed. Continue to stir 12 h. It was agonized at room temperature for more than 24h to give a stable 0.5 mol / L of zinc sol.

[0043] (2) The use of 304 stainless steel as a substrate. Use different types of sandpaper to be polished, polished, polished, washed with deionized water, was allowed to be 17min in alcohol, and then spare after drying.

[0044] (3) The coating film is carried out by a static spin coating method, and the rotational speed is controlled at 2000 r / min, and after the spin coating, it was dried in an oven at 100 ° C for 11 minutes. The above operation is repeated every layer. A total of 12 floors.

[0045] (4) After the film is completed...

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Abstract

The invention discloses a resistance-variable ZnO corrosion-resistant film and a preparation method thereof, and the preparation method comprises the following steps: firstly preparing sol of zinc oxide and magnesium-doped zinc oxide, spraying the sol on a substrate, and calcining to prepare a ZnO film and a Mg-doped ZnO resistance-variable film (MgxZn1-xO); according to the technical scheme, the diffusion speed of oxygen to the metal surface is greatly reduced by means of the oxygen adsorption and combination capacity of the resistive film, and therefore oxidation is slowed down; and the oxygen vacancy content of the film can be controlled by changing the doping concentration of Mg, so that the corrosion-resistant film with different resistance values can be obtained.

Description

technical field [0001] The invention relates to a preparation method of a resistive anti-corrosion protective film, in particular to a ZnO film containing oxygen vacancy defects, and the resistance value of the film can be changed by controlling the preparation conditions. Background technique [0002] Steel is generally in a medium environment during its service, and the main form of corrosion of steel in the medium is electrochemical corrosion. In essence, the principle of electrochemical corrosion of steel is that the anode of iron dissolves Fe→Fe 2+ +2e - Depolarize with oxygen O 2 +2H 2 O+4e - →4OH - or hydrogen depolarizes 2H + +2e - →H 2 The composition of the process, so that a large amount of oxides are formed on the surface of the steel, resulting in the decline of various properties of the steel, resulting in a large amount of property loss. Rust layer on steel surface, including iron oxide Fe(OH) 2 , Fe(OH) 3 , α-FeOOH, β-FeOOH, γ-FeOOH and δ-FeOOH, et...

Claims

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Application Information

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IPC IPC(8): C23C18/12
CPCC23C18/1216C23C18/1254C23C18/1241
Inventor 王吉会赵凤珠胡文彬
Owner TIANJIN UNIV
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