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Application of MXene/silane surface composite silane film in metal corrosion protection

A composite silane film, metal corrosion technology, applied in the direction of metal material coating process, etc., can solve problems such as hindering the diffusion of corrosive medium, and achieve the effects of being conducive to industrialized amplification, wide source of raw materials, and simple process operation steps.

Active Publication Date: 2019-12-03
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of traditional single silanization treatment in metal corrosion protection and reduce the application cost of composite silane film, the present invention proposes the application of a composite silane film on the surface of MXene / silane in metal corrosion protection. The silane film can effectively It hinders the diffusion of corrosive medium in the silane film, greatly improves the corrosion resistance of the silane film, and the process operation is simple, which is conducive to industrialization

Method used

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  • Application of MXene/silane surface composite silane film in metal corrosion protection
  • Application of MXene/silane surface composite silane film in metal corrosion protection
  • Application of MXene/silane surface composite silane film in metal corrosion protection

Examples

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Effect test

Embodiment 1

[0055] First configure a 1% concentration of γ-GPS silane solution, wherein γ-GPS / water / ethanol is 1 / 5 / 94 (v / v / v), take a certain amount of MXene and γ-GPS silane solution, stir the solution to control The concentration of MXene was 1 mg / mL, the pH was adjusted to 4.5 with acetic acid, and ultrasonic hydrolysis was performed at 35 °C for 2 h. The size of the aluminum alloy is cut into 10mm×10mm×1mm, and polished step by step with 800#, 1000#, 1500#, 2000# water-grinding sandpaper, and then polished to a mirror surface with 1.0μm aluminum oxide abrasive paste on a velvet polishing cloth, and then After washing with 3wt% NaOH at room temperature for 30s, take it out, rinse it with a large amount of deionized water and dry it with a hair dryer, then immerse the sample in the prepared silane hydrolyzate for 1min and repeat 3 times, take it out and blow off the excess liquid, and put it in an oven at 120°C After 120 minutes of curing to form a film, a composite silane film can be o...

Embodiment 2

[0057] First configure a 5% concentration of BTSE silane solution, wherein BTSE / water / ethanol is 1 / 5 / 94 (v / v / v), take a certain amount of MXene and BTSE silane solution to mix, stir the solution to control the concentration of MXene to 1mg / mL, adjusted the pH to 4.5 with acetic acid, and ultrasonically hydrolyzed at 35°C for 2h. The size of the aluminum alloy is cut into 10mm×10mm×1mm, and polished step by step with 800#, 1000#, 1500#, 2000# water-grinding sandpaper, and then polished to a mirror surface with 1.0μm aluminum oxide abrasive paste on a velvet polishing cloth, and then After washing with 3wt% NaOH at room temperature for 30s, take it out, rinse it with a large amount of deionized water and dry it with a hair dryer, then immerse the sample in the prepared silane hydrolyzate for 1min and repeat 3 times, take it out and blow off the excess liquid, and put it in an oven at 120°C After 120 minutes of curing to form a film, a composite silane film can be obtained.

Embodiment 3

[0059] First configure a 5% concentration of BTSE silane solution, wherein BTSE / water / ethanol is 1 / 5 / 94 (v / v / v), take a certain amount of MXene and BTSE silane solution to mix, stir the solution to control the concentration of MXene to 1mg / mL, adjusted the pH to 4.5 with acetic acid, and ultrasonically hydrolyzed at 35°C for 2h. Q235 steel was polished step by step with 800#, 1000#, 1500#, and 2000# water-grinding sandpaper, and then polished to a mirror surface with 1.0 μm alumina abrasive paste on a velvet polishing cloth, and then washed with 3wt% NaOH at room temperature for 30 seconds, and then removed Finally, rinse with a large amount of deionized water and blow dry with a hair dryer, then immerse the sample in the prepared silane hydrolyzate for 1min and repeat 3 times, take it out and blow off the excess liquid, put it in an oven at 120°C for 120min to solidify and form a film, and then you can get a composite silane membrane.

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Abstract

The invention belongs to the field of metal corrosion protection, and particularly relates to application of an MXene / silane surface composite silane film in metal corrosion protection. The method comprises the following steps: preparing and hydrolyzing an MXene / silane mixed solution, carrying out surface treatment on a metal sample, dipping the metal sample in a mixed silane hydrolysate, and curing to form a film. The MXene / silane surface composite silane film protective surface treatment technology is adopted, the defect that a single silane film is not compact is overcome, the operation iseasy, safety and environmental protection are achieved, diffusion of a corrosive medium can be effectively hindered by doping the MXene, and the corrosion resistance of the silane film is improved.

Description

technical field [0001] The invention belongs to the field of metal corrosion protection, in particular to the application of an MXene / silane surface composite silane film in metal corrosion protection. Background technique [0002] Metal materials are widely used in human life, and corrosion is an important factor causing the waste of metal materials. Aluminum alloy and steel have excellent properties and are widely used in various fields of industrial production. However, aluminum alloys and steels have general corrosion resistance, especially hard aluminum alloys and superhard aluminum alloys, which generally have poor corrosion resistance. With the improvement of people's environmental protection requirements in recent years, the traditional chromate passivation anti-corrosion technology has been gradually eliminated. Many researchers have been looking for an aluminum alloy surface treatment technology that is environmentally friendly, energy-saving and efficient, and ha...

Claims

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Application Information

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IPC IPC(8): C23C22/50C23C22/56
CPCC23C22/50C23C22/56C23C2222/20
Inventor 曹美文聂焱马晟焱石永康李智超党梦涛王生杰夏永清
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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