Preparation method of super-hydrophobic surface of corrosion-resistant magnesium alloy

A super-hydrophobic surface, corrosion-resistant technology, applied in surface reaction electrolytic coatings, electrolytic coatings, coatings, etc., can solve the problems of long manufacturing method cycle, environmental pollution, poor corrosion resistance of magnesium alloy hydrophobic surface, etc. The effect of preparation cycle, increasing photosensitivity, and increasing hydrophobicity

Inactive Publication Date: 2018-04-17
王景硕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem to be solved by the present invention: Aiming at the problem that the current magnesium alloy hydrophobic surface has poor corrosion resistance, and the manufacturing process cycle is too long, causing pollution to the environment, the present invention provides a method for preparing a corrosion-resistant magnesium alloy superhydrophobic surface

Method used

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Examples

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Effect test

preparation example Construction

[0025] A method for preparing a corrosion-resistant magnesium alloy superhydrophobic surface, the preparation method comprising the steps of:

[0026] (1) In parts by weight, take 80-90 parts of acetone, 45-50 parts of polyoxypropylene glycol, 25-30 parts of toluene diisocyanate, 13-15 parts of dimethylol propionic acid, and 10-13 parts of laurel monoglyceride, 9-11 parts of fumaric acid, 8-10 parts of nano-titanium dioxide, 3-5 parts of catalyst, 2-5 parts of cross-linking agent, 1-3 parts of nano-silver and 1-3 parts of emulsifier;

[0027] (2) First put acetone, polyoxypropylene glycol, toluene diisocyanate, and dimethylol propionic acid into the reaction kettle, use nitrogen protection, preheat at 60-80°C for 45-50 minutes, and then add cinnamic acid Monoglyceride and cross-linking agent are heated to 100-105°C for 3-6 hours;

[0028] (3) After the reaction is over, lower the temperature to 85-90°C, add fumaric acid, nano-titanium dioxide, nano-silver, catalyst and emulsi...

Embodiment 1

[0033] The catalyst is a platinum catalyst (Tianjin Saifei Chemical Technology Development Co., Ltd.).

[0034] The crosslinking agent is dicumyl peroxide.

[0035] The emulsifier is phenylethylphenol polyoxyethylene ether.

[0036] A method for preparing a corrosion-resistant magnesium alloy superhydrophobic surface, the preparation method comprising the steps of:

[0037] (1) In parts by weight, take 85 parts of acetone, 48 parts of polyoxypropylene glycol, 28 parts of toluene diisocyanate, 14 parts of dimethylol propionic acid, 12 parts of monoglyceride laurate, and 10 parts of fumaric acid , 9 parts of nano-titanium dioxide, 4 parts of catalyst, 4 parts of crosslinking agent, 2 parts of nano-silver and 2 parts of emulsifier;

[0038] (2) First put acetone, polyoxypropylene glycol, toluene diisocyanate, and dimethylol propionic acid into the reaction kettle, use nitrogen protection, preheat at 70°C for 48 minutes, then add monoglyceride laurate, Cross-linking agent, heat...

Embodiment 2

[0044] The catalyst is a platinum catalyst (Tianjin Saifei Chemical Technology Development Co., Ltd.).

[0045] The crosslinking agent is benzoyl peroxide.

[0046] The emulsifier is phenylethylphenol polyoxyethylene ether.

[0047] A method for preparing a corrosion-resistant magnesium alloy superhydrophobic surface, the preparation method comprising the steps of:

[0048] (1) In parts by weight, take 90 parts of acetone, 50 parts of polyoxypropylene glycol, 30 parts of toluene diisocyanate, 15 parts of dimethylol propionic acid, 13 parts of monoglyceride laurate, and 11 parts of fumaric acid , 10 parts of nano titanium dioxide, 5 parts of catalyst, 5 parts of crosslinking agent, 3 parts of nano silver and 3 parts of emulsifier;

[0049] (2) First put acetone, polyoxypropylene glycol, toluene diisocyanate, and dimethylol propionic acid into the reaction kettle, use nitrogen protection, preheat at 80°C for 50 minutes, then add monoglyceride laurate, Cross-linking agent, hea...

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Abstract

The invention belongs to the technical field of material surface treatment and particularly relates to a preparation method of a super-hydrophobic surface of a corrosion-resistant magnesium alloy. According to the method, surface corrosion treatment is performed on the magnesium alloy by the aid of an organic acid firstly, the uneven surface is formed on the surface of the magnesium alloy, then treatment is performed in a discharging material, nano titanium dioxide in the discharging material settles in the concave position of the magnesium alloy, a central point is formed, substances in the discharging material form a film on the surface of the magnesium alloy during electrification, meanwhile, a snowflake shape is formed in the nano titanium dioxide central point, the hydrophobic performance is increased, the magnesium alloy and silver ions form oxide to be quickly attached to the surface of the magnesium alloy, the formed super-hydrophobic surface forms a micro-two-layer structure,the structure and an organic silicone monomer are subjected to a grafting reaction under the action of the nano titanium dioxide, the hydrophobic performance is improved, the corrosion resistance is improved, then waterborne polyurethane is synthesized, a modified polymer has the photosensitive property through modification by the aid of glycerol monolaurate and fumaric acid, and self-setting is performed under the action of titanium dioxide.

Description

technical field [0001] The invention belongs to the technical field of material surface treatment, and in particular relates to a method for preparing a superhydrophobic surface of a corrosion-resistant magnesium alloy. Background technique [0002] As a light metal material, magnesium alloy is considered to be a green engineering material in the 21st century. Because of its advantages of high specific strength, high specific stiffness, good thermal fatigue performance, good biocompatibility, excellent electromagnetic shielding performance, strong thermal and electrical conductivity, good shock resistance and recyclability, it is widely used in transportation, biomedicine, aerospace, etc. And defense industry and other fields have a broad application prospect. In recent years, due to its good biocompatibility, low density, and elastic modulus similar to that of human bones, magnesium alloys have become the most promising medical metal materials and have strong development p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/22C25D11/00
CPCC23F1/22C25D11/00
Inventor 陈莉莉刘芳尹凯欣
Owner 王景硕
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