Composite coating application, anti-corrosion material and preparing method of anti-corrosion material

A composite coating and anti-corrosion technology, applied in chemical materials and application fields, can solve problems such as rapid degradation obstacles, and achieve the effects of easy molding, high safety, and short processing time

Active Publication Date: 2018-12-14
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although magnesium has the characteristics of light weight, non-toxicity, and good mechanical properties, processability and degradability, the rapid degradation of magnesium in corrosive aqueous solutions has become the biggest obstacle to its application.

Method used

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  • Composite coating application, anti-corrosion material and preparing method of anti-corrosion material
  • Composite coating application, anti-corrosion material and preparing method of anti-corrosion material
  • Composite coating application, anti-corrosion material and preparing method of anti-corrosion material

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Experimental program
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no. 1 approach

[0048] The first embodiment of the present invention provides an application of a composite coating in anti-corrosion. Such as figure 1 As shown, the composite coating 2 of the present invention may include: a hydrophilic layer 22 and a hydrophobic layer 21 in contact with each other,

[0049] The hydrophilic layer 22 contains hydrophilic substances, and the hydrophobic layer 21 contains hydrophobic substances.

[0050] The composite coating 2 of the present invention may be a Janus film, and a Janus film generally refers to a film structure with an asymmetric structure or property. The key to distinguish Janus membranes from general asymmetric membranes is whether the properties of the two sides of the membrane are "opposite", such as hydrophilic / hydrophobic or positively charged / negatively charged, etc. Called the Janus membrane. In the present invention, the composite coating 2 has two sides with different properties, that is, has a Janus structure, and can simultaneous...

no. 2 approach

[0063] The second embodiment of the present invention provides an anti-corrosion material. The anti-corrosion material includes: a substrate 1 and a composite coating 2 formed on the surface of the substrate 1;

[0064] The composite coating 2 is the composite coating 2 in the first embodiment.

[0065] Generally speaking, in the present invention, the composite coating 2 can be directly formed on the surface of the substrate 1, so as to play an anti-corrosion role. In the present invention, the composite coating 2 can also be pre-prepared, and then placed on the surface of the substrate 1, so as to play the role of anti-corrosion.

[0066] The composite coating 2 in the anti-corrosion material of the present invention prevents liquid penetration under the joint action of hydrophobic force, static pressure and capillary force, thereby achieving the purpose of anti-corrosion. The composite coating 2 will not allow liquid to penetrate, and the liquid will not enter the composit...

no. 3 approach

[0073] The third embodiment of the present invention provides a method for preparing an anti-corrosion material according to the second embodiment of the present invention, comprising:

[0074] Material acquisition step: dissolving a hydrophobic substance in a first solvent to obtain a hydrophobic material; dissolving a hydrophilic substance in a second solvent to obtain a hydrophilic material;

[0075] Forming step: making the hydrophilic material and the hydrophobic material alternately form a composite coating 2 on the surface of the substrate 1; preferably,

[0076] The surface and / or inside of the composite coating 2 may have multiple pore structures, and the average pore diameter of the pore structures is between 0.1-1000 nm.

[0077] In this embodiment, the first solvent is a solvent that can dissolve or partially dissolve hydrophobic substances, such as dichloromethane, chloroform, benzene, tetrahydrofuran, and the like. The second solvent is a solvent that can dissol...

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Abstract

The invention relates to composite coating application, an anti-corrosion material and a preparing method of the anti-corrosion material. The composite coating comprises a hydrophilic layer and a hydrophobic layer which are in contact. The hydrophilic layer comprises hydrophilic substances. The hydrophobic layer comprises hydrophobic substances. The anti-corrosion material comprises a base body and the composite coating formed on the surface of the base body. The composite coating can be applied to the field of corrosion preventing, liquid permeation is avoided, and the anti-corrosion functioncan be effectively achieved. Furthermore, due to the composite coating in the anti-corrosion material, liquid permeation is avoided, the situation that liquid enters the composite coating and makes contact with the base body, and the base body is corroded is avoided, and the anti-corrosion function can be effectively achieved.

Description

technical field [0001] The invention relates to the application of a composite coating, an anti-corrosion material and a preparation method thereof, and belongs to the field of chemical materials and applications. Background technique [0002] Chemical materials (such as metals, plastics, etc.) are prone to corrosion under the action of the external environment and bring huge losses to the economy. In order to inhibit the corrosion of chemical materials, the common anti-corrosion method is to use organic or inorganic coating. Although these coatings have played a protective role against chemical materials to a certain extent, there are still many problems in actual use. Usually, the presence of microporous defects in organic or inorganic coatings will weaken the anti-corrosion effect of the coating, which greatly reduces the service life of chemical materials. [0003] In recent years, based on the principle of bionics, people have imitated the super-hydrophobic surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/24C09D179/04C09D5/08C09D167/04
CPCB05D7/24C09D5/08C09D167/04C09D179/04
Inventor 王彩旗崔含蕊赵建亮
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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