Composite nanometer anti-corrosion coating of shell-imitation structure and preparation method thereof

An anti-corrosion coating, imitation shell technology, applied in anti-corrosion coatings, coatings, polyester coatings, etc., can solve the problems of environmental pollution of pickling waste, cracking of steel structure surface coatings, threats to workers' health, etc., to achieve adsorption Good effect, low Zn content and long UV aging resistance

Active Publication Date: 2018-08-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, hot-dip galvanizing is one of the mainstream anti-corrosion technologies. The core is to use electrochemical mechanisms to provide steel structure anti-corrosion coatings through a series of processes such as washing, pickling, dipping, hot-dip, cooling, etc., which has played a certain role. Anti-corrosion effect, but the complex process links, high energy consumption in heating and cooling links, and serious environmental pollution caused by pickling wa

Method used

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  • Composite nanometer anti-corrosion coating of shell-imitation structure and preparation method thereof
  • Composite nanometer anti-corrosion coating of shell-imitation structure and preparation method thereof
  • Composite nanometer anti-corrosion coating of shell-imitation structure and preparation method thereof

Examples

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Effect test

Embodiment 1

[0040] A method for preparing a composite nano anticorrosive coating with a shell-like structure, the steps are as follows:

[0041] (1) First, mix the Ti-containing compound powder, the C-containing compound powder and the Al-containing compound powder at a molar ratio of 2:1:2, and then add them to the planetary ball mill, and pass the Ar gas flow at a rate of 300r / min Grind for 1 hour to prepare the precursor MAX three-dimensional ceramic phase, and then use HF solution to etch MAX to obtain Ti 2 C two-dimensional sheet material;

[0042] (2) Combine the flaky nano-Zn with a thickness of 20μm and a diameter of 50μm and a Ti with a length of 1μm and a thickness of 0.1nm. 2 The irregular lamellae of C were ball-milled in a planetary ball mill at a rate of 430r / min for 2h to obtain a uniform filler slurry, added ethylene glycol and SK-5040, and ultrasonicated for 1h to obtain a uniform MXene-Zn composite dispersion; Ester and butyl acrylate were dissolved in a mass ratio of 1:4 and...

Embodiment 2

[0048] A method for preparing a composite nano anticorrosive coating with a shell-like structure, the steps are as follows:

[0049] (1) First, Ti 2 AlC and TiC were mixed at a molar ratio of 1:1 and then added to the planetary ball mill. The Ar gas flow was introduced, and the grinding was carried out at a rate of 200r / min for 2 hours to prepare the precursor MAX three-dimensional ceramic phase. Then the MAX was etched with HCl solution. Ti 3 C 2 Two-dimensional sheet material;

[0050] (2) The flaky nano Zn with a thickness of 20μm and a sheet diameter of 10μm is combined with Ti with a length of 1nm and a thickness of 10nm. 3 C 2 Irregular flakes were milled in a planetary ball mill with Ar air flow at a rate of 300r / min for 3h to obtain a uniform filler slurry, added acetone and LBCB-1, and ultrasonicated for 2h to obtain a uniform MXene-Zn composite dispersion; after decomposing the dissolved silicone resin Disperse uniformly at a speed of 500rpm, then add MXene-Zn composite d...

Embodiment 3

[0056] A method for preparing a composite nano anticorrosive coating with a shell-like structure, the steps are as follows:

[0057] (1) First, the compound powder containing V, the compound powder containing Si and the compound powder containing C are mixed at a molar ratio of 2:1:1 and then added to the planetary ball mill, and an Ar gas flow is introduced at a rate of 200r / min. Grind for 1h to prepare the precursor MAX three-dimensional ceramic phase, and then use O 2- The compound acid solution etches MAX to obtain V 2 C two-dimensional sheet material;

[0058] (2) Combine a sheet-like nano metal with a thickness of 20 μm and a sheet diameter of 10 μm with a V with a length of 1 μm and a single layer thickness of 0.8 nm. 2 C. Irregular flakes were milled in a planetary ball mill at a rate of 300r / min for 2h to obtain a uniform filler slurry. Water and LBD-1 were added and ultrasonicated for 1h to obtain a uniform MXene-Al composite dispersion; after dissolving the polyvinyl alco...

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Abstract

The invention relates to a composite nanometer anti-corrosion coating of a shell-imitation structure and a preparation method thereof. Firstly, flaky nanometer metal and flaky nanometer MXene are uniformly mixed; then, solvents and dispersion agents are added to obtain uniform MXene-metal composite dispersion liquid; next, resin is added to obtain a mixed solution; next, anti-foaming agents, curing agents, leveling agents, thickening agents, surface modification agents, corrosion inhibitors and complexing agents are sequentially added into the mixed solution and are uniformly mixed to obtain the composite nanometer anti-corrosion paint; finally, the composite nanometer anti-corrosion paint is coated onto the surface of the substrate to obtain the composite nanometer anti-corrosion coating.The preparation method provided by the invention has the advantages that the acid washing and the phosphatization are not needed; the investment of a great number of coal resources for heat supply isnot needed; the preparation process is simple and convenient; the energy consumption is low. The prepared composite nanometer anti-corrosion coating of the shell-imitation structure has the advantages that the Zn content is low; the adsorption effect between the filling materials and the resin is good; a good conductive path is formed by the MXene-metal sheet layer structure; the corrosion can beinhibited; the anti-ultraviolet ageing time is long; good economic and environment protection values and practical popularization values are realized.

Description

Technical field [0001] The invention belongs to the field of metal anticorrosion, and relates to a composite nano anticorrosive coating with a shell-like structure and a preparation method thereof. Background technique [0002] With the prosperity of industry, the use of metal materials has spread throughout all areas of the national economy. However, the corrosion problem of steel structures has caused huge losses in production, and even endangers the lives of operators. Therefore, metal anti-corrosion technology is also increasing. It is generally valued by people. [0003] At present, hot-dip galvanizing is one of the mainstream anti-corrosion technologies. The core is the use of electrochemical mechanisms to provide steel structure anti-corrosion coatings through a series of processes such as washing, pickling, immersion, hot-dip, and cooling. Anti-corrosion effect, but the process is complicated, the heating and cooling are high energy consumption and the serious environmenta...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D131/04C09D129/04C09D167/08C09D5/10C09D7/61
CPCC08K2003/0812C08K2003/0893C08K2201/011C09D5/103C09D5/106C09D7/61C09D129/04C09D131/04C09D167/08C09D183/04C08L83/04C08K13/02C08K3/08C08K3/14C08K5/098C08L33/00C08L33/12C08L1/284C08K3/28
Inventor 葛邓腾杨丽丽金嫣王子威
Owner DONGHUA UNIV
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