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A kind of water-based active anticorrosion coating and preparation method thereof

An anti-corrosion coating and active technology, which is applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor dispersion stability of water-based coatings against strong mechanical forces, single function of anti-corrosion coatings, and low solid content. Excellent weather resistance, stable conductivity, and strong adhesion

Active Publication Date: 2017-10-10
JIANGSU XIN AN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of water-based anti-corrosion coatings on the market, but they generally have the disadvantage of low solid content, which will increase the cost of manufacturers. Therefore, the development of anti-corrosion coatings with high solid content is the focus of scientific researchers; in addition , the function of a single system of anti-corrosion coatings is relatively single, and there are some shortcomings in application; the compactness of water-based coatings also needs to be improved, so as to improve the mechanical properties of coatings; water-based coatings have higher requirements on the cleanliness of the substrate surface and the construction process , due to the high surface tension of water, dirt is easy to cause shrinkage of the coating film, and the dispersion stability of water-based coatings against strong mechanical forces is poor. When the flow rate in the pipeline changes sharply, the dispersed particles are compressed into solid particles, making the coating membrane pitting
Furthermore, water-based anti-corrosion coatings fundamentally rely on the hydrophilization of film-forming resins. There are two ways to hydrophilize resins: self-emulsification and external emulsification. No matter which way, substances containing hydrophilic functional groups must be introduced. , in the self-crosslinking system, the general hydrophilic functional groups of the coating film are still free, and have not been cross-linked into hydrophobic segments, which will inevitably affect the properties of the coating film such as medium resistance and corrosion resistance

Method used

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  • A kind of water-based active anticorrosion coating and preparation method thereof
  • A kind of water-based active anticorrosion coating and preparation method thereof
  • A kind of water-based active anticorrosion coating and preparation method thereof

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Embodiment 1

[0043] The present embodiment provides a kind of water-based active anticorrosion coating, and its composition is as follows by mass parts:

[0044]

[0045] The present embodiment also provides a kind of preparation method of water-based active anticorrosion coating, and the preparation steps are as follows:

[0046] Step (1): first prepare petroleum resin with a solid content of 30%, mix the petroleum resin and organic solvent in a mass ratio of 3:7, and stir and disperse in the stirring tank, the stirring speed is 500r / min, and the stirring time is 90min. Stir until colorless transparent viscous liquid, set aside;

[0047] Step (2): Then add the petroleum resin, epoxy resin, silicon carbide, organic active agent and water-based solvent with a solid content of 30% prepared in step (1) into the stirring tank and stir evenly at a stirring speed of 500r / min , stirring time 90min;

[0048]Step (3): Finally, add zinc naphthenate and a surfactant and stir at a low speed for 3...

Embodiment 2

[0054] The present embodiment provides a kind of water-based active anticorrosion coating, and its composition is as follows by mass parts:

[0055]

[0056] The present embodiment also provides a kind of preparation method of water-based active anticorrosion coating, and the preparation steps are as follows:

[0057] Step (1): first prepare petroleum resin with a solid content of 30%, mix the petroleum resin and organic solvent in a mass ratio of 3:7, and stir and disperse in the stirring tank, the stirring speed is 800r / min, and the stirring time is 60min. Stir until colorless transparent viscous liquid, set aside;

[0058] Step (2): Then add the petroleum resin, epoxy resin, silicon carbide, organic active agent and water-based solvent with a solid content of 30% prepared in step (1) into the stirring tank and stir evenly at a stirring speed of 800r / min , stirring time 60min;

[0059] Step (3): Finally, add zinc naphthenate and a surfactant and stir at a low speed for ...

Embodiment 3

[0064] The present embodiment provides a kind of water-based active anticorrosion coating, and its composition is as follows by mass parts:

[0065]

[0066] The present embodiment also provides a kind of preparation method of water-based active anticorrosion coating, and the preparation steps are as follows:

[0067] Step (1): first prepare petroleum resin with a solid content of 30%, mix the petroleum resin and organic solvent in a mass ratio of 3:7, and stir and disperse in the stirring tank, the stirring speed is 650r / min, and the stirring time is 75min. Stir until colorless transparent viscous liquid, set aside;

[0068] Step (2): Then add the petroleum resin, epoxy resin, silicon carbide, organic active agent and water-based solvent with a solid content of 30% prepared in step (1) into the stirring tank and stir evenly at a stirring speed of 650r / min , stirring time 75min;

[0069] Step (3): Finally, add zinc naphthenate and surfactant and stir at a low speed for 32...

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Abstract

The invention belongs to the field of chemical industry, and relates to an anti-corrosion coating, in particular to a water-based active anti-corrosion coating and a preparation method thereof. 20-40 parts of resin, 2-15 parts of silicon carbide, 0.5-8 parts of zinc naphthenate, 30-45 parts of organic active agent, 2-4 parts of water-based solvent, and 1-3 parts of surfactant. It is used under certain conditions, long-term anti-corrosion, and the dry film thickness is above 300 μm. It has excellent weather resistance, anti-aging, anti-radiation, abrasion resistance, impact resistance and good thermal stability; strong adhesion, can be used on any curved surface, inclined surface And vertical surface spray molding, no sagging phenomenon; efficient and convenient, the formula system can be adjusted arbitrarily, can truly realize the self-curing of inorganic coatings at room temperature; in addition, the coating has self-repairing properties, and local scratches caused by external forces can still be damaged Protection, the coating is not damaged by cutting and welding, and the welding with coating does not affect the welding quality.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to an anti-corrosion coating, in particular to a water-based active anti-corrosion coating and a preparation method thereof. Background technique [0002] At present, there are many kinds of water-based anti-corrosion coatings on the market, but they generally have the disadvantage of low solid content, which will increase the cost of manufacturers. Therefore, the development of anti-corrosion coatings with high solid content is the focus of scientific researchers; in addition , the function of a single system of anti-corrosion coatings is relatively single, and there are some shortcomings in application; the compactness of water-based coatings also needs to be improved, so as to improve the mechanical properties of coatings; water-based coatings have higher requirements on the cleanliness of the substrate surface and the construction process , due to the high surface tension of water,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D157/02C09D5/08C09D7/12
Inventor 杨松林吴福娣陈晓兵
Owner JIANGSU XIN AN NEW MATERIALS TECH
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