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Waterborne epoxy anticorrosive paint and preparation method thereof

An anti-corrosion coating, water-based epoxy technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of increased organic volatiles, inconvenient use, and increased costs.

Inactive Publication Date: 2021-06-22
XIAMEN SUNRUI SHIP COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above method has the following disadvantages: (1) The pigments and fillers are pre-ground, which is easy to precipitate without stirring, unstable in storage, and extremely inconvenient to use, adding to the production process and increasing the cost; (2) Adding film-forming aids, the VOC content of the system increase, leading to an increase in organic volatiles, which is not conducive to environmental protection

Method used

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  • Waterborne epoxy anticorrosive paint and preparation method thereof
  • Waterborne epoxy anticorrosive paint and preparation method thereof
  • Waterborne epoxy anticorrosive paint and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] In above-mentioned embodiment 1:

[0046] Waterborne epoxy resin B adopts diglycidyl isophthalate;

[0047] The dispersant is 650U; the defoamer is 285W; the wetting agent is 470U; the thixotropic agent is water-based bentonite;

[0048] The water-based curing agent adopts modified polyamide;

Embodiment 2

[0050] Waterborne epoxy resin B adopts diglycidyl hexahydrophthalate;

[0051]The dispersant uses 690W defoamer, uses 280W wetting agent, uses 360S thixotropic agent, and uses water-based silicate;

[0052] The anti-flash agent adopts Puwei F5100

[0053] The water-based curing agent adopts modified alicyclic amine;

Embodiment 3

[0055] Waterborne epoxy resin B adopts diglycidyl adipate;

[0056] The dispersant is 520S;

[0057] The defoamer is 290W, and the wetting agent is 385S;

[0058] The thixotropic agent adopts organically modified hectorite clay;

[0059] The anti-flash agent adopts Puwei F5100;

[0060] The water-based curing agent adopts modified polyamidoamine;

[0061] In Comparative Example 1 and Comparative Example 2, except for water-based epoxy resins A and B, the specific raw materials and ratios adopted are consistent with those in Example 3.

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Abstract

The waterborne epoxy anticorrosive paint comprises a component A and a component B. The component A comprises waterborne epoxy resin A, waterborne epoxy resin B, a dispersing agent, a defoaming agent, a wetting agent, a thixotropic agent, an anti-flash agent, pigment, filler and deionized water, the component B comprises a curing agent and deionized water, and the curing agent is an amine curing agent. The invention further provides a preparation method of the waterborne epoxy anticorrosive paint. The preparation method comprises a specific mixing sequence and process parameters.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a water-based epoxy anticorrosion coating and a preparation method thereof. Background technique [0002] The water-based anti-corrosion coating with water as the dispersion and resin as the film-forming base material has the advantages of low VOC emission, comparable performance to solvent-based anti-corrosion coatings, and low cost. It will become one of the development trends of environmentally friendly coatings in the future. [0003] At present, most of the water-based epoxy anti-corrosion resins on the market are emulsion type, and the preparation process is generally as follows: pre-grind the pigment and filler solution, and then disperse and mix with the emulsion at high speed; at the same time, the emulsion-type water-based epoxy also needs to add a film-forming agent that has a high boiling point. Solvent, assisting the resin to cure and form a film. [0004...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08
CPCC09D163/00C09D5/08C08L2205/025C08L63/00
Inventor 王胜龙温正明杨名亮吴培发
Owner XIAMEN SUNRUI SHIP COATING
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