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Heavy-duty anti-corrosion environment-friendly water-based industrial coating and preparation method thereof

A heavy anti-corrosion, water-based technology, applied in the field of coatings, can solve the problems of poor anti-corrosion performance, affect the aesthetics, and affect the anti-corrosion performance of industrial facilities, etc., achieve strong anti-corrosion performance and shrinkage performance, improve environmental protection, improve curing effect and The effect of salt spray resistance

Pending Publication Date: 2021-10-22
广东绿树环保涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heavy-duty anti-corrosion performance of existing water-based industrial coatings is poor, which not only affects the anti-corrosion performance of industrial facilities, but also affects the overall aesthetics

Method used

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  • Heavy-duty anti-corrosion environment-friendly water-based industrial coating and preparation method thereof

Examples

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Effect test

preparation example Construction

[0029] The preparation method of described waterborne epoxy A component comprises the following steps:

[0030] 1) A ring-opening reaction occurs using epoxy resin, polyethylene glycol diglycidyl ether and ethanolamine;

[0031] 2) Obtain reactive water-based epoxy emulsifier after neutralizing with glacial acetic acid again;

[0032] 3) The group in the emulsifier molecule was analyzed by infrared and the epoxy equivalent of the emulsifier was calculated to be 618g / mol according to the peak area at the epoxy characteristic absorption peak;

[0033] 4) Test the basic performance parameters of the emulsifier. The Krafft point of the emulsifier is 56°C, and the HLB value is about 16;

[0034] 5) Emulsifying the novolac epoxy resin NPPN631 with the above-mentioned water-based epoxy emulsifier to obtain a water-based epoxy emulsion.

[0035] A kind of preparation method of heavy-duty anti-corrosion coating environment-friendly water-based industrial coating comprises the followi...

Embodiment 2

[0041] A kind of heavy-duty anti-corrosion coating environment-friendly water-based industrial paint, it comprises two-component water-based epoxy primer and water-based acrylic polyurethane paint topcoat, the top surface of described two-component water-based epoxy primer is coated with water-based acrylic polyurethane paint surface The two-component waterborne epoxy primer is composed of waterborne epoxy A component and waterborne epoxy B component.

[0042] The water-based epoxy A component is a water-based epoxy emulsion.

[0043] The water-based epoxy B component includes the following raw materials in parts by mass: 2.4 parts of water-based amine curing agent, 1.2 parts of coating additives, 2.0 parts of pigments and fillers and 3.0 parts of co-solvent.

[0044] The preparation method of described waterborne epoxy A component comprises the following steps:

[0045] 1) A ring-opening reaction occurs using epoxy resin, polyethylene glycol diglycidyl ether and ethanolamine...

Embodiment 3

[0056] A kind of heavy-duty anti-corrosion coating environment-friendly water-based industrial paint, it comprises two-component water-based epoxy primer and water-based acrylic polyurethane paint topcoat, the top surface of described two-component water-based epoxy primer is coated with water-based acrylic polyurethane paint surface The two-component waterborne epoxy primer is composed of waterborne epoxy A component and waterborne epoxy B component.

[0057] The water-based epoxy A component is a water-based epoxy emulsion.

[0058] The water-based epoxy B component includes the following raw materials in parts by mass: 1.8 parts of water-based amine curing agent, 1.0 parts of coating additives, 1.5 parts of pigments and fillers and 2.25 parts of co-solvent.

[0059] The preparation method of described waterborne epoxy A component comprises the following steps:

[0060] 1) A ring-opening reaction occurs using epoxy resin, polyethylene glycol diglycidyl ether and ethanolamin...

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Abstract

The invention relates to the technical field of coatings, in particular to a heavy-duty environment-friendly water-based industrial coating and a preparation method thereof. The heavy-duty coating environment-friendly water-based industrial coating comprises a two-component water-based epoxy primer and a water-based acrylic polyurethane coating finish paint, and the top face of the two-component water-based epoxy primer is coated with the water-based acrylic polyurethane coating finish paint; a novel waterborne epoxy emulsion and a waterborne epoxy component B are subjected to crosslinking curing to obtain the two-component waterborne epoxy coating, the two-component waterborne epoxy coating has high adhesive force, the corrosion resistance and shrinkage performance of a coating film are high, no organic solvent is contained or the content of volatile organic compounds is low, and environmental pollution is reduced; a defoaming agent with the optimal proportion of 0.1%-0.3% is selected, the phenomenon that a large number of shrinkage cavities are generated in a coating film is reduced, meanwhile, the use dosage of the wetting and leveling agent is controlled, the situation that the effect of the defoaming agent is affected by too large use amount is prevented, the problem that color paste is layered is solved, and the curing effect and the salt spray resistance of the finishing paint for the water-based industrial coating are effectively improved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an environmentally friendly water-based industrial coating for heavy-duty anti-corrosion coating and a preparation method thereof. Background technique [0002] The main function of paint is to coat the surface of the object to be protected or decorated. Under certain conditions, it can form a thin film to protect, decorate, insulate, prevent rust, mildew, heat, etc. A type of liquid or solid material. Existing coatings are mainly divided into two types: water-based coatings and solvent-based coatings. The benzene compound in solvent-based coatings is a strong carcinogen, and the process of absorbing high-concentration benzene compounds in a short period of time will lead to anesthesia of the central nervous system. Symptoms include dizziness, headache, nausea, chest tightness, fatigue, and confusion in mild cases, and coma in severe cases, resulting in respiratory and circulato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/04C09D175/04C09D5/08C08G59/50C08J3/03
CPCC09D163/04C09D175/04C09D5/08C08G59/50C08J3/03C08G2150/90C08J2363/04
Inventor 吴金友
Owner 广东绿树环保涂料科技有限公司
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