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Anticorrosive and environmentally-friendly water-based coating and preparation method thereof

A technology of environmentally friendly coatings and water-based epoxy resins, which can be used in fire-resistant coatings, epoxy resin coatings, anti-fouling/underwater coatings, etc., and can solve problems such as insufficient environmental protection performance, poor mechanical properties of coatings, and easy corrosion , to achieve the effect of improving weathering resistance, avoiding environmental pollution and waste of resources, and preventing water penetration

Inactive Publication Date: 2018-12-18
SHENZHEN NANSHUO MINGTAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of water-based anticorrosion environmental protection coating and preparation method thereof, to solve the following technical problems in the prior art: (1) traditional coating adopts organic solvent as dispersing medium, and environmental performance can't meet the requirement; (2) Traditional coatings will release a large amount of harmful substances such as formaldehyde; (3) The mechanical properties of traditional coatings are not good, and they are easy to corrode, crack and fall off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The preparation method of described water-based anticorrosion environmental protection paint, comprises the steps:

[0036] Step S1. Heat the water-based epoxy resin to 40-50°C, then add emulsifier while stirring slowly. After stirring evenly, increase the rotation speed to 2000-3000r / min and start adding half of the deionized water. Add deionized water After completion, a white stable emulsion is formed, and the high-speed stirring is continued for 30-35 minutes to obtain a resin emulsion;

[0037] Step S2, prepare the filler, modified graphene oxide, half of dioctyl sodium sulfosuccinate, half of NXZ defoamer, silicone acrylate leveling agent, and half of deionized water in proportion, after mixing After dispersing and stirring at a low speed of 800r / min, and then grinding and stirring at a high speed of 2000-2500r / min for 1-1.2h, mixture I was obtained;

[0038] Step S3, mix the base material, photocatalyst, half of NXZ defoamer, half of dioctyl sodium sulfosuccinat...

Embodiment 1

[0041] A water-based anti-corrosion and environmental protection coating, prepared from the following main raw materials in parts by weight: 40 parts of water-based epoxy resin, 30 parts of base material, 5 parts of filler, 4 parts of modified graphene oxide, 1 part of photocatalyst, and 1 part of emulsifier 2 parts, 2 parts of silicone acrylate leveling agent, 3 parts of dioctyl sodium sulfosuccinate, 2 parts of NXZ defoamer, 2 parts of hydroxyethyl cellulose, 20 parts of deionized water, 2-amino-2 - 0.5 parts of methyl-1-propanol;

Embodiment 2

[0043] A water-based anti-corrosion and environmental protection coating, prepared from the following main raw materials in parts by weight: 45 parts of water-based epoxy resin, 40 parts of base material, 8 parts of filler, 5 parts of modified graphene oxide, 1.5 parts of photocatalyst, 2 parts of emulsifier 2.5 parts of silicone acrylate leveling agent, 4 parts of dioctyl sodium sulfosuccinate, 3.5 parts of NXZ defoamer, 2.5 parts of hydroxyethyl cellulose, 25 parts of deionized water, 2-amino-2 - 0.8 parts of methyl-1-propanol;

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PUM

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Abstract

The invention discloses an anticorrosive and environmentally-friendly water-based coating. The coating is mainly prepared from, by weight, 40-50 parts of waterborne epoxy resin, 30-50 parts of a basematerial, 5-10 parts of a filler, 4-6 parts of modified graphene oxide, 1-2 parts of a photocatalyst, 1-3 parts of an emulsifier, 2-3 parts of a silicone acrylate leveling agent, 3-5 parts of sodium diisooctyl sulfosuccinate, 2-5 parts of an NXZ defoamer, 2-3 parts of hydroxyethyl cellulose, 20-30 parts of deionized water and 0.5-1 part of 2-amino-2-methyl-1-propanol. The invention also disclosesa preparation method of the coating. The preparation method comprises the following steps: emulsification of the waterborne epoxy resin, preparation of a filler mixture, preparation of a base materialmixture, and uniform grinding and stirring. Potassium silicate, sodium silicate and silica sol are compounded as a base material, the waterborne epoxy resin is used as an emulsion, and water as a dispersion medium, so environmental pollution and resource waste caused by using of an organic solvent are avoided, and the coating has no pollution in the production or use process, and has excellent environmental protection performance and mechanical performances.

Description

technical field [0001] The invention belongs to the technical field of paint and its preparation, and in particular relates to a water-based anti-corrosion and environment-friendly paint and a preparation method thereof. Background technique [0002] With the development of various industries in the national economy, the paint industry has gradually developed from a very unobtrusive small industry to an indispensable and important industry in various fields of the national economy. Nowadays, the use of paint can be seen everywhere, such as car surface, home appliance shell, home decoration, etc., especially wall paint and furniture paint in home decoration. Traditional coatings will release a large amount of harmful substances such as formaldehyde and benzene, which directly endanger the health of builders and users. [0003] In addition, traditional coatings use organic solvents as the dispersion medium. The transportation and storage of coatings have high requirements, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/61C09D7/62C09D7/63C09D7/65C09D7/20C09D5/18C09D5/16
CPCC08K2003/2241C08K2201/011C08L2201/02C09D5/1687C09D5/18C09D7/20C09D163/00C08L1/284C08K13/06C08K9/04C08K3/042C08K5/17C08K3/34C08K3/36C08K3/22
Inventor 不公告发明人
Owner SHENZHEN NANSHUO MINGTAI TECH CO LTD
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