Environment-friendly water-based paint and preparation method thereof

A water-based coating and environmental protection technology, applied in the direction of epoxy resin coating, conductive coating, anti-corrosion coating, etc., can solve the problems of poor dispersion stability of pigments and fillers, surfactant foam, poor wetting of substrates, etc., to achieve low environmental pollution, Improved corrosion protection, wide range of industrial applications

Active Publication Date: 2020-07-14
厦门辉腾盛科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In water-based coatings, due to the excessive surface tension of water, the water-based epoxy coating will have poor wetting to the substrate. In order to avoid poor wetting defects, surfactants are usually added to change the surface tension of the coating, but the addition is not appropriate. Surfactants can cause tricky foam problems
In addition, during the use of water-based epoxy coatings, due to the poor dispersion stability of pigments and fillers, it is easy to cause problems such as blooming, floating color, and thickening of the coating film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] An environmentally friendly water-based paint, comprising the following raw materials by weight: 18 parts by weight epoxy resin, 10 parts by water, 0.3 parts by polyethylene wax, 7 parts by talc, 8 parts by barium sulfate, 0.25 parts by ammonia, 0.5 parts by triethylamine, trimer 3.5 parts of aluminum phosphate, 0.4 parts of cobalt isooctanoate, 0.6 parts of composite conductive polymer, 0.6 parts of cetyltrimethylammonium bromide, 0.6 parts of lanthanum citrate, and 2.4 parts of stabilizer.

[0062] The stabilizer is a mixture of ethylene glycol butyl ether, polyurethane and mixed suspending agent, and the mass ratio of the ethylene glycol butyl ether, polyurethane and mixed suspending agent is 1:1:1.

[0063] The preparation method of the composite conductive polymer is: mixing β-naphthalenesulfonic acid, pyridine, and deionized water at 0°C, stirring at a speed of 200r / min for 15min, adding aniline and ammonium persulfate, maintaining the temperature and speed Without cha...

Embodiment 2

[0076] An environmentally friendly water-based paint, comprising the following raw materials by weight: 18 parts by weight epoxy resin, 10 parts by water, 0.3 parts by polyethylene wax, 7 parts by talc, 8 parts by barium sulfate, 0.25 parts by ammonia, 0.5 parts by triethylamine, trimer 3.5 parts of aluminum phosphate, 0.4 parts of cobalt isooctanoate, 0.9 parts of composite conductive polymer, 0.9 parts of cetyltrimethylammonium bromide, 2.4 parts of stabilizer.

[0077] The stabilizer is a mixture of ethylene glycol butyl ether, polyurethane and mixed suspending agent, and the mass ratio of the ethylene glycol butyl ether, polyurethane and mixed suspending agent is 1:1:1.

[0078] The preparation method of the composite conductive polymer is: mixing β-naphthalenesulfonic acid, pyridine, and deionized water at 0°C, stirring at a speed of 200r / min for 15min, adding aniline and ammonium persulfate, maintaining the temperature and speed Without changing, continue to stir for 9 hours,...

Embodiment 3

[0090] An environmentally friendly water-based paint, comprising the following raw materials by weight: 18 parts by weight epoxy resin, 10 parts by water, 0.3 parts by polyethylene wax, 7 parts by talc, 8 parts by barium sulfate, 0.25 parts by ammonia, 0.5 parts by triethylamine, trimer 3.5 parts of aluminum phosphate, 0.4 parts of cobalt isooctanoate, 0.9 parts of cetyltrimethylammonium bromide, 0.9 parts of lanthanum citrate, and 2.4 parts of stabilizer.

[0091] The stabilizer is a mixture of ethylene glycol butyl ether, polyurethane and mixed suspending agent, and the mass ratio of the ethylene glycol butyl ether, polyurethane and mixed suspending agent is 1:1:1.

[0092] The preparation method of the lanthanum citrate is as follows: mix citric acid monohydrate and lanthanum acetate at a mass ratio of 1:1.5, and place them in a rubber mill at 40°C and 1800r / min for grinding, with a grinding time of 70 minutes and a drying oven at 60°C Inner drying for 2 hours to obtain lanthanu...

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Abstract

The invention discloses environment-friendly water-based paint and a production technology thereof. The paint is prepared from raw materials as follows: 15-20 parts of epoxy resin, 7-13 parts of water, 0.25-0.5 parts of a defoaming agent, 6-8 parts of filler, 6-10 parts of barium sulfate, 0.2-0.3 parts of ammonia water, 0.5-1 part of triethylamine, 2-5 parts of aluminum triphosphate, 0.3-0.5 partsof cobalt iso-octoate, 1.5-2 parts of a corrosion inhibitor and 1-4 parts of a stabilizer. The environment-friendly water-based paint takes water as a medium, various aids are added to the paint, theprepared paint has multiple effects, multiple physical properties such as corrosion resistance, conductivity, stability and the like of the paint are significantly improved, the service life of the paint is prolonged, the paint causes small environmental pollution, is environmentally friendly and energy-saving and has wide industrial applications, and the economic benefits of the paint are increased.

Description

Technical field [0001] The invention relates to the field of coatings, in particular to an environmentally friendly water-based coating and a preparation method thereof. Background technique [0002] As an important material of modern industry, metals play a vital role in all aspects. Metals are exposed to the air for a long time and are easily corroded through chemical and electrochemical effects. According to statistics, my country’s economy due to metal corrosion every year The losses amounted to hundreds of billions. At present, in order to protect steel from corrosion and prolong its service life, anti-corrosion coating on steel has become the most economical and effective method. With the development of the coating industry and coating technology towards low pollution, water-based coatings are increasingly emerging. Water-based paint reduces the harm and pollution caused to the environment, reduces the damage to human health, reduces the production cost of the paint, facil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/24C09D5/08C09D7/61C09D7/62
CPCC08K2003/3045C08K2201/014C08L2205/035C09D5/08C09D5/24C09D163/00C08L79/02C08K13/06C08K9/04C08K3/346C08K3/30C08K5/098
Inventor 肖彬
Owner 厦门辉腾盛科技发展有限公司
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