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Waterborne epoxy paint for protective treatment of cement concrete basal plane, and preparation method of waterborne epoxy paint

A technology of water-based epoxy coatings and water-based epoxy resins, which is applied in epoxy resin coatings, fire-resistant coatings, anti-fouling/underwater coatings, etc., and can solve problems such as flammability and explosion of organic solvents, environmental pollution, and performance gaps. Achieve the effects of excellent hardness and impact resistance, cost reduction, and excellent heat resistance

Inactive Publication Date: 2016-12-14
NANXIONG MATERIAL PRODION BASE OF CHINESE ACADEMY OF SCI GUANGZHOU CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Epoxy coatings are adhesive materials with excellent mechanical properties, anti-corrosion properties, adhesion and chemical stability, and are widely used in anti-corrosion coatings, industrial floor coatings, etc., but most of the leading products are solvent-based, and the organic solvents contained Flammable, explosive, volatile, smelly, cause air pollution when used, and have more or less toxicity, which is a long-standing problem of environmental pollution
In the past 10 years, the pressure of public opinion to protect the earth's environment has been increasing day by day. Some developed countries have formulated fire protection regulations and solvent regulations. These factors have prompted researchers from all over the world to spend considerable energy on the development of corresponding products. Compared with solvent-based products, there is still a big gap in its performance. Therefore, developing new high-performance water-based epoxy coatings and using them to gradually replace solvent-based products has important practical significance and broad application prospects. It is the foundation of our country's economic construction. Urgent request

Method used

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  • Waterborne epoxy paint for protective treatment of cement concrete basal plane, and preparation method of waterborne epoxy paint
  • Waterborne epoxy paint for protective treatment of cement concrete basal plane, and preparation method of waterborne epoxy paint
  • Waterborne epoxy paint for protective treatment of cement concrete basal plane, and preparation method of waterborne epoxy paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Mix 100g of E-03 epoxy resin, 3g of 2-aminoethanesulfonic acid, 40g of deionized water and 1g of surfactant F8a into a three-necked bottle, and react for 5 hours at a temperature of 25°C. A water-based epoxy resin with a solid content of 70% can be obtained.

[0042] (2) Disperse 10g of modified water-based epoxy resin synthesized in step (1), 100g of E-03 epoxy resin, 0.1g of defoamer BYK06660.1g, 10g of propylene oxide butyl ether, and 0.8g of leveling agent EFKA3777 Agent BYK-P104 0.05g, titanium dioxide 16g, kaolin 20g, put in a strong mixer and mix evenly; then add 2g of DA-134 ketimine curing agent, mix evenly with a strong mixer, and get the water-based cement concrete base surface protection treatment. epoxy paint. After curing at room temperature for 14 days, measure the hardness with the standard GB / T6739-1996 (pencil hardness test method), the pencil hardness of the floor coating is 2H; use the standard GB / T 1768-2006 to measure the wear resistance, the ...

Embodiment 2

[0044](1) 100g E-51 epoxy resin, 14g 2-aminoethanesulfonic acid, 100g deionized water and 2g surfactant L-44 are mixed and dropped into a three-necked bottle, and reacted for 6 hours at a temperature of 30°C. Complete can obtain the waterborne epoxy resin that solid content is 50%.

[0045] (2) 30g of modified water-based epoxy resin synthesized in step (1), 100g of E-51 epoxy resin, 0.8g of defoamer BYK066, 5g of C12-C14 fatty alcohol glycidyl ether, and 1.6g of leveling agent EFKA3777 , dispersant BYK163 8g, carbon black 10g, talcum powder 150g, put in a strong mixer and mix evenly; then add 12g of diethylenetriamine, mix evenly with a strong mixer, and then get the water-based epoxy coating for cement concrete base surface protection treatment. After curing at room temperature for 14 days, the pencil hardness of the floor coating obtained by testing is 3H; the abrasion resistance is 0.023, and the impact resistance is grade II, and the 1000g steel ball has no cracks and no ...

Embodiment 3

[0047] (1) Mix 100g E-54 epoxy resin, 34g 2-aminoethanesulfonic acid, 150g deionized water and 2g surfactant tetrabutylammonium bromide into a three-necked bottle, and react at a temperature of 35°C for 6 Hours, the reaction is completed to obtain a water-based epoxy resin with a solid content of 45%.

[0048] (2) 30g of modified water-based epoxy resin synthesized in step (1), 100g of E-54 epoxy resin, 1.2g of polysiloxane defoamer BYK066, 10g of butanol, 0.5g of leveling agent EFKA3777, Dispersant BYK163 10g, chrome yellow 2g, quartz sand 40g, 2-methylimidazole 1g, mix well in a strong mixer; then add N-AEP curing agent 32g, mix well with a strong mixer, and get the cement concrete base surface protection Treatment with water-based epoxy coatings. After curing at room temperature for 14 days, the pencil hardness of the floor coating obtained by testing is 3H; the abrasion resistance is 0.021, and the impact resistance is grade II, and the 1000g steel ball has no cracks and ...

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Abstract

The invention belongs to the technical field of waterborne epoxy paints, and discloses a waterborne epoxy paint for protective treatment of a cement concrete basal plane, and a preparation method and application of the waterborne epoxy paint. The paint provided by the invention is applied to protective treatment of the cement concrete basal plane, and the obtained ground has excellent hardness, wear resistance, contamination resistance and heat resistance. The paint provided by the invention comprises the following components in parts by mass: 100 parts of epoxy resin, 10 to 100 parts of 2-taurine modified waterborne epoxy resin, 2 to 80 parts of a curing agent, 0.1 to 3 parts of a defoaming agent, 0 to 20 parts of a reactive diluent, 0.5 to 2 parts of a flatting agent, 0.05 to 10 parts of a dispersing agent, 2 to 16 parts of pigment, 20 to 150 parts of fillers and 0 to 5 parts of an accelerant. A preparation method of the 2-taurine modified waterborne epoxy resin comprises the steps of mixing epoxy resin, 2-taurine, water and a surfactant and enabling a reaction at the temperature of 25 to 60 DEG C for 3 to 10 hours to obtain the 2-taurine modified waterborne epoxy resin.

Description

technical field [0001] The invention belongs to the technical field of water-based epoxy coatings, and in particular relates to a water-based epoxy coating for the protection treatment of cement concrete base surfaces, a preparation method and an application thereof. Background technique [0002] With the rapid growth of national infrastructure, water conservancy projects, road traffic, municipal engineering and other engineering fields have increasingly high requirements for the durability and safety of concrete buildings, and at the same time, more and more attention has been paid to environmental protection control measures in the engineering construction process. [0003] Concrete is a porous material with a pore size distribution ranging from nanometers to millimeters. CO in the atmosphere 2 Through these pores, it enters the interior of the concrete and undergoes a carbonation reaction with the alkaline substances in the concrete. The harm of carbonization to concrete...

Claims

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Application Information

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IPC IPC(8): C09D163/02C09D163/00C09D5/16C09D7/12C08G59/14
CPCC09D163/00C08G59/1483C08L2201/08C08L2205/025C08L2205/03C09D5/1662C09D5/18C09D7/61C09D7/63C09D7/65C08L63/00C08K13/02C08K2003/2241C08K3/346C08K3/04C08K3/34C08K3/36
Inventor 刘伟区何莎王政芳
Owner NANXIONG MATERIAL PRODION BASE OF CHINESE ACADEMY OF SCI GUANGZHOU CHEM
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