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Epoxy modified acrylic emulsion and preparation method thereof

A technology of acrylic emulsion and epoxy modification, which is applied in epoxy resin coatings, coatings, polyurea/polyurethane coatings, etc., to achieve the effects of good elasticity, low curing shrinkage, and improved stability

Active Publication Date: 2018-11-06
CHANGSHA YUANPENG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of water-based acrylic emulsion in high-grade industrial coatings has been greatly limited. In order to solve this problem, it must be modified

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) To prepare three components A, B, and C, the dosage of each raw material (parts by mass / KG) is:

[0026] Component A: deionized water 70, sodium lauryl sulfate 0.6, alkylphenol polyoxyethylene ether (OP-10) 0.4, bisphenol A epoxy resin (E44) 6, acrylamide 3, styrene 60, Butyl acrylate 50, methyl methacrylate 35, hydroxyethyl methacrylate 25, glycidyl methacrylate 2, ethylene glycol dimethacrylate 0.5, methacrylic acid 6; component B: deionized water 90, sodium bicarbonate 0.3, sodium lauryl sulfate 0.12, alkylphenol polyoxyethylene ether (OP-10) 0.08; component C: deionized water 65, potassium persulfate 1.8;

[0027] Add the above raw materials into the corresponding mixing tank in turn, and the speed of the disperser is 800r / min, until each component forms a homogeneous mixture, put it in the designated position, and wait for use;

[0028] (2) Put all the component B (90.5KG) into the reactor, start the mixer at a speed of 180r / min, then add component A (25.85KG)...

Embodiment 2

[0035] (1) To prepare three components A, B, and C, the dosage of each raw material (parts by mass / KG) is:

[0036] Component A: deionized water 70, sodium lauryl sulfate 0.6, sodium allyloxy hydroxypropane sulfonate 0.4, hydrogenated bisphenol A epoxy resin (YDH3000) 6, N-methylolacrylamide 3, benzene Ethylene 60, methyl acrylate 30, cyclohexyl acrylate 20, butyl methacrylate 35, hydroxypropyl methacrylate 25, glycidyl methacrylate 2.5, acrylic acid 6; component B: deionized water 90, phosphoric acid Sodium dihydrogen 0.3, sodium lauryl sulfate 0.12, allyloxy hydroxypropanesulfonic acid 0.08; component C: deionized water 65, ammonium persulfate 1.8;

[0037] Add the above raw materials into the corresponding mixing tank in turn, and the speed of the disperser is 600r / min, until each component forms a homogeneous mixture, put it in the designated position, and wait for use;

[0038] (2) Put all the component B (90.5KG) into the reactor, start the mixer at a speed of 150r / min,...

Embodiment 3

[0045] (1) To prepare three components A, B, and C, the dosage of each raw material (parts by mass / KG) is:

[0046] Component A: deionized water 80, sodium allyloxy hydroxypropane sulfonate 2, bisphenol F epoxy resin (F51) 10, N-butoxymethacrylamide 5, styrene 50, butyl acrylate 30, Lauryl acrylate 30, methyl methacrylate 35, hydroxyethyl methacrylate 35, ethylene glycol dimethacrylate 3, acrylic acid 3; component B: deionized water 100, sodium dihydrogen phosphate 1.5, allyl Oxyhydroxypropanesulfonic acid 1; C component: deionized water 90, sodium persulfate 2.5;

[0047] Add the above raw materials into the corresponding mixing tank in turn, and the speed of the disperser is 500r / min, until each component forms a homogeneous mixture, put it in the designated position, and wait for use;

[0048] (2) Put all the component B (102.5KG) into the reactor, start the mixer at a speed of 200r / min, then add component A (56.6KG) with a mass ratio of 20% to the reactor, stir evenly, an...

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Abstract

The invention discloses an epoxy modified acrylic emulsion and a preparation method thereof. The epoxy modified acrylic emulsion comprises three components A, B and C, wherein the component A comprises deionized water, an emulsifier, epoxy resin, an acylamino compound, styrene, acrylate, methacrylate and (meth)acrylic acid; the component B comprises deionized water, a buffer agent and an emulsifier; the component C comprises deionized water and an initiator; in the emulsion system, a reducing agent, protective glue, a functional monomer, a neutralizing agent and the like can also be included.The prepared emulsion has the characteristics of fine granules, good elasticity, light resistance, weather resistance, water resistance and the like, and can be applied to waterborne industrial coating, waterborne building coating and waterborne wood coating. The waterborne coating prepared from the emulsion provided by the invention has the characteristics of strong adhesion, high mechanical properties, low curing shrinkage, good water / oil resistance, good temperature change resistance, good heat resistance, excellent aging resistance, excellent electrical insulation, excellent chemical resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of resin and chemical synthesis, and relates to an epoxy-modified acrylic emulsion and a preparation method thereof. Background technique [0002] As the film-forming base material of coatings, acrylic resin has the advantages of light color, color retention, gloss retention, weather resistance, corrosion resistance and pollution resistance. Has been widely used in metal, plastic and wood and other substrates; metals include iron, aluminum, copper, zinc, stainless steel, etc.; plastics include PP, HDPE, PC, ABS, PVC, HIPS, PET, etc.; coated products include automobiles, Trains, airplanes, construction machinery, household appliances, hardware products, toys, furniture, etc. In recent years, the development of acrylic resin coatings at home and abroad is very fast, accounting for more than 1 / 3 of the coatings at present, and acrylic resins occupy an important position in the film-forming resins of coatings. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/14C08F220/20C08F220/18C08F220/06C08F220/56C08F220/58C08F220/32C08F222/14C08F2/26C08F2/30C09D125/14C09D163/00C09D175/04C09D133/14C09D133/12
CPCC09D125/14C09D133/12C09D133/14C09D163/00C09D175/04C08F2/26C08F2/30C08F212/08C08F220/14C08F220/20C08F220/58C08F220/1804C08F220/1812C08F222/102C08F220/06C08F220/325C08F220/56C08F220/1806
Inventor 吕运凤雷洪素其他发明人请求不公开姓名
Owner CHANGSHA YUANPENG CHEM TECH
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