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Water-based epoxy floor paint emulsion and preparation method thereof

A technology of epoxy floor paint and emulsion, which is applied in the direction of coating, etc., can solve the problems of easy precipitation and layering, poor stability of water-based epoxy emulsion, etc., achieve strong adhesion, excellent chemical resistance, and improve physical properties Effect

Inactive Publication Date: 2017-12-01
东莞市同丰高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of water-based epoxy emulsions in the prior art is that the prepared water-based epoxy emulsions have poor stability and are prone to problems such as precipitation and delamination.

Method used

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  • Water-based epoxy floor paint emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Accurately weigh the following raw materials by weight: 100 parts of E-41 epoxy resin, 10 parts of methacrylic acid, 5 parts of hydroxyethyl methacrylate, 15 parts of butyl acrylate, 20 parts of methyl styrene, 0.5 parts of triethyl Amine, 1.5 parts of sodium dodecylbenzene sulfonate, 1.0 parts of alkylphenol ethoxylates.

[0035] The above raw materials were added into deionized water, and emulsified in a four-neck flask for 20 minutes to prepare a pre-emulsion, which was set aside.

[0036] In a 500 mL four-neck flask equipped with a stirrer, a thermometer, a reflux condenser and a constant pressure dropping funnel, add 50 parts of the above-mentioned pre-emulsion.

[0037] While stirring, add 0.5 parts of sodium dodecylbenzenesulfonate and 0.5 parts of alkylphenol polyoxyethylene ether, and raise the temperature to 80°C.

[0038] Add 10 parts of solution A and react for 20 minutes. The solution A contains sodium bicarbonate with a mass concentration of 3% and potass...

Embodiment 2

[0043] Accurately weigh the following raw materials by weight: 100 parts of E-51 epoxy resin, 10 parts of methacrylic acid, 10 parts of hydroxyethyl methacrylate, 20 parts of butyl acrylate, 10 parts of styrene, 0.5 parts of APM-95, 1.5 parts of sodium dodecylbenzenesulfonate, 1.0 parts of fatty alcohol polyoxyethylene ether.

[0044] The above raw materials were added into deionized water, and emulsified in a four-neck flask for 18 minutes to prepare a pre-emulsion, which was set aside.

[0045] In a 500 mL four-neck flask equipped with a stirrer, a thermometer, a reflux condenser and a constant pressure dropping funnel, add 30 parts of the above-mentioned pre-emulsion.

[0046] While stirring, add 0.5 part of sodium dodecylbenzenesulfonate, 0.5 part of fatty alcohol polyoxyethylene ether and 0.5 part of polyvinyl alcohol, and raise the temperature to 80°C.

[0047] Add 10 parts of solution A and react for 18 minutes. The solution A contains potassium persulfate with a mass co...

Embodiment 3

[0052] Accurately weigh the following raw materials by weight: 80 parts of E-44 epoxy resin, 5 parts of methacrylic acid, 5 parts of acrylic acid, 10 parts of hydroxypropyl methacrylate, 20 parts of butyl acrylate, 30 parts of styrene, 0.5 parts Ammonia water, 1.5 parts of sodium dodecylbenzene sulfonate, 1.0 parts of alkylphenol polyoxyethylene ether.

[0053] Add the above-mentioned raw materials into deionized water, and emulsify in a four-neck flask for 22 minutes to prepare a pre-emulsion for later use.

[0054] In a 500 mL four-neck flask equipped with a stirrer, a thermometer, a reflux condenser and a constant pressure dropping funnel, add 30 parts of the above-mentioned pre-emulsion.

[0055] While stirring, add 0.5 parts of sodium dodecylbenzenesulfonate and 0.5 parts of alkylphenol polyoxyethylene ether, and raise the temperature to 80°C.

[0056] Add 10 parts of solution A and react for 22 minutes. The solution A contains sodium bicarbonate with a mass concentratio...

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Abstract

The invention discloses water-based epoxy floor paint emulsion which contains the following substances: epoxy resin, an acrylic monomer, potassium persulfate, sodium bicarbonate, an emulsifier, a pH regulator and deionized water. According to another aspect of the invention, the invention provides a preparation method of the water-based epoxy floor paint emulsion. The preparation method comprises the following steps: S1, adding the epoxy resin, the acrylic monomer, the emulsifier and the pH regulator into the deionized water, and emulsifying so as to obtain pre-emulsion; S2, taking one part of the pre-emulsion, adding the emulsifier, raising the temperature to 80 DEG C, and adding a solution A for reacting for 18-22 minutes; S3, dripping the residual pre-emulsion and a solution B after the emulsion is light blue and the color is not darkened any more, controlling the dripping time to be 2.5-3 hours, and raising the polymerization temperature to 85-88 DEG C; S4, continuing dripping a potassium persulfate solution, and maintaining the temperature for 1-1.5 hours; and S5, cooling to the temperature of 28-32 DEG C, adding the pH regulator to regulate the pH value of the emulsion to be 8-9, and filtering by a filtering net, thereby obtaining the water-based epoxy floor paint emulsion.

Description

technical field [0001] The invention relates to the technical field of floor paint emulsions, in particular to a water-based epoxy floor paint emulsion and a preparation method thereof. Background technique [0002] Epoxy floor paint is usually composed of epoxy resin, solvent, curing agent, pigment and additives. This type of paint contains many types of floor paint, such as solvent-free self-leveling floor paint, anti-corrosion floor paint, wear-resistant Floor paint, anti-static floor paint and water-based floor paint, etc., are mainly characterized by strong adhesion to the cement base, water resistance and other corrosive media, and very good physical and mechanical properties of the coating film. It is suitable for various factories, repair yards, stadiums, parking lots, warehouses, shopping malls and other ground places. Two-component epoxy sealing varnish composed of epoxy resin, modified curing agent, solvent, etc. The concrete base surface has high permeability, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08F220/06C08F220/28C08F220/18C08F212/12C08F212/08C08F2/26C08F2/30C09D151/08C09D5/00
CPCC08F2/26C08F2/30C08F283/10C09D5/00C09D151/08C08F220/1804
Inventor 黄育朋
Owner 东莞市同丰高分子材料有限公司
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