Terpolymer emulsion containing non-ionic emulsifier and preparation method therefor

A technology of non-ionic emulsifier and terpolymer, which is applied in the field of anticorrosion of metal materials and coatings. It can solve the problems of affecting the anticorrosion performance of coatings, poor coating film compactness, and decreased coating film adhesion. It can achieve easy control of reaction speed and durability Good acid-base properties and high film density

Active Publication Date: 2015-12-02
RUNTAI CHEM TAIXING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent CN101250365 selects a phosphate group, and polymerizes with acrylate to obtain an emulsion that inhibits flash rust. However, the degree of cross-linking of the emulsion particles is not enough, and the salt spray resistance can only reach several hours. Moreover, The market price of phosphate ester is relatively high, uneconomical and difficult for industrialization
[0006] Chinese patent CN201210058583.4 selects vinyl chloride-acrylic ester emulsion to polymerize vinyl acetate with it to obtain a ternary copolymer emulsion. However, the addition of vinyl acetate is not conducive to the adhesion of the paint on the surface of the metal substrate, and will Seriously lead to a decrease in the adhesion of the coating film, so that it affects the anti-corrosion performance of the coating. Moreover, the compactness of the coating film is poor, which increases the chance of the base material in contact with oxygen and water

Method used

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  • Terpolymer emulsion containing non-ionic emulsifier and preparation method therefor
  • Terpolymer emulsion containing non-ionic emulsifier and preparation method therefor
  • Terpolymer emulsion containing non-ionic emulsifier and preparation method therefor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. The components are proportioned according to mass percentage:

[0035]

[0036] 2. Preparation method:

[0037] (1) Add deionized water, acrylate, diethylenetriamine, 50% nonionic emulsifier, 50% ammonium persulfate and 50% vinyl chloride to the reactor, and rapidly heat up to 65°C-100°C, At the same time, continuously stir at a stirring speed of 1000-1500r / min, keep warm for 4-15 hours, and obtain a vinyl chloride-acrylate emulsion;

[0038] (2) Control the temperature of the reactor at 65°C to 100°C, and add the remaining 50% of vinyl chloride, 50% of ammonium persulfate and 50% of Nonionic emulsifier, and slowly add 4-aminostyrene dropwise, keep warm for 4-15 hours after the dropwise addition, and add hydroquinone;

[0039] (3) The resulting product is filtered through an 800-mesh filter to obtain a terpolymer emulsion containing a nonionic emulsifier.

[0040] Three, the beneficial effect of this embodiment:

[0041] The average particle diameter of the em...

Embodiment 2

[0043] 1. Components are proportioned according to mass percentage

[0044]

[0045]

[0046] Two, preparation method is identical with embodiment 1.

[0047] Three, the beneficial effect of this embodiment:

[0048] The average particle diameter of the emulsion particle concentration of the polymer emulsion measured by a nanoparticle size analyzer is about 6.7nm

[0049] Right; the measured solid content is 28.4%; the water resistance is 72 hours without whitening or blistering.

Embodiment 3

[0051] 1. The components are proportioned according to mass percentage:

[0052]

[0053] Two, preparation method is identical with embodiment 1.

[0054] Three, the beneficial effect of this embodiment:

[0055] The average particle diameter of the emulsion particle concentration of the polymer emulsion measured by a nanometer particle size analyzer is about 3.5nm; the measured solid content is 21.4%; the water resistance is 70h without whitening or foaming.

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Abstract

The invention discloses a terpolymer emulsion containing a non-ionic emulsifier. The emulsion comprises the components in percentage by weight: 40-60% of chloroethylene, 10-25% of acrylate, 1-10% of 4-amino styrene, 2-5% of the non-ionic emulsifier, 1-5% of diethylenetriamine, 0.1-2% of hydroquinone, 0.1-3% of ammonium persulfate and 5-15% of deionized water. The terpolymer emulsion containing the non-ionic emulsifier disclosed by the invention is excellent in stability, high in film compactness, relatively small in emulsion particle size and good in water resistance and acid and alkali resistance; by adopting a monomer copolymerization process of chloroethylene, acrylate and 4-amino styrene, the emulsion not only is simple and easy to operate, but also is easy to control the reaction speed and low in cost, and meets the environmental-friendly principle. The invention further discloses a preparation method for the terpolymer emulsion containing the non-ionic emulsifier.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a terpolymer emulsion containing a nonionic emulsifier and a preparation method thereof. The invention is specifically applied to the field of anticorrosion of metal materials. Background technique [0002] Water-based coatings were first widely used in the field of construction, and then gradually promoted for industrial corrosion protection of steel structures including marine engineering. Compared with traditional coatings, water-based anti-corrosion coatings have fast drying, high production efficiency, and excellent material properties. They have achieved "zero emissions for sustainable development" and become one of the development directions of the coatings industry today. [0003] Because the main chain of vinyl chloride-acrylate polymer is a saturated structure, the coating with vinyl chloride-acrylate polymer as film-forming substance has excellent weather resistance and outdoo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F214/06C08F220/10C08F212/14C08F220/18C08F2/30
Inventor 高延敏姜文龙周建军
Owner RUNTAI CHEM TAIXING CO LTD
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