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Terpolymer emulsion containing 1-vinyl iminazole and preparation method thereof

A technology of terpolymer and vinylimidazole, which is applied in the field of anticorrosion of metal materials and coatings, can solve the problems of lack of emulsion research, achieve various operation modes, facilitate heat transfer and continuous production, and improve water resistance

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

Patent CN200710022759.X discloses a preparation method of vinyl chloride-vinyl acetate-vinyl alcohol copolymer to prepare a high-performance vinyl chloride-vinyl acetate-vinyl alcohol copolymer emulsion, but it uses organic solvents such as acetone and MEK ; Patent CN200810194879.2 discloses a preparation method of vinyl chloride-vinyl acetate-maleic acid copolymer, but in the production process, only 10% of maleic acid participates in copolymerization, and the remaining 90% of maleic acid can't get together
[0005] At present, apart from a few domestic manufacturers using microsuspension polymerization to produce vinyl chloride-vinyl acetate copolymer resins with low vinyl acetate content, there is no manufacturer using emulsion copolymerization to produce vinyl chloride-vinyl acetate with good solubility for coatings and inks. Copolymer resin, and research on vinyl chloride-vinyl acetate-1-vinylimidazole ternary copolymer emulsion is even less

Method used

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  • Terpolymer emulsion containing 1-vinyl iminazole and preparation method thereof
  • Terpolymer emulsion containing 1-vinyl iminazole and preparation method thereof
  • Terpolymer emulsion containing 1-vinyl iminazole and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. The components are proportioned according to mass percentage:

[0030]

[0031] 2. Preparation method:

[0032] (1) Add deionized water, vinyl acetate, diethylenetriamine, 50% non-ionic emulsifier, 50% ammonium persulfate and 50% vinyl chloride into the reaction kettle, and rapidly raise the temperature to 65°C-100°C , at the same time, continuously stirred at a stirring speed of 1000-1500r / min, kept warm for 4-15 hours, and obtained vinyl chloride-vinyl acetate emulsion;

[0033] (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 1-vinylimidazole dropwise, keep warm for 4-15 hours after the dropwise addition, and add hydroquinone;

[0034] (3) The resulting product is filtered through an 800-mesh filter to obtain a terpolymer emulsion containing a nonionic emulsifier.

[0035] Three, the beneficial effect of this embodiment:

[0036...

Embodiment 2

[0038] 1. Components are proportioned according to mass percentage

[0039]

[0040] Two, preparation method is identical with embodiment 1.

[0041] Three, the beneficial effect of this embodiment:

[0042] The average particle diameter of the emulsion particle concentration of the polymer emulsion measured by a nanometer particle size analyzer is about 6.7nm; the measured solid content is 21.4%; the water resistance is 72h without whitening and foaming.

Embodiment 3

[0044] 1. The components are proportioned according to mass percentage:

[0045]

[0046]

[0047] Two, preparation method is identical with embodiment 1.

[0048] Three, the beneficial effect of this embodiment:

[0049] 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 25.4%; the water resistance is 72 hours without whitening and foaming.

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Abstract

The invention discloses a terpolymer emulsion containing 1-vinyl iminazole. The emulsion is composed of the following components in percentage by mass: 40-60% of vinyl chloride, 10-25% of vinyl acetate, 1-10% of 1-vinyl iminazole, 2-5% of nonionic 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 1-vinyl iminazole has the advantages of excellent stability, high paint film density, small particle size, favorable water resistance and favorable acid / alkali resistance. By adopting the vinyl chloride / vinyl acetate / 1-vinyl iminazole monomer copolymerization technique, the method is simple to operate, has the advantages of controllable reaction speed and low cost, and conforms to the environment-friendly principle. The invention also discloses a preparation method of the terpolymer emulsion containing 1-vinyl iminazole.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a terpolymer emulsion containing 1-vinylimidazole and a preparation method thereof. The invention is specifically applied to the field of anticorrosion of metal materials. Background technique [0002] Polyvinyl chloride has the advantages of good mechanical properties, flame retardancy, and chemical corrosion resistance, and is widely used in building materials, wires and cables, agricultural films, and artificial leather. However, the solubility of polyvinyl chloride in low polar solvents is poor, and the coating adhesion is not strong; at the same time, perchlorethylene resin is easy to decompose when heated, and it has begun to decompose slowly at 80-90 ° C, resulting in the color of the paint film after decomposition. Deeper, poorer toughness, brittleness, and reduced corrosion resistance. Therefore, the method of copolymerization with other monomers is often used to ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F214/06C08F218/08C08F226/06C08F2/30
Inventor 高延敏姜文龙周建军陈亮左银泽邱广庭
Owner RUNTAI CHEM TAIXING CO LTD