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Fluorine monomer modified styrene-acrylic emulsion and preparation method thereof

A technology of styrene-acrylic emulsion and fluorine monomer, which is applied in the direction of coating, etc., can solve the problems of easy flocculation, poor stability of emulsion polymerization, and limitation of waterproof performance of silicone-modified acrylic emulsion film, and achieve great market development potential , Excellent acid resistance, good low temperature flexibility

Active Publication Date: 2014-01-01
ZHEJIANG JIUBEN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water resistance of the silicone-modified acrylic emulsion film increases with the increase of the amount of silicone, but with the increase of the amount of silicone, the polymerization stability of the emulsion becomes poor, and flocculation is easy to occur during the polymerization process
Therefore, the waterproof performance of the silicone-modified acrylic emulsion film is limited

Method used

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  • Fluorine monomer modified styrene-acrylic emulsion and preparation method thereof
  • Fluorine monomer modified styrene-acrylic emulsion and preparation method thereof
  • Fluorine monomer modified styrene-acrylic emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of fluoromonomer modified styrene-acrylic emulsion, it is made up of the component of following mass percentage:

[0027] Fluoroalkyl Methacrylate 1.0%,

[0028] Methyl Methacrylate 5.0%,

[0029] Sodium dodecylbenzenesulfonate 0.5%,

[0030] Fatty alcohol polyoxyethylene ester 0.5%,

[0031] Styrene 20%,

[0032] Butyl Acrylate 25%,

[0033] Alkylphenol ethoxylates 1.0%,

[0034] Sodium bicarbonate 0.1%,

[0035] Potassium persulfate 0.4%,

[0036] Ammonia 0.5%,

[0037] The rest is water.

[0038] The preparation method is as follows:

[0039] (1) Mix 4 / 5 of the formula amount of water with the formula amount of methyl methacrylate, sodium dodecylbenzenesulfonate, fatty alcohol polyoxyethylene ester, styrene, butyl acrylate, alkylphenol polyoxyethylene Mix ether with strong stirring to emulsify into pre-emulsion;

[0040] (2) Potassium persulfate and sodium bicarbonate of formula quantity are dissolved in the water of remaining 1 / 5 formula quantity t...

Embodiment 2

[0047] A kind of fluoromonomer modified styrene-acrylic emulsion, it is made up of the component of following mass percentage:

[0048] Fluoroalkyl Methacrylate 2.0%,

[0049] Methyl Methacrylate 6.0%,

[0050] Sodium dodecylbenzenesulfonate 0.2%,

[0051] Fatty alcohol polyoxyethylene ester 0.3%,

[0052] Styrene 21%,

[0053] Butyl Acrylate 22%,

[0054] Alkylphenol Ethoxylates 3.0%,

[0055] Sodium bicarbonate 0.3%,

[0056] Potassium persulfate 1.0%,

[0057] Ammonia 0.2%,

[0058] The rest is water.

[0059] The preparation method is as follows:

[0060] (1) Mix 4 / 5 of the formula amount of water with the formula amount of methyl methacrylate, sodium dodecylbenzenesulfonate, fatty alcohol polyoxyethylene ester, styrene, butyl acrylate, alkylphenol polyoxyethylene Mix ether with strong stirring to emulsify into pre-emulsion;

[0061] (2) Potassium persulfate and sodium bicarbonate of formula quantity are dissolved in the water of remaining 1 / 5 formula quantity t...

Embodiment 3

[0067]A kind of fluoromonomer modified styrene-acrylic emulsion, it is made up of the component of following mass percentage:

[0068] Fluoroalkyl Methacrylate 4.0%,

[0069] Methyl Methacrylate 7.0%,

[0070] Sodium dodecylbenzenesulfonate 0.8%,

[0071] Fatty alcohol polyoxyethylene ester 0.2%,

[0072] Styrene 22%,

[0073] Butyl Acrylate 23%,

[0074] Alkylphenol ethoxylates 2.0%,

[0075] Sodium bicarbonate 0.5%,

[0076] Potassium persulfate 0.7%,

[0077] Ammonia 0.8%,

[0078] The rest is water.

[0079] The preparation method is as follows:

[0080] (1) Mix 4 / 5 of the formula amount of water with the formula amount of methyl methacrylate, sodium dodecylbenzenesulfonate, fatty alcohol polyoxyethylene ester, styrene, butyl acrylate, alkylphenol polyoxyethylene Mix ether with strong stirring to emulsify into pre-emulsion;

[0081] (2) Potassium persulfate and sodium bicarbonate of formula quantity are dissolved in the water of remaining 1 / 5 formula quantity to...

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Abstract

The invention discloses a fluorine monomer modified styrene-acrylic emulsion which comprises the following components by weight: 1 to 6 percent of methacrylic acid fluorine alkyl ester, 5 to 8 percent of methyl methacrylate, 0.2 to 0.8 percent of sodium doodecyl benzene sulfonate, 0.2 to 25 percent of fatty alcohol polyethenoxy ester, 20 to 22 percent of styrene, 22 to 25 percent of butyl acrylate, 1 to 3 percent of alkylphenol polyoxyethylene ether, 0.1 to 0.5 percent of sodium bicarbonate, 0.3 to 1 percent of potassium persulfate, 0.2 to 0.8 percent of ammonia water, and water in balancing amount. The invention further discloses a preparation method of the fluorine monomer modified styrene-acrylic emulsion. The fluorine monomer modified styrene-acrylic emulsion utilizes the principle that the C-F bond energy is larger than the Si-O bond energy, as well as the excellent physical and chemical characteristics of fluorine atoms, so as to achieve a higher comprehensive performance; and the fluorine monomer modified styrene-acrylic emulsion has the advantages of excellent acid resistance, alkaline resistance, corrosion resistance and weatherability, good low-temperature flexibility, hydrophobicity, stain resistance, and the like.

Description

technical field [0001] The invention relates to a fluoromonomer-modified styrene-acrylic emulsion and a preparation method thereof, belonging to the technical field of architectural coatings. Background technique [0002] The introduction of fluorine monomers into water-based resins is one of the current research hotspots. Compared with styrene-acrylic emulsion, fluorine compounds have more excellent properties such as acid resistance, alkali resistance, corrosion resistance, weather resistance and pollution resistance. The principle of modifying acrylic emulsion with silicone is based on the fact that the Si-O bond energy is much greater than the C-C bond energy. The modified acrylic polymer produces a three-dimensional network crosslinked structure, thereby improving its water resistance and UV resistance. There are many literature reports and practical applications of silicon-modified acrylic emulsions. The water resistance of the silicone-modified acrylic emulsion film...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F212/08C08F220/22C08F220/14C08F2/26C08F2/30C09D125/14
Inventor 郭文录
Owner ZHEJIANG JIUBEN BIOCHEM
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