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Fluorosilicone modified acrylic emulsion for weather resistant antifouling paint

A technology modified by acrylate and fluorosilicone, which is applied in the finishing of materials and in the field of building exterior wall coatings, can solve the problems of coating weather resistance, poor anti-fouling performance, failure to meet the requirements of use, unfavorable environmental protection, etc., and achieve good chemical performance. Effects of stability and mechanical stability, low product cost, and ease of construction

Inactive Publication Date: 2007-10-17
广州化工研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The weather resistance and anti-fouling performance of the above-mentioned coatings are not high; or the process is complicated and expensive, which is not conducive to environmental protection; it cannot meet the requirements of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1, a kind of white super-weather-resistant, stain-resistant exterior wall paint resin emulsion, each component weight percent is as follows:

[0051] Deionized water 51.30

[0052] Butyl acrylate 18.40

[0053] Methyl methacrylate 18.40

[0054] Acrylic 1.10

[0055] Vinyltriethoxysilane 1.10

[0056] Trifluoroethyl methacrylate 3.0

[0057] Sodium dodecylbenzenesulfonate 1.88

[0058] OP-10 0.94

[0059] Sodium perfluorononyl ether benzenesulfonate 0.48

[0060] Sodium bicarbonate 0.20

[0061] Sodium persulfate 0.20

[0062] Sodium sulfite 0.20

[0063] Ammonia 2.80

[0064] Dissolve ammonium persulfate and sodium sulfite in water to prepare a 1% to 5% solution for use;

[0065] Add the remaining water, emulsifier, buffer, acrylic monomer, and silicone monomer into the reaction kettle, adjust the stirring speed to 70 rpm, and emulsify for 0.5 hours;

[0066] Release 70% of the pre-emulsion and prepare to add it dropwise. Raise the temperature of...

Embodiment 2

[0069] Embodiment 2, a kind of white with blue light room temperature curing fluorine silicon modified acrylate resin emulsion paint, the weight percentage of each component is as follows:

[0070] Deionized water 50.30

[0071] Butyl acrylate 16.50

[0072] Methyl methacrylate 20.60

[0073] Acrylic 1.20

[0074] Vinyltriethoxysilane 0.80

[0075] Trifluoroethyl methacrylate 2.10

[0076] Sodium dodecylbenzenesulfonate 3.60

[0077] OP-10 1.80

[0078] Sodium dihydrogen phosphate 0.20

[0079] Sodium persulfate 0.20

[0080] Sodium hydroxide 2.80

[0081] Dissolve ammonium persulfate in water to prepare a 2% solution for use;

[0082] Add the remaining water, emulsifier, buffer, acrylic monomer, and silicone monomer into the reaction kettle, adjust the stirring speed to 65 rpm, and emulsify for 0.5 hours;

[0083] Release 70% of the pre-emulsion and prepare to add it dropwise. Raise the temperature of the kettle to 86°C, add half of the dose of initiator, and after ...

Embodiment 3

[0086] Embodiment 3, a kind of resin emulsion with bluish fluorine silicon modified acrylate exterior wall coating, the weight percentage of each component is as follows:

[0087] Deionized water 46.60

[0088] Butyl acrylate 16.90

[0089] Methyl methacrylate 16.00

[0090] Acrylic 2.80

[0091] Vinyltriethoxysilane 2.80

[0092] Trifluoroethyl methacrylate 7.50

[0093] Sodium Lauryl Sulfate 1.90

[0094] OP-10 1.90

[0095] Sodium perfluorononyl ether benzenesulfonate 0.50

[0096] Potassium bicarbonate 0.10

[0097] Potassium persulfate 0.20

[0098] Potassium sulfite 0.20

[0099] Sodium hydroxide 2.80

[0100] Dissolve ammonium persulfate and sodium sulfite in water to prepare a 3% solution for use;

[0101] Add the remaining water, emulsifier, buffer, acrylic monomer, and silicone monomer into the reaction kettle, adjust the stirring speed to 60 rpm, and emulsify for 0.5 hours;

[0102] Release 80% of the pre-emulsion and prepare to add it dropwise. Raise th...

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PUM

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Abstract

The present invention is fluorosilicone modified acrylic emulsion for weather resistant anti-fouling paint, relates to paint resin and aims at providing one kind of environment friendly paint with excellent weather resistance anti-fouling performance. The fluorosilicone modified acrylic emulsion contains methylacrylate, vinyl siloxane and organic fluoric monomer as well as composite emulsifier, pH buffering agent and initiator and is prepared into emulsion. The present invention has very low surface energy, high adhesion, high transparence, etc. and can raise the weather resistance and anti-fouling performance of resin. It has high chemical stability, mechanical stability and good machining performance.

Description

Technical field: [0001] The present invention relates to a fluorine-silicon modified acrylate emulsion for super-weather-resistant and anti-fouling paints, which is mainly used in building exterior wall paints, and can also be used in the finishing of materials such as concrete and gypsum boards. Background technique: [0002] There are many varieties of exterior wall coatings, which can be divided into two categories: water-based and solvent-based coatings. Water-based coatings, such as water-based acrylic, water-based epoxy, water-based polyester and water-based silicon acrylic, have poor weather resistance and stain resistance; solvent-based coatings have high weather resistance and stain resistance, but their solvent consumption is large, High toxicity, poor air permeability of the coating, easy to peel off. [0003] In order of increasing weather resistance and stain resistance, they are styrene-acrylic resin, pure acrylic resin, silicone-acrylic resin, and fluorocarbo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C09D133/12C09D5/16
Inventor 吴文莉叶家灿
Owner 广州化工研究设计院有限公司
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