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Aqueous exterior wall coating with temperature control mildew resistance and preparation method of coating

A technology for exterior wall coatings and performance, applied in the direction of anti-fouling/underwater coatings, anti-corrosion coatings, coatings, etc., can solve the problems of reduced service life of coatings, achieve long service life, improve construction performance, and good weather resistance Effect

Active Publication Date: 2019-04-12
ZIBO VOCATIONAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in natural environments such as sun and rain, the antifungal agent in the exterior wall coating will continue to be released regardless of the temperature, so that the service life of the coating will be rapidly reduced.

Method used

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  • Aqueous exterior wall coating with temperature control mildew resistance and preparation method of coating
  • Aqueous exterior wall coating with temperature control mildew resistance and preparation method of coating
  • Aqueous exterior wall coating with temperature control mildew resistance and preparation method of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) A kind of isopropylacrylamide modified acrylate emulsion, the preparation steps are as follows:

[0046]First add 10 parts of N-isopropylacrylamide, 60 parts of butyl acrylate, and 2 parts of acrylic acid into a four-necked bottle, stir well, and preheat to 70°C; then add 100 parts of deionized water, 1 part of allyloxy Add propyl propyl alkylphenol polyether and 1 part of allyl dialkyl sulfosuccinate into a four-necked flask, keep the temperature at 70°C, blow nitrogen, and emulsify for 2 hours; then add 2 parts of persulfuric acid Mix ammonium and 20 parts of deionized water evenly, add dropwise to the four-necked bottle, and finish dropping in 2 hours; after the dropwise addition, raise the temperature to 90°C, keep it for 70 minutes, and cool to room temperature; adjust the pH value to 7 with ammonia water, An isopropylacrylamide-modified acrylate emulsion was obtained.

[0047] (2) a silicone modified acrylate emulsion, the preparation steps are as follows:

...

Embodiment 2

[0059] (1) A kind of isopropylacrylamide modified acrylate emulsion, the preparation steps are as follows:

[0060] First add 15 parts of N-isopropylacrylamide, 60 parts of butyl acrylate, and 2 parts of acrylic acid into a four-necked bottle, stir well, and preheat to 70°C; then add 100 parts of deionized water, 1 part of allyloxy Add propyl propyl alkylphenol polyether and 1 part of allyl dialkyl sulfosuccinate into a four-necked flask, keep the temperature at 80°C, blow nitrogen, and emulsify for 2 hours; then add 2 parts of persulfuric acid Mix ammonium and 20 parts of deionized water evenly, add dropwise to the four-necked bottle, and finish dropping in 2 hours; after the dropwise addition, raise the temperature to 90°C, keep it for 70 minutes, and cool to room temperature; adjust the pH value to 7 with ammonia water, An isopropylacrylamide-modified acrylate emulsion was obtained.

[0061] (2) a silicone modified acrylate emulsion, the preparation steps are as follows: ...

Embodiment 3

[0073] (1) A kind of isopropylacrylamide modified acrylate emulsion, the preparation steps are as follows:

[0074] First add 15 parts of N-isopropylacrylamide, 80 parts of butyl acrylate, and 7 parts of acrylic acid into a four-necked bottle, stir well, and preheat to 70°C; then add 100 parts of deionized water, 1 part of allyloxy Add propyl propyl alkylphenol polyether and 1 part of allyl dialkyl sulfosuccinate into a four-necked flask, keep the temperature at 80°C, blow nitrogen, and emulsify for 2 hours; then add 2 parts of persulfuric acid Mix ammonium and 20 parts of deionized water evenly, add dropwise to the four-necked bottle, and finish dropping in 2 hours; after the dropwise addition, raise the temperature to 90°C, keep it for 70 minutes, and cool to room temperature; adjust the pH value to 7 with ammonia water, An isopropylacrylamide-modified acrylate emulsion was obtained.

[0075] (2) a silicone modified acrylate emulsion, the preparation steps are as follows: ...

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Abstract

The invention belongs to the field of coatings, and particularly relates to an aqueous exterior wall coating with temperature control mildew resistance and a preparation method of the coating. The coating comprises the following components: an isopropyl acrylamide modified acrylate emulsion, an organosilicone modified acrylate emulsion, isothiazolinone, lightweight calcium carbonate, talc powder,a dispersing agent, a levelling agent and deionized water, wherein the isopropyl acrylamide modified acrylate emulsion is prepared from the following components: N-isopropyl acrylamide, butyl acrylate, acrylic acid, allyloxypropyl alkyl phenol polyether, a dialkyl sulfosuccinate salt of allyl, ammonium persulfate and deionized water. The coating provided by the invention is a novel exterior wall anti-mildew coating capable of controlling a release speed of an anti-mildew agent at different temperatures, has high mildew resistance, good weather resistance, light and thermal stability, chemicalstability, stain resistance, wash resistance, corrosion resistance and self-cleaning performance, and also has gloss and fullness. The invention also provides the preparation method of the coating.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a water-based exterior wall coating with temperature control and anti-mildew properties and a preparation method thereof. Background technique [0002] At this stage, green, environmentally friendly and cost-effective water-based coatings have become a key research field for the development of the coatings industry. However, traditional water-based exterior wall coatings need to add a large amount of surfactants during the preparation of polymer emulsions so that the polymerized monomers and synthesized polymers can be uniformly dispersed in the aqueous solution. These small molecules of surfactants that cannot be separated from the emulsion provide nutrients for the growth and reproduction of various harmful microorganisms; the metabolic substances such as enzymes and organic acids produced by these harmful microorganisms during the metabolic process will destroy the organic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D133/12C09D5/14C09D5/16C09D5/08C08F220/18C08F220/54C08F220/06C08F220/14C08F230/08
CPCC08F2/26C08F2/30C08F220/14C08F220/18C08F220/1804C08K2003/265C08L2201/08C09D5/08C09D5/14C09D5/1668C09D5/1687C09D133/08C08L43/04C08K13/02C08K3/26C08K3/34C08K5/47C08F220/54C08F220/06C08F230/08
Inventor 曲园园
Owner ZIBO VOCATIONAL INST
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