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Preparation method of water-resisting waterborne acrylic coating

A water-based acrylic and paint technology, applied in the field of paint, can solve problems such as poor water resistance of paint, falling paint, poor adhesion, etc.

Inactive Publication Date: 2018-04-17
合肥林邦门业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, various environmental protection coatings emerge in endlessly. The existing environmental protection coatings are usually prone to poor adhesion during use, which leads to the coating falling off. Especially in the rainy season in the south, the air is humid, the water resistance of the coating is poor, and the coating peels off seriously. ,waiting to be solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method for water-resistant water-based acrylic paint, comprising the steps of:

[0021] S1. Mix 20g poly-β-hydroxybutyric acid and 150g glycerol evenly, add 7g chitosan and stir for 35min, add 50g hydroxyapatite and continue stirring for 4h, the stirring temperature is 60°C, cool, filter, add 120g absolute ethanol Stir evenly, heat up to 80°C, add 40g of polyethylene glycol and stir for 10 minutes, evaporate and recover absolute ethanol, wash the microsphere product with water, and dry to obtain the first material;

[0022] S2. Mix 100g of deionized water, 4g of thickener, 1.5g of defoamer, 4g of dispersant, and 2g of wetting agent evenly, then add 25g of fumed silica, 4g of wollastonite powder, and 4g of the first material and stir for 15 minutes. Stirring speed is 3000r / min, obtains the second material;

[0023] S3, add 45g nano acrylic emulsion, 6g epoxy resin, 4g leveling agent, 3g sodium carboxymethyl cellulose to 115g of the second material and stir...

Embodiment 2

[0026] A preparation method for water-resistant water-based acrylic paint, comprising the steps of:

[0027] S1. Mix 24g poly-β-hydroxybutyric acid and 130g glycerin evenly, add 13g chitosan and stir for 25min, add 60g hydroxyapatite and continue stirring for 3h, the stirring temperature is 70°C, cool, filter, add 100g absolute ethanol Stir evenly, heat up to 86°C, add 20g of polyethylene glycol and stir for 20 minutes, evaporate and recover absolute ethanol, wash the microsphere product with water, and dry to obtain the first material;

[0028] S2. Mix 100g of deionized water, 2g of thickener, 2.5g of defoamer, 2g of dispersant, and 5g of wetting agent evenly, then add 15g of fumed silica, 8g of wollastonite powder, and 2g of the first material and stir for 25 minutes. Stirring speed is 2600r / min, obtains the second material;

[0029] S3, add 35g nano acrylic emulsion, 12g epoxy resin, 2g leveling agent, 5g sodium carboxymethyl cellulose to 125g of the second material and st...

Embodiment 3

[0032] A preparation method for water-resistant water-based acrylic paint, comprising the steps of:

[0033] S1. Mix 21kg poly-β-hydroxybutyric acid and 145kg glycerin evenly, add 8kg chitosan and stir for 32min, add 52kg hydroxyapatite and continue stirring for 3.8h, the stirring temperature is 62°C, cool, filter, add 115kg anhydrous Stir the ethanol evenly, raise the temperature to 82°C, add 35kg polyethylene glycol and stir for 12 minutes, evaporate and recover absolute ethanol, wash the microsphere product with water, and dry to obtain the first material;

[0034] S2. Mix 100kg of deionized water, 3.5kg of thickener, 1.8kg of defoamer, 3.5kg of dispersant, and 3kg of wetting agent, and then add 22kg of fumed silica, 5kg of wollastonite powder, and 3.5kg of the first material Stir for 18min, the stirring speed is 2900r / min, obtain the second material;

[0035] S3, add 42kg nano acrylic emulsion, 8kg epoxy resin, 3.5kg leveling agent, 3.5kg carboxymethyl cellulose sodium to...

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PUM

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Abstract

The invention discloses a preparation method of water-resisting waterborne acrylic coating. The preparation method comprises the following steps: uniformly mixing poly-beta-hydroxybutyric acid and glycerol; adding chitosan and stirring; adding hydroxyapatite and continually stirring; cooling and filtering; adding absolute ethyl alcohol and uniformly stirring; raising the temperature, adding polyethylene glycol and stirring; evaporating and recycling the absolute ethyl alcohol; washing a microsphere product with water and drying to obtain a first material; uniformly mixing de-ionized water, a thickener, a de-foaming agent, a dispersant and a wetting agent; then adding fused white carbon black, wollastonite powder and the first material and stirring to obtain a second material; adding nano acrylic emulsion, epoxy resin, a flatting agent and sodium carboxymethyl cellulose into the second material and uniformly stirring; then adding a film-forming auxiliary agent and uniformly stirring; adjusting a system to be neutral to obtain the water-resisting waterborne acrylic coating. The preparation method disclosed by the invention is simple; the obtained water-resisting waterborne acrylic coating is reasonable in composition, low in cost and full in paint film, has good decoration function and environment protection function and meets environment protection requirements.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a preparation method of a water-resistant water-based acrylic coating. Background technique [0002] With the progress of the times, after long-term education and guidance to consumers, consumers' awareness of environmental protection home decoration and healthy home is increasing day by day, and the market demand for environmental protection coatings is growing rapidly. At present, various environmental protection coatings emerge in endlessly. The existing environmental protection coatings are usually prone to poor adhesion during use, which leads to the coating falling off. Especially in the rainy season in the south, the air is humid, the water resistance of the coating is poor, and the coating peels off seriously. ,waiting to be solved. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes ...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D163/00C09D101/28C09D7/61C09D7/62
CPCC09D133/00C08K2003/325C08L2205/03C08L63/00C08L1/286C08K13/06C08K9/10C08K3/32C08K3/36C08K3/34
Inventor 袁中领
Owner 合肥林邦门业有限公司
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