A kind of high-toughness waterborne acrylic paint and preparation method thereof

A water-based acrylic, high-toughness technology, applied in the field of coatings, can solve the problems of long drying time for resin film formation, thermal stickiness and brittleness of paint film, short service life, etc., to improve toughness and mechanical properties, prolong service life, disperse The effect of performance improvement

Active Publication Date: 2022-02-18
常州市天盾涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned related technologies, the inventor believes that water-based acrylic coatings can develop rapidly because of their advantages, but they also have irremovable defects. Due to the long drying time of the resin film, the paint film has hot stickiness, cold brittleness, and poor anti-back tack, that is, toughness. Poor, resulting in a defect with a shorter service life

Method used

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  • A kind of high-toughness waterborne acrylic paint and preparation method thereof
  • A kind of high-toughness waterborne acrylic paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 2g of microcrystalline cellulose and 45mL of sulfuric acid solution with a mass fraction of 64%, place them in a conical flask and stir to disperse to obtain a dispersion solution, heat up to 40°C and keep for 2h to take out the precipitate, add 30mL to the precipitate to remove After deionized water, centrifuge at a speed of 3000r / min for 3min, centrifuge repeatedly 3 times to separate the solid centrifuged product, put the solid centrifuged product into a dialysis bag and dialyze to pH=7, and then obtain the dialysis product; Homogeneous treatment under homogeneous pressure, the number of cycles is 5 times to obtain cellulose nano colloid.

[0031] Add 80g of cellulose nanocolloid, 25mL of absolute ethanol and 70mL of ethyl orthosilicate into a three-necked flask in sequence, stir and disperse to obtain a dispersion; heat the dispersion to 60°C, keep it warm and stir for 2 hours, then add a molar ratio of 20% After adjusting the pH to 9 with ammonia water, heat ...

Embodiment 2

[0037] Weigh 5g of microcrystalline cellulose and 49mL of sulfuric acid solution with a mass fraction of 64%, place them in a conical flask and stir to disperse to obtain a dispersion, heat up to 45°C and keep for 3h to take out the precipitate, add 40mL to the precipitate to remove After deionized water, centrifuge at a speed of 4000r / min for 5min, centrifuge repeatedly 3 times to separate the solid centrifuged product, put the solid centrifuged product into a dialysis bag and dialyze to pH=7, and then obtain the dialysis product; Homogeneous treatment under homogeneous pressure, the number of cycles is 5 times to obtain cellulose nano colloid.

[0038] Add 96g of cellulose nano-colloid, 27mL of absolute ethanol and 82mL of ethyl orthosilicate into a three-necked flask in turn, stir and disperse to obtain a dispersion; heat the dispersion to 65°C and keep stirring for 3 hours, then add a molar ratio of 20% After adjusting the pH to 9 with ammonia water, heat up to 80°C and co...

Embodiment 3

[0044] Weigh 10g of microcrystalline cellulose and 55mL of sulfuric acid solution with a mass fraction of 64%, place them in a conical flask and stir to disperse to obtain a dispersion, heat up to 50°C and keep for 2h to take out the precipitate, add 50mL to the precipitate to remove After deionized water, centrifuge at a speed of 5000r / min for 5min, repeat centrifugation for 3 times to separate the solid centrifuged product, put the solid centrifuged product into a dialysis bag and dialyze to pH=7, and then obtain the dialysis product; Homogeneous treatment under homogeneous pressure, the number of cycles is 5 times to obtain cellulose nano colloid.

[0045] Add 100g of cellulose nanocolloid, 30mL of absolute ethanol and 90mL of ethyl orthosilicate into a three-necked flask in turn, stir and disperse to obtain a dispersion; heat the dispersion to 70°C and keep it for 4 hours, then add a molar ratio of 20% After adjusting the pH to 9 with ammonia water, heat up to 90°C and con...

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Abstract

This application relates to the field of coatings, and specifically discloses a high-toughness water-based acrylic paint. The high-toughness water-based acrylic paint is made of raw materials comprising the following parts by weight: 30-50 parts of high-toughness water-based acrylic resin, 10-30 parts of water-based amino resin, 25-35 parts of pigments and fillers, 20-30 parts of deionized water, 25-35 parts of diethylene glycol, 20-40 parts of ethylene glycol butyl ether, 10-30 parts of additives, high-toughness acrylic resin is based on water-based acrylic emulsion Raw materials are prepared by adding water-based elastomers in the emulsion polymerization process as toughening modifiers; the high-toughness water-based acrylic coatings of the present application can be used in decorative fields such as architectural decoration and home decoration, and have excellent toughness properties and are not easy to dry after curing. The advantage of cracking; in addition, the preparation method of the present application has the advantages of simple operation and wide application range.

Description

technical field [0001] The application relates to the field of coatings, more specifically, it relates to a high-toughness water-based acrylic coating and a preparation method thereof. Background technique [0002] The invention relates to a high-toughness water-based acrylic paint and a preparation method thereof. With the increasingly stringent requirements of the society for environmental protection, the water-based paint has become the development trend of paint in some industrial fields. Acrylic resin has the characteristics of good transparency, light resistance, heat resistance, chemical resistance, high cost performance, etc. At the same time, there are many kinds of monomers required for the synthesis of water-based acrylic resin, and the synthesized acrylic resin has various types and different properties. , making water-based acrylic anti-corrosion coatings widely used in automobiles, light industry, construction, textiles, wood products and other fields. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D175/04C09D101/04C09D161/20C09D7/61C08G18/66C08G18/48C08G18/44C08G18/42C08G18/32C08G18/34
Inventor 詹志军孙振华
Owner 常州市天盾涂料有限公司
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