Water-based decorative coating and preparation method thereof

A decorative coating, water-based technology, applied in coatings and other directions, can solve the problems of short service life, poor wear resistance, etc., and achieve the effects of good water stability, aging resistance, improved service life, and improved UV resistance.

Pending Publication Date: 2022-06-03
GUANGDONG HENGGUANG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the technical problems that the water-based decorative coatings in the prior art cannot meet the market demands such as poor weather resistance, poor abrasion resistance, and short service life, the present invention provides a high weather-resistant water-based acrylic decorative coating and a preparation method thereof. The coating film hardness and Outstanding wear resistance, weather resistance and coating film service life are significantly better than similar products in this field

Method used

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  • Water-based decorative coating and preparation method thereof
  • Water-based decorative coating and preparation method thereof

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preparation example Construction

[0044] The embodiment of the present application also provides a preparation method of the high weather-resistant water-based acrylic decorative coating, which specifically includes the following steps:

[0045] S1: Prepare the raw materials according to the formula amount, deionize the wetting and dispersing agent, the pH adjuster of the formula amount of 1 / 2 to 2 / 3, the defoamer of the formula amount of 1 / 2 to 7 / 10, and the deionization of the formula amount of 3 / 4. After mixing with water, stir and mix evenly at a speed of 400-500r / min, then add organic bentonite, ultraviolet absorber, pigment and barium sulfate, stir at a speed of 700-800r / min for 15-20min, grind to a fineness of ≤25μm, get the pre-pulp;

[0046] S2: After mixing the water-based acrylic emulsion, film-forming aid, leveling agent, polyethylene wax, remaining defoamer, remaining pH adjuster and remaining deionized water, stir at a speed of 400-500 r / min for 15-20 min to obtain a mixed solution Binder;

[0...

Embodiment 1

[0056] This embodiment provides a high-weather-resistant water-based acrylic decorative coating, including the following components by mass percentage: 60% of water-based acrylic emulsion, 4% of film-forming aid, 0.1% of defoamer, 0.8% of wetting and dispersing agent, Leveling agent 0.3%, pH adjuster 0.7%, organic bentonite 0.6%, UV absorber 5%, pigment 9%, barium sulfate 6%, polyethylene wax 6%, thickener 0.3%, add deionized water to 100 %.

[0057] Among them, the defoamer is composed of hydroxysiloxane polyacrylate Tego-902w with a mass ratio of 3:1 and a silicone-based defoamer BYK-028; the dispersant is composed of a pigment-containing affinity group with a mass ratio of 1:1 It is composed of high molecular weight block copolymer solution BYK-190 and polyester modified polyphosphate dispersant AFCONA-5010; the leveling agent consists of polyether modified siloxane solution BYK-346 with a mass ratio of 2:1 and solvent-free organomodified siloxane EFKA-3580; pH adjuster is...

Embodiment 2

[0063] This embodiment provides a high-weather-resistant water-based acrylic decorative coating, including the following components by mass percentage: 60% of water-based acrylic emulsion, 4% of film-forming aid, 0.1% of defoamer, 0.8% of wetting and dispersing agent, Leveling agent 0.3%, pH adjuster 0.7%, organic bentonite 0.6%, UV absorber 4%, pigment 9%, barium sulfate 6%, polyethylene wax 6%, thickener 0.3%, add deionized water to 100 %,

[0064] Among them, the defoamer is composed of hydroxysiloxane polyacrylate Tego-902w with a mass ratio of 4:1 and a silicone-based defoamer BYK-028; the dispersant is composed of a pigment-containing affinity group with a mass ratio of 2:1 It is composed of high molecular weight block copolymer solution BYK-190 and polyester modified polyphosphate dispersant AFCONA-5010; the leveling agent consists of polyether modified siloxane solution BYK-346 with a mass ratio of 3:1 and solvent-free organomodified siloxane EFKA-3580; pH adjuster is...

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Abstract

The invention relates to the technical field of coatings, in particular to a high-weather-resistance water-based acrylic decorative coating and a preparation method thereof.According to the high-weather-resistance water-based acrylic decorative coating, water-based acrylic emulsion serves as a main film forming matter, and under the mutual cooperation of benzophenone and benzotriazole ultraviolet light absorbers and polyethylene wax of a special structure, the ultraviolet light absorption performance is improved, and the weather resistance of the high-weather-resistance water-based acrylic decorative coating is improved. Under the mutual cooperation of other auxiliaries, the hardness, the wear resistance, the weather resistance and the service life of the paint film of the obtained paint are obviously improved, and the paint film is obviously superior to similar products.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an aqueous decorative coating and a preparation method thereof. Background technique [0002] In the early stage of development, the role of coatings was mainly for decoration. Later, due to the needs of other aspects, the research and improvement of various properties of coatings began. At present, decorative coatings in the industry refer to coatings that can protect the exterior and front of buildings, make the appearance of buildings beautiful and clean, and also protect the walls of buildings. [0003] With the continuous development of society and the continuous improvement of environmental protection requirements, oil-based decorative coatings are gradually replaced, and water-based decorative coatings are more and more popular with consumers, especially water-based decorative coatings with water-based acrylic as the main film-forming material. It has the characteristics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/48C09D7/65C09D7/61C09D7/41
CPCC09D133/04C09D7/48C09D7/65C09D7/61C09D7/41C08K2003/2241C08K2003/3045C08L51/06C08L33/04C08L83/04C08L97/02C08K5/132C08K5/3475C08K3/04C08K3/22C08K3/30C08K3/346
Inventor 刘冲田海长王亚轩郑齐李耀松
Owner GUANGDONG HENGGUANG CHEM CO LTD
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