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Water-based bright gloss topcoat with high brightness, high tolerance and no dark bubbles or seeds, and preparation method and application thereof

A water-based, bright technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of easy prickly heat and dark foam, affect the coating effect, insufficient brightness, etc., achieve high fullness, strong chemical resistance and other properties , the effect of good tolerance

Active Publication Date: 2019-09-06
深圳市雷巴环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing water-based high-gloss wood coatings on the market have various shortcomings, such as insufficient brightness, poor resistance, especially prone to prickly heat and dark bubbles during the drying process, which greatly affect the overall coating effect

Method used

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  • Water-based bright gloss topcoat with high brightness, high tolerance and no dark bubbles or seeds, and preparation method and application thereof
  • Water-based bright gloss topcoat with high brightness, high tolerance and no dark bubbles or seeds, and preparation method and application thereof
  • Water-based bright gloss topcoat with high brightness, high tolerance and no dark bubbles or seeds, and preparation method and application thereof

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Experimental program
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preparation example Construction

[0103] The present invention also provides a kind of preparation method of water-based bright topcoat as described in any one of above-mentioned technical scheme, comprises the following steps:

[0104] 1) Add co-solvent, wetting agent, anti-mold agent, thickener and defoamer to the water-based hydroxyacrylic resin, and mix to obtain component A;

[0105] After mixing the hydrophilic modified diisocyanate curing agent, propylene glycol methyl ether acetate and water remover for the second time, component B is obtained;

[0106] When in use, after combining component A and component B obtained in the above steps, a water-based glossy finish paint is obtained.

[0107] In the preparation method of the present invention, the specific preferred scheme of the raw material, and the preferred numerical value of the added number of parts are consistent with the specific preferred scheme of the components in the aforementioned water-based gloss finish paint, and the preferred numerical...

Embodiment 1

[0138] Prepare high-gloss, high-resistance water-based wood varnishes without heat rash and dark bubbles in the following proportions:

[0139] Component A: A2601: 50%, PA-4801: 35%, texanol: 5%, BYK028: 0.3%, tego wet 4200: 0.3%, OS6050: 1%, BEK-200L: 0.2%, deionized water: 8 %;

[0140] Component B: 4098-71: 40%, 2655: 45%, PMA: 14%, Additive Ti: 1%.

[0141] The weight ratio of components A and B is 100:30.

[0142] The preparation method comprises the following steps:

[0143] A component production method:

[0144] 1) Use a 300-mesh filter to filter the water-based resin A2601 and PA-4801 into a clean container, add BYK028, adjust the disperser to 1500-1800r / min, and disperse for 25 minutes;

[0145] 2) Sampling and spraying with two drops of tego wet 4200 to observe whether the appearance of the coating film has shrinkage cavity. After confirming that there is no shrinkage cavity, adjust the speed of the disperser to 800-1000r / min;

[0146] 3) Slowly add texanol, te...

Embodiment 2

[0153] Prepare high-gloss, high-resistance water-based wood varnishes without heat rash and dark bubbles in the following proportions:

[0154] Component A: A2601: 40%, PA-4801: 30%, texanol: 5%, BYK028: 0.3%, tego wet 4200: 0.3%, OS6050: 1%, BEK-200L: 0.2%, white pulp: 20% , deionized water: 3.2%

[0155] Component B: 4098-71: 40%, 2655: 45%, PMA: 14%, Additive Ti: 1%

[0156] The weight ratio of A and B components is 100:20.

[0157] The preparation method comprises the following steps:

[0158] A component production method:

[0159] 1) Use a 300-mesh filter to filter the water-based resin A2601 and PA-4801 into a clean container, add BYK028, adjust the disperser to 1500-1800r / min, and disperse for 25 minutes;

[0160] 2) Sampling and spraying with two drops of tego wet 4200 to observe whether the appearance of the coating film has shrinkage cavity. After confirming that there is no shrinkage cavity, adjust the speed of the disperser to 800-1000r / min;

[0161]3) Slowly...

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Abstract

The present invention provides a water-based gloss topcoat. The water-based gloss topcoat comprises a component A and a component B; the component A comprises, by weight, 50-110 parts of waterborne hydroxy acrylic resin, 3-6 parts of a cosolvent, 0.2-0.5 part of a wetting agent, 0.2-0.5 part of an antifoaming agent, 0.2-0.6 part of a thickener, 0.3-0.5 part of a mildew inhibitor, 0-25 parts of a color paste, and water; and the component B comprises, by weight, 60-110 parts of hydrophilic modified isophorone diisocyanate and hexamethylene diisocyanate, 15-30 parts of propylene glycol methyl ether acetate and 0.5-2 parts of a water scavenger. The water-based gloss topcoat provided by the invention has the advantages of high brightness, environmental protection, good yellowing resistance, high hardness, high water resistance and high chemical resistance; and the water-based gloss topcoat has high tolerance to the temperature, and can be cured at room temperature without seeds, and a filmformed by the gloss topcoat has high fullness, has almost no dark bubbles, thereby the gloss topcoat is very suitable for the coating production of toilet and bathroom cabinets.

Description

technical field [0001] The present invention relates to the technical field of water-based glossy topcoat, in particular to a water-based glossy topcoat and its preparation method and application, in particular to a water-based glossy topcoat with high brightness, high resistance and no dark bubbles and prickly heat and a preparation method thereof ,application. Background technique [0002] Paint is coated on the surface of the object to be protected or decorated, and can form a continuous solid film firmly attached to the object to be coated, also known as paint film or coating, usually based on resin, or oil, or emulsion, adding Or do not add pigments, fillers, add corresponding additives, and use organic solvents or water to prepare viscous liquids. [0003] There are many types of coatings, which are divided according to the form of the product, mainly divided into: solvent-based coatings, water-based coatings, powder coatings, high-solid coatings, metallic coatings, p...

Claims

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Application Information

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IPC IPC(8): C09D175/04C08G18/73C08G18/75C08G18/62
CPCC08G18/6225C08G18/722C08G18/73C08G18/755C09D175/04
Inventor 涂志江黄银平彭成镜
Owner 深圳市雷巴环保材料有限公司
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