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

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0103] The present invention also provides a method for preparing the water-based gloss topcoat according to any one of the above technical solutions, which includes the following steps:

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

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

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

[0107] In the preparation method of the present invention, the specific preferred schemes of the raw materials and the preferred values ​​of the added parts are consistent with the specific preferred schemes of the components in the water-based gloss topcoat and the preferred values ​​of the added parts. Let me repeat them o...

Example Embodiment

[0137] Example 1

[0138] Prepare water-based wood lacquer with high gloss, high durability and no prickly heat and dark bubbles according to the following ratio:

[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 A and B components is 100:30.

[0142] The preparation method includes the following steps:

[0143] A component production method:

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

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

[0146] 3) Slowly add texanol, tego wet 4200, BEK-200L...

Example Embodiment

[0152] Example 2

[0153] Prepare water-based wood lacquer with high gloss, high durability and no prickly heat and dark bubbles according to the following ratio:

[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 slurry: 20% , Deionized water: 3.2%

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

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

[0157] The preparation method includes the following steps:

[0158] A component production method:

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

[0160] 2) Sampling and spraying two drops of tego wet 4200 to observe the appearance of the coating film for shrinkage holes. After confirming that there are no shrinkage holes, adjust the speed of the disperser to 800~1000r / min;

[0161] 3) Slowly add texa...

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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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