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Water-based finish coating composition for appearance effect of bus body and its preparation method

A technology for water-based topcoats and buses, applied in multi-color effect coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problem that water-based coatings cannot be applied, achieve the requirements of colorful appearance, and improve the effect of appearance effect

Inactive Publication Date: 2017-12-01
HAOLISEN COATING SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that traditional water-based coatings cannot be applied to the fields requiring very high gloss coatings such as buses

Method used

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  • Water-based finish coating composition for appearance effect of bus body and its preparation method
  • Water-based finish coating composition for appearance effect of bus body and its preparation method
  • Water-based finish coating composition for appearance effect of bus body and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment B

[0053] The specific preparation steps of the water-based finish paint composition B component of the high appearance effect of the bus body in the embodiment B component 1-10 are as follows:

[0054] 1. Disperse the water-based isocyanate curing agent accounting for 60.0-80.0% of component B in a disperser at a speed of 500-800r / min for 10-15 minutes to obtain a uniformly dispersed curing agent dispersion. The isocyanate content of one of the water-based isocyanate curing agents is 9.0% to 24.0% by weight of the solid content, and the solid content is 70% to 100% by weight; The weight percent is 9.0-24.0%, and the solid content is 70%-100% by weight; the isocyanate content of the third water-based isocyanate curing agent is 18.0-48.0% by weight, and the solid content is 18.0-48.0% by weight. Calculated as 70% to 100%.

[0055] 2. After uniformly dispersing the water-soluble organic solvent accounting for 20.0-40.0% of component B, add it to the above curing agent dispersion u...

Embodiment

[0059] The specific preparation steps of the water-based finish paint composition B component of the high appearance effect of the bus body in the embodiment A+B components 1-10 are as follows:

[0060] 1. Disperse 75-90.0% of the A component and 25%-10.0% of the B component in the disperser at a speed of 500-800r / min for 20-30 minutes to obtain a dispersed Uniform dispersion. The balance was made up with deionized water.

[0061] Table 3. Composition of Embodiment A+B Components 1-10

[0062] (unit: mass percentage)

[0063]

[0064] The test method of the water-based finish paint composition prepared by embodiment A+B component 1~10 is as follows: measure the glossiness of paint film with the gloss meter of German BYK company, the film thickness of every group of paint is 40-50um; Fog The shadow value is also measured by the haze meter of BYK in Germany. The haze value of 5 points is taken for each group, and then the average value is taken; the DOI is also measured by...

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Abstract

The invention relates to a water-based finish coating composition for appearance effect of bus body, which comprises the A component and the B component, wherein the A component is prepared from, by weight percent, 55.0-70.0% of water-based hydroxy acrylic acid, 30-40% of pigment filler, 2.0-10.0% of water-soluble organic solvent, 0.5-4.0% of functional assistant, and allowance of deionized water. The B component is prepared from, by weight percent, 60.0-80.0% of water-based isocyanate curing agent, 20.0-40.0% of water-soluble organic solvent; according to the weight percent, the A component is 75-90.0%, and the B component is 25-10.0%. The coating composition is featured by very good appearance effect and high gloss; the water-based finish coating composition can meet performance requirements such as hardness, impact and weather fastness, and the construction requirement of rapid and no-mistake.

Description

[technical field] [0001] The invention relates to a water-based finish paint composition for high appearance effect of a bus body and a preparation method thereof. [Background technique] [0002] In recent years, with the rapid growth of the national economy, the production and sales of coatings in my country are growing at a very fast rate. However, compared with developed countries, the proportion of environmentally friendly coatings in my country is far lower than that of developed countries. In particular, highly polluting oil-based coating products still have a large market share, and these highly polluting coating products are harmful to the environment and the health of construction workers. extremely serious hazards. With the enhancement of people's awareness of environmental protection, especially the stricter and more standardized environmental protection laws and regulations of the country, there will be more and more new coating products that use green environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/02C09D5/29C09D7/12C08G18/62
CPCC09D175/04C08G18/6229C09D5/024C09D5/29
Inventor 殷昌青刘薇薇周贤孔凡桃刘阳徐杰张建中
Owner HAOLISEN COATING SHANGHAI
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