A bus finish paint with excellent pollution resistance and low dust contamination rate and preparation method thereof

A pollution resistance, bus technology, applied in coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve the problems of paint pollution resistance, unsatisfactory dust rate, etc., and achieve excellent outdoor aging resistance, Effect of discoloration and peeling inhibition and weather resistance improvement

Active Publication Date: 2021-03-30
郑州双塔涂料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the indicators such as paint pollution resistance and dust contamination rate are not ideal.

Method used

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  • A bus finish paint with excellent pollution resistance and low dust contamination rate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A bus finish paint with excellent pollution resistance and low dust contamination rate and a preparation method thereof, the method comprising the following process steps:

[0055] For component A, prepare raw materials according to the following components and percentages:

[0056] Resin A, 35-45, is specifically a hydroxy acrylic resin, with a solid content of 75-80%, a hydroxyl content of 3.5-4.5%, high solid and low viscosity, providing excellent gloss and distinctness of image; outstanding weather resistance;

[0057] Resin B, 15-20, specifically a hydroxyacrylic resin for two-component automotive paint, with a glass transition temperature Tg≥60°C, providing excellent scratch resistance, stain resistance and drying performance, and extremely high hardness;

[0058] Wetting and dispersing agent A, 4-8, which is specifically a high-molecular-weight block copolymer containing pigment-affinity groups, has broad compatibility, and can be used to stably disperse various ...

Embodiment 2

[0073] A method for preparing a bus finish paint with excellent pollution resistance and low dust contamination rate, the method comprises the following process steps:

[0074] Component A, prepare raw materials according to the following components and percentages:

[0075] Resin A, 50-60, is specifically a hydroxyacrylic resin, with a hydroxyl content of 3.5-4.5%, a solid content of 75-80%, high solid and low viscosity, providing excellent gloss and vividness; outstanding weather resistance;

[0076] Resin C, 5-10, it is specifically a saturated polyester resin with a solid content of 80%, excellent appearance effect, and improves the vividness and leveling of the paint film;

[0077] Wetting and dispersing agent A, 4-8, which is specifically a high-molecular-weight block copolymer containing pigment-affinity groups, has broad compatibility, and can be used to stably disperse various pigments;

[0078] Wetting and dispersing agent B, 1-2, which is specifically a copolymer s...

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Abstract

The invention relates to a bus finishing coat with excellent stain resistance and low dust contamination rate, and a preparation method of the bus finishing coat. High solidity and low viscosity are realized by means of hydroxy acrylic resin, and excellent gloss and vividness are provided; excellent scratch resistance, stain resistance and drying performance are realized by means of the hydroxy acrylic resin for two-component automotive paint, and the hardness is extremely high; broad compatibility is realized by means of a high molecular weight block copolymer containing a pigment affinity group, and the high molecular weight block copolymer can be used for stably dispersing various types of pigment; the stronger absorption stability of inorganic pigment is realized by means of a copolymer solution containing an acid group, so that the viscosity reduction effect is good; by means of a flatting agent of a German BYK product and an organosilicone surface additive, the surface tension can be reduced, and the surface smoothness is improved; the occurrence of deterioration is prevented by means of a light stabilizer capable of capturing free radicals, so that the weather resistance ofthe coating film is effectively improved; the bus finishing coat has a good inhibitory effect on losing, cracking, foaming, discoloring and falling.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a bus finish paint with excellent pollution resistance and low dust contamination rate and a preparation method thereof. Background technique [0002] The automobile industry is one of the pillar industries in my country. With the rapid development of the automobile industry, the demand for automobile paint is also increasing. Automobile paint occupies an increasingly important position in my country's paint production. The surface of automobiles needs to be protected and decorated by paint. The quality of paint film is an intuitive evaluation of automobile quality, which will directly affect the market competitiveness of automobiles. The development and changes of automobiles put forward high-quality, low-cost and green technology requirements for paints. It is imperative to further develop scratch-resistant, stone-resistant, corrosion-resistant, high-hardness, beautiful and co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D167/00C09D7/63C09D7/65C09D7/41
CPCC08L2201/08C08L2205/025C08L2205/035C09D175/04C09D7/41C09D7/63C09D7/65C08L75/04C08L101/00C08L83/04C08L67/00
Inventor 段琼赵东亮牛丽涛
Owner 郑州双塔涂料有限公司
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