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Black finishing varnish for automobile as well as preparation method and application thereof

A technology for finishing varnishes and automobiles, applied in the field of varnishes, can solve problems such as insufficient blackness of the paint film, achieve high gloss, prevent excessive oven temperature, and have excellent appearance

Active Publication Date: 2020-07-28
NIPPON PAINT GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide a black finish varnish for automobiles, which is suitable for matching with water-based and oil-based paints, can effectively improve the blackness of the vehicle body, make the vehicle body visually blacker and bluer, and has a sag limit and needle High pore limit, good appearance, good adhesion for high temperature recoating, excellent acid resistance and weather resistance, etc., which solves the problem of insufficient blackness of the paint film in the prior art

Method used

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  • Black finishing varnish for automobile as well as preparation method and application thereof
  • Black finishing varnish for automobile as well as preparation method and application thereof
  • Black finishing varnish for automobile as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0045] In a specific embodiment, the preparation method of the above-mentioned automotive yellowing-resistant varnish for sealing strips includes:

[0046] (1) Mix 0.5-1.0 parts of ultraviolet absorber, 0.4-1.0 parts of light stabilizer and 4-8 parts of mixed solvent to obtain the first mixture; 3-6 parts of reactive microgel, 2-5 parts Mix 1-2 parts of butyl etherified amino resin with 4-10 parts of mixed solvent to obtain the second mixture; mix 1-2 parts of xylene with 0.1-0.5 parts of degassing agent to obtain the third mixture; mix 40-60 parts of thermosetting acrylic resin , 15-25 parts of butylated amino resin, 4-10 parts of epoxy modified thermosetting acrylic resin, 0.1-0.5 parts of antioxidant additives, 0.1-1 parts of leveling agent, 0.1-1.0 parts of defoamer, 0.4- 0.8 parts of black pulp were mixed evenly to obtain the fourth mixture;

[0047] (2) Add the first mixture, the second mixture, and the third mixture to the fourth mixture in turn under stirring, and aft...

Embodiment 1

[0066] A kind of black finishing varnish for automobile, formula as shown in table 1

[0067] The formula of varnish in table 1 embodiment 1

[0068] serial number components number of copies 1 S-150 solvent oil 5 2 THASORB UV-234 0.9 3 RIASORB UV-292 0.45 4 S-150 solvent oil 2 5 Butanol 2 6 Trimethyl orthoacetate 1 7 AZS-1230 5 8 CYMEL 1158 2.5 9 Xylene 1 10 GK-19 0.2 11 Setalux 1766VB-64 54 12 CYMEL 1158 17.5 13 ACS-1284 6 14 BYK 355 0.5 15 BYK-323 0.1 16 BYK 051 0.3 17 SP M-350-1(T)9904A BLACK UDP 0.4 18 BYK ES80 0.15 19 S-100# solvent oil 1

[0069] The preparation method of the black finish varnish for automobile of the present embodiment may further comprise the steps:

[0070] The first step is to take a steam jacketed cylinder, add component 1 and ground the container for 5 minutes, add component 2 to the container, start...

Embodiment 2

[0076] A kind of black finishing varnish for automobile, formula as shown in table 2.

[0077] The formula of varnish in table 2 embodiment 2

[0078] serial number components number of copies 1 S-150 solvent oil 4 2 CHISORB 234 0.9 3 TINUVIN 292 0.5 4 S-150 solvent oil 1.8 5 Butanol 1.8 6 Trimethyl orthoacetate 1.1 7 AZS-617 3 8 UVAN 20SE-60 3 9 Xylene 1.2 10 Benzoin GK-19 0.25 11 Setalux 1766VB-64 50 12 UVAN 20SE-60 23.5 13 ACS-1017 5 14 TEGO FLOW 370 0.45 15 TEGO FLOW 425 0.2 16 DISPARLON OX-750 0.15 17 SP M-70(T)BLACK FW-200P(10PWC) 0.5 18 Methanol 2.5 19 S-100# solvent oil 0.15

[0079] The preparation method of the black finish varnish for automobile of the present embodiment may further comprise the steps:

[0080] The first step is to take a steam jacketed cylinder, add component 1 and ground the container for 5 minutes, ...

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Abstract

The invention discloses a black finishing varnish for an automobile. The black finishing varnish comprises, by weight, 40 to 60 parts of thermosetting acrylic resin, 15 to 30 parts of butylated aminoresin, 4 to 10 parts of epoxy modified thermosetting acrylic resin, 3 to 6 parts of reactive microgel, 0.1 to 0.5 part of an antioxidant auxiliary agent, 0.5 to 1.0 part of an ultraviolet absorber, 0.4 to 1.0 part of a light stabilizer, 0.1 to 1.0 part of a leveling agent, 0.1 to 0.5 part of a degassing agent, 0.1 to 1.0 part of an antifoaming agent, 0.1 to 2.5 parts of a conductive agent, 0.4 to0.8 part of black paste, 1 to 2 parts of xylene and 10 to 20 parts of a mixed solvent. The varnish can effectively improve the blackness of an automobile body, has excellent appearance, is suitable for being matched with water-based and oil-based colored paint systems, and satisfies the requirements of automobile color consumption upgrading. The varnish has high pinhole limit, sagging limit and good high-temperature repeated adhesive force; in addition, the coating also has excellent acid resistance and weather resistance.

Description

technical field [0001] The present invention relates to the field of varnishes. More specifically, it relates to a black finish varnish for automobiles and its preparation method and application. Background technique [0002] According to the "BASF Automotive Original Paint Color Report" released by BASF's Coatings Division, the color distribution of the global automotive market in 2018 was analyzed. From a global perspective, achromatic colors such as white, black, gray and silver are still the main colors on the road, and vehicles using these colors account for 80% of the entire car production. Among them, black, as a traditional color, gives people a feeling of solemnity, dignity and seriousness, and has always been the most popular color for official vehicles. For cars, the more high-end the car, the more monotonous the color, and most of them are black. The black color is solemn and full of style, which can highlight the identity. The higher the blackness, the higher...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D161/32
CPCC09D133/04C08L2205/035C08L2205/025C08L61/32C08L33/04
Inventor 林业伟夏天渊郭峻峰董明琪张睿
Owner NIPPON PAINT GUANGZHOU
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