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A kind of automobile water-based interference type pearlescent glitter paint and preparation method thereof

An interference-type, flashing paint technology, applied in coatings, anti-corrosion coatings, etc., can solve problems such as insufficient corrosion resistance, paint film loss, floating color, etc., to achieve excellent water resistance and corrosion resistance, gorgeous and soft luster, and construction performance good effect

Active Publication Date: 2021-06-25
辰新恒达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: the flash-off time between the varnish and the pearlescent paint is insufficient or the solvent is not compatible, that is, the pearlescent paint does not achieve a sufficient interval time, and "insufficient drying" causes part of the pearlescent pigment to be dissolved by the varnish, and the result is that the pearlescent pigment in the pearlescent paint Or other pigment particles float to change the position, causing color difference and blooming (cloud spots); the viscosity of the paint is not adjusted properly, the greater the amount of diluent, the lower the viscosity of the base paint, the easier it is to produce floating color and fading. Flowers and other paint film disadvantages, resulting in color difference; pearlescent pigments have complex surface properties, uneven dispersion in the paint, resulting in flocculation, precipitation, granulation, and poor pearlescent effects; the weather resistance and corrosion resistance of resin base materials are not enough or The selected pearlescent pigment is not suitable, which will easily cause the paint film to lose its luster

Method used

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  • A kind of automobile water-based interference type pearlescent glitter paint and preparation method thereof
  • A kind of automobile water-based interference type pearlescent glitter paint and preparation method thereof
  • A kind of automobile water-based interference type pearlescent glitter paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 The preparation of self-thickening acrylic acid emulsion

[0039] (1) Take 2g of sodium dodecylbenzenesulfonate, dissolve it in 20g of deionized water, and add 55g of methyl methacrylate and 23g of butyl acrylate dropwise under stirring at a speed of 1000rpm. Stir for 1 h after the addition to obtain a core layer pre-emulsion;

[0040] (2) Get 2g of sodium dodecylbenzene sulfonate, dissolve it in 20g of deionized water, and add dropwise 12g of methacrylic acid, 40g of hydroxyethyl methacrylate and 26g of butyl acrylate under stirring at a speed of 1000rpm Esters, after 0.5h dropwise, stir for 1h after the dropwise addition, to obtain the shell layer pre-emulsion;

[0041] (3) Add 40g of deionized water and 0.2g of sodium dodecylbenzenesulfonate under nitrogen protection into a four-necked flask equipped with an agitator, a condenser, and a two-port connecting pipe, stir well, and place in a constant temperature water bath Heating to 80° C., adding dropwis...

Embodiment 2

[0044] Embodiment 2 The preparation of self-thickening acrylic acid emulsion

[0045] (1) Take 3g of sodium dodecylbenzenesulfonate, dissolve it in 30g of deionized water, and add 45g of methyl methacrylate and 22g of butyl acrylate dropwise under stirring at a speed of 800rpm. Stir for 1 h after the addition to obtain a core layer pre-emulsion;

[0046] (2) Get 3g of sodium dodecylbenzenesulfonate, dissolve it in 30g of deionized water, and add dropwise 6g of methacrylic acid, 40g of hydroxyethyl methacrylate and 21g of butyl acrylate under stirring at 800rpm Esters, after 0.5h dropwise, stir for 1h after the dropwise addition, to obtain the shell layer pre-emulsion;

[0047] (3) Add 30g of deionized water and 0.3g of sodium dodecylbenzenesulfonate under nitrogen protection into a four-necked flask equipped with an agitator, condenser, and two-port connecting pipe, stir well, and place in a constant temperature water bath Heating to 85° C., adding dropwise 65 g of the core ...

Embodiment 3

[0050] Embodiment 3 Preparation of self-thickening acrylic acid emulsion

[0051] (1) Take 5g of sodium dodecylbenzene sulfonate, dissolve it in 25g of deionized water, and add 55g of methyl methacrylate and 15g of butyl acrylate dropwise under stirring at a speed of 1500rpm. Stir for 1 h after the addition to obtain a core layer pre-emulsion;

[0052] (2) Get 5g of sodium dodecylbenzene sulfonate, dissolve it in 25g of deionized water, stir with 1500rpm rotating speed, add dropwise the methacrylic acid of 8g, the hydroxyethyl methacrylate of 32g and the butyl acrylate of 30g Esters, after 0.5h dropwise, stir for 1h after the dropwise addition, to obtain the shell layer pre-emulsion;

[0053] (3) Add 55g deionized water and 0.4g sodium dodecylbenzenesulfonate under the protection of nitrogen in a four-necked flask equipped with a stirrer, a condenser tube, and a two-port connecting pipe, stir well, and place in a constant temperature water bath Heating to 80° C., dropwise ad...

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Abstract

The invention discloses a water-based interference type pearlescent glitter paint for automobiles and a preparation method thereof. The water-based interference pearlescent glitter paint comprises the following components: mica pearl powder dispersion slurry, water-based polyurethane dispersion, self-thickening acrylic emulsion, water-based amino resin, thickener, amine neutralizer, diluent and water. The water-based interference type pearlescent glitter paint has a scientific proportion, the components are coordinated with each other, the drying speed is fast, and the construction performance is good, which meets the requirements of the 2C1B coating process for coatings, greatly saves costs, reduces energy consumption, and has the advantages of energy saving and emission reduction. advantage. The paint film formed by the pearlescent glitter paint has gorgeous and soft luster, has a pearlescent color, is full of aesthetic feeling, has no color difference, blooming, graining, loss of light or poor pearlescent effect, etc., and has excellent water and corrosion resistance and weather resistance. Good, meeting the decorative requirements of luxury cars.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a water-based interference type pearlescent glitter paint for automobiles and a preparation method thereof. Background technique [0002] The development of modern automotive coatings not only actively changes to green environmental protection, but also strives to give cars a good aesthetic feeling. The color of the car body has gradually become a symbol to show the personality of the car owner. People have higher and higher requirements for the high decorativeness of the car top paint. of favor. According to statistics, at present, more than 70% of the color paints of cars at home and abroad are made of metallic color or pearlescent color or the mixed color of the above two pigments, and the demand for the latter two is increasing. [0003] Pearlescent paint has a gorgeous and soft luster and illusion-like colors, and has always been a commonly used color paint fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/12C09D5/36C09D5/08C09D7/20C08F220/14C08F220/18C08F220/06C08F220/20
CPCC08F220/14C08L2205/03C08L2207/53C09D5/08C09D5/36C09D133/14C09D7/20C08L61/20C08L75/04C08K3/34C08F220/1804C08F220/06C08F220/20
Inventor 王玉廷
Owner 辰新恒达科技有限公司