Low-temperature water-based vehicle body coating as well as preparation method and use method thereof

A low-temperature, water-based technology, applied in polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as high energy consumption, large environmental pressure, and business operating costs

Active Publication Date: 2021-04-27
WUHU CHUNFENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, among the general water-based automotive body coatings, the mainstream products are mostly high-temperature water-based baking paints. The product construction process requires high energy consumption, which brings greate

Method used

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  • Low-temperature water-based vehicle body coating as well as preparation method and use method thereof
  • Low-temperature water-based vehicle body coating as well as preparation method and use method thereof
  • Low-temperature water-based vehicle body coating as well as preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043]Example 1

[0044]Low-temperature aqueous body coatings, including low-temperature aqueous single components, paint, low temperature aqueous single-component color paint and low thermostable double-component varnish;

[0045]The low-temperature aqueous single group is painted, including the following raw materials, shown in Table 1:

[0046]Table 1 Example 1 in paint formulation

[0047] Serial number Material name model supplier Example 1 1Water-based acrylic emulsion R4000Dasman 40 2Water-based polyester resin R986Dasman 10 3Antifoaming agent 011Bike 1 4Dispersant 180Bike 0.8 5Amine neutral AM-95 Dow 2 6Alkyne FS204 Yiyo 2 7Voltage silica R974Win 0.8 8Graft 3560Bike 0.2 9Titanium powder 2195Dawn 25 10Deionized water Domestic production 11.2 11Glycol butyl ether PNB Dow 2 12Precipitated sulfate Domestic production 2 13Ethanol Domestic production 2 14Thickener 420Bike 1

[0048]The preparation method of painting in the low-temperature aqueous single component is:

[0049]The formulation amo...

Example

[0068]Contrast 1 - Contrast 2

[0069]A low-temperature aqueous body coating comprising a painted, a color paint and a varnish; the formulation of coated and varnish is the same as in Example 1. Its color paint is shown in Table 4 below.

[0070]Table 4 Comparative Example 1 - Comparative 2 color paint formulation

[0071]

[0072]

[0073]Comparative Example 1 and the contrast 2 need to be applied in spray, 50-60 ° C pre-glutinous 3 minutes sprayed paint, and after the color paint sprayed, the drying temperature was 80 ° C for 3-5 minutes after spraying the varnish. The varnish was sprayed 80 degrees for 40-60 minutes for solidification.

[0074]Embodiments and contralateral curing rear lacquer films are as follows 5:

[0075]Table 5 membrane performance requirements

[0076]

[0077]

[0078]The products of the present invention can achieve curing in a lower baking temperature, greatly reduced energy consumption, and there is excellent adhesion, good weather, and the full-scale luster is good, combined with pa...

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Abstract

The invention provides a low-temperature water-based vehicle body coating as well as a preparation method and a use method thereof. The low-temperature water-based vehicle body coating comprises a low-temperature water-based single-component intermediate coat, a low-temperature water-based single-component colored paint and a low-temperature oily double-component varnish. According to the invention, water-based polyester modified acrylic resin is used as matrix resin of the intermediate coat, so baking temperature is low; the performance of a paint film is equivalent to the performance of a traditional solvent type coating, and the stone impact resistance of the paint film is superior to the stone impact resistance of the solvent type coating; and the distinctness of image and fullness of finish paint are improved, and the decorative effect of the whole vehicle is better.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a low-temperature water-based vehicle body coating, a preparation method and a use method thereof. Background technique [0002] At present, among the general water-based automotive body coatings, the mainstream products are mostly high-temperature water-based baking paints. The product construction process requires high energy consumption, which brings greater environmental pressure and business operating costs, reducing energy consumption during automobile painting, and reducing environmental pressure. , Reducing the coating operation cost of enterprises has become an urgent need of the market. [0003] The way to reduce the paint energy consumption of automobile enterprises can be by reducing the paint baking temperature, that is, the development of low-temperature water-based body paint. Contents of the invention [0004] The purpose of the present invention is to provi...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D167/00C09D7/61C09D175/04B05D7/24B05D7/26
CPCC09D133/04C09D7/61C09D175/04B05D7/24B05D7/26B05D7/584B05D7/582B05D2502/00B05D2501/00B05D2602/00C08K2003/2241C08K2003/3045C08L2201/08C08L67/00C08K3/36C08K3/22C08K3/30C08K13/02C08K5/06B05D2425/01B05D2425/02B05D2425/03
Inventor 罗磊夏根郭小平满中信金正北
Owner WUHU CHUNFENG NEW MATERIAL
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