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
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[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
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[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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