A heat-reflecting heat-insulating coating with high pollution resistance and water resistance
A heat-insulating paint and pollution-resistant technology, applied in the field of paint, can solve the problems of attenuation of heat-insulating effect of reflective heat-insulating paint, poor water resistance, poor pollution resistance, rare reflective heat-insulating paint, etc., and achieve obvious and good reflective heat-insulating effect. Excellent adhesion and anti-settling performance
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Embodiment 1
[0040] 1. The composition and proportion are as follows:
[0041]
[0042] Among them, the water-based acrylic emulsion adopts Rohm and Haas 261P pure acrylic emulsion.
[0043] Two, the preparation method is as follows:
[0044] (1) Add dispersant, bactericide, defoamer, adhesion promoter, wetting agent, rheology additive A, film-forming aid and pH regulator into deionized water and stir evenly;
[0045] (2) Continue to add various paint filler components (titanium dioxide, high white aluminum silicate, barium sulfate, calcium carbonate, silicon oxide, mica powder) and stir evenly;
[0046] (3) Continue to add water-based acrylic emulsion and stir evenly, then add spherical silicone resin and stir evenly;
[0047] (4) Finally, add colloidal silicon, propylene glycol, rheological additive B, and rheological additive C, and stir evenly.
[0048] 3. Test results
[0049] After testing, the full-band reflectance of the coating film reaches 0.87, the full-band emissivity re...
Embodiment 2
[0051] 1. The composition and proportion are as follows:
[0052]
[0053]
[0054] Among them, the water-based acrylic emulsion adopts Rohm and Haas 261P pure acrylic emulsion.
[0055] Two, the preparation method is as follows:
[0056] The coating preparation method is carried out with reference to the method of Example 1.
[0057] 3. Test results
[0058] After testing, the full-band reflectance of the coating film reaches 0.87, the full-band emissivity reaches 0.90, the coating heat insulation temperature difference reaches 25.3°C, and the pollution resistance is 3.2%. After the coating film is polluted, it can be cleaned with clean water without wiping marks on the surface .
Embodiment 3
[0060] 1. The composition and proportion are as follows:
[0061]
[0062]
[0063] Among them, the water-based acrylic emulsion adopts Rohm and Haas 261P pure acrylic emulsion.
[0064] Two, the preparation method is as follows:
[0065] The coating preparation method is carried out with reference to the method of Example 1.
[0066] 3. Test results
[0067] After testing, the full-band reflectance of the coating film reaches 0.88, the full-band emissivity reaches 0.91, the coating heat insulation temperature difference reaches 25.6°C, and the pollution resistance is 1%. After the coating film is polluted, it can be cleaned with clean water without wiping marks on the surface .
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