Reflective heat-insulation primer-topcoat exterior wall coating and preparation method thereof
A technology for exterior wall paint and bottom surface, applied in the field of paint, can solve the problems of time-consuming and expensive, lack of energy saving and emission reduction, and achieve the effect of reducing construction
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[0035] A method for preparing a reflective and heat-insulating bottom-surface-integrated exterior wall coating, comprising the following steps:
[0036] Step S1, add 16.2-19.3 parts of water into the dispersion tank, add 0.1-0.15 parts of PH regulator, 0.3-0.4 parts of hydroxyethyl cellulose in turn, control the speed of the dispersion tank at 400-450r / min, and continue to disperse for 7-10min ;
[0037] Step S2, slowly add 0.15-0.2 parts of preservative, 0.8-1 part of wetting and dispersing agent, 0.4-0.6 parts of defoamer, adjust the speed of the dispersion cylinder to 350-450r / min, and continue to disperse for 4-8 minutes;
[0038] Step S3, add 16-20 parts of titanium dioxide, 2-4 parts of mica powder, 3-6 parts of reflective heat-insulating titanium dioxide, 10-15 parts of heavy calcium carbonate in sequence, adjust the speed of the dispersion cylinder to 1200-1500r / min, and continue Disperse for 15-20min;
[0039] Step S4, keep the rotation speed of the dispersing cylin...
Embodiment 1
[0056] A reflective and heat-insulating bottom-surface-integrated exterior wall coating, its specific raw materials and weight ratio are as follows:
[0057]
[0058] Craftsmanship:
[0059] (1) Add 16.2 parts of water into the dispersion tank, add 0.1 part of pH regulator and 0.3 part of hydroxyethyl cellulose in sequence, and control the rotation speed at 400r / min for 7 minutes;
[0060] (2) Slowly add 0.2 parts of preservatives, 0.8 parts of wetting and dispersing agents, and 0.4 parts of defoamers, adjust the speed to 350r / min, and continue to disperse for 4 minutes;
[0061](3) Add 20 parts of titanium dioxide, 3 parts of reflective heat-insulating titanium dioxide, 2 parts of mica powder, and 15 parts of calcium carbonate in sequence, adjust the speed to 1200r / min, and continue to disperse for 15 minutes;
[0062] (4) Keep the rotation speed at 500r / min, add 15 parts of primer emulsion and 26 parts of topcoat emulsion in sequence, and continue to disperse for 3 minut...
Embodiment 2
[0065] A reflective and heat-insulating bottom-surface-integrated exterior wall coating, its specific raw materials and weight ratio are as follows:
[0066]
[0067]
[0068] Craftsmanship:
[0069] (1) Add 17.65 parts of water into the dispersion tank, add 0.15 parts of pH regulator and 0.35 parts of hydroxyethyl cellulose in sequence, and control the rotation speed at 450r / min to continue dispersing for 10 minutes;
[0070] (2) Slowly add 0.15 parts of preservatives, 0.9 parts of wetting and dispersing agents, and 0.5 parts of defoamers, adjust the speed to 450r / min, and continue to disperse for 8 minutes;
[0071] (3) Add 18 parts of titanium dioxide, 4 parts of reflective heat-insulating titanium dioxide, 3 parts of mica powder, and 13 parts of calcium carbonate in sequence, adjust the speed to 1500r / min, and continue to disperse for 20 minutes;
[0072] (4) Keep the rotating speed of 650r / min, add 17 parts of primer emulsion and 24 parts of topcoat emulsion in seq...
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