Heat-reflective thermal-insulation coating for external wall and preparation method of heat-reflective thermal-insulation coating
A heat-insulating paint and heat-reflection technology, applied in the field of paint, can solve the problems of reducing solar heat absorption, poor decorative effect, poor stain resistance, etc., to save energy and beautify the environment, strong reflectivity and refraction, and improve reflectivity. Effect
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Embodiment 1
[0020] Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4 adopt color pigments with a refractive index of 1.74≤n≤2 in the heat-reflective and heat-insulating coatings for external walls, wherein the color pigments within the range of the refractive index are as follows Praseodymium yellow, zircon iron red and cobalt blue etc.
[0021] The preparation method of the heat-reflective and heat-insulating coating for exterior walls of embodiment 1-4, its specific operation steps are:
[0022] Corresponding to Table 1, wet 4.0g of color pigments corresponding to different refractive indices into the container with 2g of water, pour 14g of pure acrylic emulsion into the container, and add the corresponding amount of silicon powder, at a low speed (40 ~ 55r / min ) after stirring for 15min, then add 0.2g of defoamer AF-55, 0.5g of dispersant SN-5040 and 0.3g of thickener T-117 to the container, and mix uniformly to obtain the outer compound of Example 1-4. Wall heat reflective in...
Embodiment 5
[0029] Embodiment 5, Embodiment 6 and Embodiment 7 adopt color pigments with a refractive index of 2<n≤2.3 in the heat-reflective and heat-insulating coatings for exterior walls, wherein the color pigments within the range of the refractive index include titanium nickel yellow, Titanium chrome brown, chrome green and cobalt green etc.
[0030] The preparation method of the heat-reflective heat-insulating coating for exterior walls of embodiment 5-7, its specific operation steps are:
[0031] Corresponding to Table 2, use 1.5g of water to moisten 2.0g of color pigments corresponding to different refractive indices into the container, pour 12g of pure acrylic emulsion into the container, and add the corresponding weight of silicon powder, at a low speed (40 ~ 55r / min) After stirring for 15min, add 0.2g of defoamer AF-55, 0.5g of dispersant SN-5040 and 0.3g of thickener T-117 to the container, and mix uniformly to obtain the Heat reflective insulation coating for exterior walls...
Embodiment 8-12
[0038] The heat-reflective and heat-insulating coatings for exterior walls in Examples 8-12 use color pigments with a refractive index of 2.4≤n≤2.8, wherein the color pigments within the refractive index range include iron oxide red and iron yellow.
[0039] The preparation method of the heat-reflective heat-insulating coating for exterior walls of embodiment 8-12, its specific operation steps are:
[0040]Corresponding to Table 3, use 1.5g of water to moisten 2.0g of color pigments corresponding to different refractive indices into the container, pour 12g of pure acrylic emulsion into the container, and add the corresponding weight of silicon powder, at a low speed (40 ~ 55r / min) After stirring for 15min, add 0.2g of defoamer AF-55, 0.5g of dispersant SN-5040 and 0.3g of thickener T-117 to the container, and mix uniformly to obtain the Heat reflective insulation coating for exterior walls.
[0041] In Examples 8-12, the pure acrylic emulsion is produced by Guangzhou Suixin ...
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