Reflective and heat-insulation coating for buildings and preparation method thereof
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A technology for reflective and heat-insulating coatings and buildings, applied in the direction of reflective/signal coatings, coatings, etc., can solve the problems that heat-reflecting materials cannot reflect sunlight, have low content of hollow microbeads, and have general heat-insulating effects, etc., to achieve Lower temperature, good environmental protection, good heat insulation effect
Inactive Publication Date: 2015-05-13
BEIJING PENGCHUANG WEIYE TECH
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But CN200710035834.6 also added heat-reflecting material in the base coat, and because the base coat does not directly contact sunlight, the heat-reflecting material does not have the effect of reflecting sunlight; CN201010115506 also includes rutile type titanium dioxide in the middle coat It is a heat-reflecting material, and the film-forming substance used is silicon acrylic emulsion, which has good weather resistance and stain resistance, but it does not have elasticity and is not suitable for the surface of flexible materials; CN201110364453.9 The content of hollow microspheres in the bottom layer is relatively small , the heat insulation effect is average, the surface layer is a colored transparent varnish, and its purpose is to solve the problem that the surface layer is a single white
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Embodiment 1
[0033] The utility model relates to a reflective and heat-insulating paint for rigid buildings, which is composed of two parts: a primer paint and a top coat paint.
[0034] Primer coating in parts by weight:
[0035]
[0036] Topcoat paint in parts by weight:
[0037]
[0038] The preparation of primer coating, comprises the steps:
[0039] Put barium sulfate, wetting and dispersing agent BYK163 and deionized water into a container and stir evenly, then pour it into a sand mill and grind until the particle size is less than 60 μm, then pour it out. Then slowly add pure acrylic emulsion, defoamer BYK019, alcohol ester 12 in sequence during the stirring process, and finally add glass hollow microspheres, stir at 300-500r / min for 30min, and then get the reflective heat-insulating coating primer for construction;
[0040] The preparation of surface coating comprises the steps:
[0041] Put rutile titanium dioxide, barium sulfate, wetting and dispersing agent BYK163 and d...
Embodiment 2
[0044] The utility model relates to a reflective and heat-insulating coating for elastic buildings, which is composed of two parts: a primer coating and a top coating coating.
[0045] Primer coating in parts by weight:
[0046]
[0047] Top coat paint in parts by weight:
[0048]
[0049] Using the above technical scheme, the primer coating with glass hollow microspheres as thermal insulation filler has a good thermal insulation effect, with a thermal conductivity of 0.08W / m·k; the solar reflectance of the top coating coating is as high as 85%, which can effectively Reflects sunlight for thermal insulation.
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Abstract
The invention discloses a reflective and heat-insulation coating for buildings and a preparation method thereof. The reflective and heat-insulation coating for buildings consists of two parts including prime coating and surface coating, wherein the prime coating comprises the following components in percentage by weight: 30-45% of film formation emulsion, 30-40% of hollow microspheres, 5-10% of filler, 0.5-2% of a wetting dispersant, 0.2-0.5% of a defoaming agent, 0.5-2% of a coalescing agent and 2-10% of deionized water; the surface coating comprises the following components in percentage by weight: 30-40% of film formation emulsion, 15-25% of rutile type titanium dioxide, 15-30% of filler, 0.5-2% of a wetting dispersant, 0.2-0.5% of a defoaming agent, 0.5-2% of a coalescing agent and 10-20% of deionized water. According to the reflective and heat-insulation coating for buildings and the preparation method thereof, the prime coating has excellent heat insulation effect, the surface coating has higher sunlight reflectivity, and if the prime coating and the surface coating are combined to be used, the temperature of a coated surface can be remarkably reduced; the reflective and heat-insulation coating has excellent weather, water and stain resistances.
Description
technical field [0001] The invention relates to the technical field of architectural coatings, in particular to a reflective and heat-insulating coating for buildings with dual functions of heat-blocking and heat-insulating and reflecting sunlight and heat-insulating and a preparation method thereof. Background technique [0002] With the rapid development of China's social economy, energy consumption is increasing day by day, especially the energy consumption of buildings is huge. Cooling equipment such as air conditioners consume a lot of energy. Thermal insulation coating is a new type of architectural coating. It has a series of characteristics that traditional coatings do not have, such as heat preservation and cost saving. It is an inevitable trend to replace traditional architectural coatings. [0003] At present, most of the reflective and heat-insulating coatings on the market contain rutile titanium dioxide and hollow microspheres. Rutile titanium dioxide has litt...
Claims
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Application Information
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