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Nano heat insulation coating and preparation method thereof
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A technology of thermal insulation coatings and nano fillers, which is applied in the field of coatings and can solve the problems that coatings cannot meet the needs of use
Inactive Publication Date: 2017-12-01
ANHUI EMINENT BUILDING MATERIALS TECH
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Problems solved by technology
[0003] In use, coatings with only a single performance are often unable to meet the needs of use
When it is used to paint objects with cracks and heat insulation, the coating needs to have both waterproof and heat insulation characteristics. At this time, ordinary single heat insulation coatings or waterproof coatings cannot meet the above requirements.
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preparation example Construction
[0011] The present invention provides a kind of preparation method of nano thermal insulation coating, and described preparation method comprises:
[0012] The present invention also provides a nano thermal insulation coating prepared by the above preparation method.
[0014] 2) Stir and mix the styrene-acrylic emulsion, water-based epoxy resin and defoamer to prepare film-forming emulsion M1;
[0015] 3) Add anti-aging agent, film-forming aid, wetting agent, leveling agent and the nano-filler into the film-forming emulsion M1 and stir to prepare the nano-insulation coating.
[0016] In the above preparation method, the specific amount of each raw material in step 1) can be controlled within a wide range, but in order to improve the anti-aging performance of the enhanced filler prepared, preferably, mic...
preparation example 1
[0029] Mix mica powder, titanium dioxide, spinel powder, diatomaceous earth, ceramicfiber and calciumsilicate according to the weight ratio of 1:1.1:0.5:3:0.5:2. The temperature was raised to 650°C at a rate of 10°C, and calcined for 2 hours; then, the temperature was raised to 850°C at a rate of 10°C / min, and calcined for 1 hour; finally, the rate was lowered to 100°C at a rate of 10°C / min and then directly cooled with water; finally, it was obtained by grinding and sieving Nano filler with a particle size of 200nm; denoted as W1.
preparation example 2
[0031] Mix mica powder, titanium dioxide, spinel powder, diatomaceous earth, ceramic fiber and calcium silicate according to the weight ratio of 1:1.3:1.5:5:1.5:3. The temperature was raised to 700°C at a rate of 1 hour, and calcined for 1 hour; then, the temperature was raised to 900°C at a rate of 15°C / min, and calcined for 2 hours; finally, the rate was lowered to 150°C at a rate of 15°C / min and then directly cooled with water; finally, it was obtained by grinding and sieving Nano filler with a particle size of 400nm; denoted as W2.
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Abstract
The invention discloses a nano heat insulation coating and a preparation method thereof. The preparation method comprises the following steps: (1) stirring micapowder, titanium dioxide, spinelpowder, diatomite, ceramic fibers and calciumsilicate, mixing, then grinding and sieving to obtain nanofiller; (2) stirring and mixing styrene-acrylic emulsion, waterborne epoxy resin and a defoamer, thus obtaining film-forming emulsion M1; (3) adding an anti-aging agent, a film-forming aid, a wetting agent and a flatting agent as well as the nanofiller into the film-forming emulsion M1, and stirring to obtain the nano heat insulation coating. The nano heat insulation coating prepared by the preparation method has good water-proof and heat-insulation effects, and an excellent anti-aging property at the same time, and is an environmentally friendly and durable coating, which is suitable for popularization and use.
Description
technical field [0001] The invention relates to the field of coatings, in particular to nano thermal insulation coatings and a preparation method thereof. Background technique [0002] Coatings can be coated on the surface of the object to be protected or decorated by different construction techniques, and can form a continuous solid film with strong adhesion, certain strength, and the object to be coated. Based on the function of coatings, coatings can be divided into many different types, the most common are thermal insulation coatings and waterproof coatings. The thermal insulation coating can reflect the solar infrared and ultraviolet rays with a wavelength in the range of 400nm-2500nm, so as to avoid the accumulation of heat from the sun on the surface of the object and play a role in heat insulation. At the same time, it can automatically radiate heat to achieve the purpose of heat dissipation. Reduce the temperature of the object, even in cloudy days and at night, th...
Claims
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Application Information
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