Self-cleaning and environmental-friendly interior and exterior wall coating of buildings and preparation method thereof
A self-cleaning technology for interior and exterior walls, applied in polyether coatings, antifouling/underwater coatings, coatings, etc., can solve single problems, achieve surface dirt removal, good stability, improve self-cleaning and decompose pollution The effect of the power of things
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Embodiment 1
[0018] The self-cleaning environmental protection building interior and exterior wall paint of this embodiment is prepared from the following raw materials: SiO 2 Sol solid content 5.4g, anatase TiO 2 Nano powder 7.8g, glacial acetic acid 2.1g, acrylic resin 1.4g and water 200g.
[0019] The preparation method is as follows:
[0020] (1) Mix and stir 20 mL of tetraethyl orthosilicate, 100 mL of ethanol and 1 mL of 25 wt % ammonia water for 2 hours to obtain the SiO 2 Sol, SiO 2 The solid content concentration in the sol is 44.55 g / l;
[0021] (2) Anatase TiO with a particle size of 25nm 2 Add 7.8g of nano powder, 200g of water, 2.1g of glacial acetic acid and 1.4g of acrylic resin into SiO with a solid content of 5.4g prepared in step (1) 2 The sol was ball-milled for 2 hours to obtain a uniform translucent solution, which is the self-cleaning and environmentally friendly building interior and exterior wall coating of this embodiment.
[0022] Spray the self-cleaning env...
Embodiment 2
[0024] The self-cleaning environmental protection building interior and exterior wall paint of this embodiment is prepared from the following raw materials: SiO 2 Sol solid content 4.2g, anatase TiO 2 Nano powder 10g, glacial acetic acid 1.58g, carboxymethyl cellulose 1.2g and water 200g.
[0025] The preparation method is as follows:
[0026] (1) Mix and stir 20 mL of propyl orthosilicate, 100 mL of ethanol and 1 mL of 25 wt % ammonia water for 8 hours to obtain the SiO 2 Sol, SiO 2 The solid content concentration in the sol is 34.80 g / l;
[0027] (2) Anatase TiO with a particle size of 150nm 2 Add 10g of nano powder, 200g of water, 1.58g of glacial acetic acid and 1.2g of carboxymethyl cellulose to SiO with a solid content of 4.2g prepared in step (1) 2 The sol was ball-milled for 10 hours to obtain a uniform translucent solution, which is the self-cleaning and environmentally friendly building interior and exterior wall coating of this embodiment.
[0028] Spray t...
Embodiment 3
[0030] The self-cleaning environmental protection building interior and exterior wall paint of this embodiment is prepared from the following raw materials: SiO 2 Sol solid content 6.7g, anatase TiO 2 Nano powder 15g, glacial acetic acid 2.1g, silicone resin 1.2g and water 200g.
[0031] The preparation method is as follows:
[0032] (1) Mix and stir 10 mL of ethyl orthosilicate, 10 mL of methyl orthosilicate, 80 mL of ethanol and 1 mL of 25wt% ammonia water for 5 hours to obtain the SiO 2 Sol, SiO 2 The solid content concentration in the sol is 66.55g / l;
[0033] (2) Anatase TiO with a particle size of 10nm 2 Add 15g of nanopowder, 200g of water, 2.1g of glacial acetic acid, 0.4g of silicone resin and 0.8g of polyethylene glycol to SiO with a solid content of 6.7g prepared in step (1) 2 The sol was ball-milled for 6 hours to obtain a uniform translucent solution, which is the self-cleaning and environmentally friendly building interior and exterior wall coating of th...
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