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Inorganic dry powder architectural coating and production method thereof

A technology of architectural coatings and inorganic dry powders, applied in the direction of alkali metal silicate coatings, coatings, etc., can solve the problem that inorganic dry powder coatings are limited to white or light-colored coatings, and overcome poor scrub resistance and weather resistance, good durability scrubbing effect

Inactive Publication Date: 2012-08-01
SHANGHAI GIANT ENERGY SAVING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned inorganic dry powder coatings will produce soluble salts due to the addition of lime, cement, etc., and these soluble salts will gradually precipitate on the surface under certain conditions. Because these salts are slightly white, light-colored spots appear on the dark coating, that is, The so-called whitening phenomenon, so this type of inorganic dry powder coating is limited to white or light-colored coatings

Method used

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  • Inorganic dry powder architectural coating and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] In this example, the components include:

[0112] Potassium silicate 100g;

[0113] Aluminum phosphate 5g;

[0114] EVA redispersible latex powder 50g;

[0115] CaCO 3 400g

[0116] Defoamer 1g;

[0117] Thickener 1g.

[0118] Dry-mix the above components to prepare the inorganic dry powder architectural coating, add it to water, stir evenly, and then start the construction operation, which can be carried out by spraying, roller coating or brushing, and its performance is in accordance with the construction industry standard of the People's Republic of China JG / T 26-2002 "Inorganic Architectural Coatings for Exterior Walls" was tested, and the VOC content was tested according to the national standard of the People's Republic of China GB 18582-2008 "Limits of Harmful Substances in Interior Decoration Materials and Interior Wall Coatings". The test results are shown in the table 1 and Table 2.

Embodiment 2

[0120] In this example, the components include:

[0121] Potassium silicate 250g;

[0122] Aluminum phosphate 50g;

[0123] EVA redispersible latex powder 150g;

[0124] TiO 2 150g;

[0125] CaCO 3 550g

[0126] Defoamer 5g;

[0127] Thickener 5g.

[0128] Dry-mix the above components to prepare the inorganic dry powder architectural coating, add it to water, stir evenly, and then start the construction operation, which can be carried out by spraying, roller coating or brushing, and its performance is in accordance with the construction industry standard of the People's Republic of China JG / T 26-2002 "Inorganic Architectural Coatings for Exterior Walls" was tested, and the VOC content was tested according to the national standard of the People's Republic of China GB 18582-2008 "Limits of Harmful Substances in Interior Decoration Materials and Interior Wall Coatings". The test results are shown in the table 1 and Table 2.

Embodiment 3

[0130] In this example, the components include:

[0131] Sodium silicate 233g;

[0132] ZnO 46g;

[0133] EVA redispersible latex powder 134g;

[0134] Iron oxide yellow 128g;

[0135] Wollastonite 534g

[0136] Defoamer 3g;

[0137] Thickener 2g.

[0138] Dry-mix the above components to prepare the inorganic dry powder architectural coating, add it to water, stir evenly, and then start the construction operation, which can be carried out by spraying, roller coating or brushing, and its performance is in accordance with the construction industry standard of the People's Republic of China JG / T 26-2002 "Inorganic Architectural Coatings for Exterior Walls" was tested, and the VOC content was tested according to the national standard of the People's Republic of China GB 18582-2008 "Limits of Harmful Substances in Interior Decoration Materials and Interior Wall Coatings". The test results are shown in the table 1 and Table 2.

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Abstract

The invention discloses an inorganic dry powder architectural coating which comprises an inorganic gel system consisting of alkali metal silicate and a curing agent and organic redispersible latex powder, and can further comprise a filling material, a pigment and an auxiliary agent. The architectural coating provided in the invention has good storage stability, washability and weatherability, is convenient for transportation and does not undergo salting-out and whitening nor generate harmful substances like VOC, benzene, formaldehyde and heavy metals after film forming through curing.

Description

technical field [0001] The invention relates to a coating, in particular to an inorganic dry powder architectural coating with good weather resistance, scrub resistance and no salting-out whitening phenomenon. Background technique [0002] Architectural coatings mainly refer to coatings used for building exterior walls, interior walls, ceilings, floors, etc., which have decorative, protective and residential performance improvement functions. At present, architectural coatings are mainly water-based coatings, and water-based coatings are coatings with water as the dispersion medium, including water emulsion and aqueous solution coatings. However, the composition of water-based paints includes up to 35-55% of water, which requires a lot of manpower, material and financial resources for the packaging and transportation of water-based paints; Resilience, that is, no stratification, thickening, etc. during storage, also requires high cost and specialized technology. [0003] W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26
CPCC04B2111/00482C09D1/00C04B28/26C09D1/02C04B14/06C04B2103/0057C04B2103/10C04B2103/54C04B14/26C04B22/126C04B24/2641C04B14/32C04B22/16C04B14/04C04B22/0013C04B22/06C09D1/04C08K3/22C08K3/32C08K3/34C08K2003/2296C08K2003/327
Inventor 郭四龙
Owner SHANGHAI GIANT ENERGY SAVING MATERIALS
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